Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Changes In Branch json-in-core Excluding Merge-Ins
This is equivalent to a diff from 71272caf to 8da07c8b
2022-01-11
| ||
23:28 | Merge the JSON interface into the core. Add -> and ->> operators for JSON that are compatible with by MySQL and PG. (check-in: 4cbb3e3e user: drh tags: trunk) | |
22:06 | Remove vestigial traces of json_ntype(). (Closed-Leaf check-in: 8da07c8b user: drh tags: json-in-core) | |
18:01 | Fix the PG-compatible -> and ->> path parsing. (check-in: 22d51383 user: drh tags: json-in-core) | |
2022-01-09
| ||
19:36 | Merge trunk enhancements into the json-in-core branch. (check-in: ea755771 user: drh tags: json-in-core) | |
2022-01-08
| ||
21:50 | Add NEVER() macros to two branches that became unreachable due to [e199a851e316bd47]. (check-in: 71272caf user: drh tags: trunk) | |
21:00 | Add function format() as an alias for printf(), for compatibility with other systems. (check-in: 68bffc61 user: drh tags: trunk) | |
Changes to Makefile.in.
︙ | ︙ | |||
176 177 178 179 180 181 182 | expr.lo fault.lo fkey.lo \ fts3.lo fts3_aux.lo fts3_expr.lo fts3_hash.lo fts3_icu.lo \ fts3_porter.lo fts3_snippet.lo fts3_tokenizer.lo fts3_tokenizer1.lo \ fts3_tokenize_vtab.lo \ fts3_unicode.lo fts3_unicode2.lo fts3_write.lo \ fts5.lo \ func.lo global.lo hash.lo \ | | | 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 | expr.lo fault.lo fkey.lo \ fts3.lo fts3_aux.lo fts3_expr.lo fts3_hash.lo fts3_icu.lo \ fts3_porter.lo fts3_snippet.lo fts3_tokenizer.lo fts3_tokenizer1.lo \ fts3_tokenize_vtab.lo \ fts3_unicode.lo fts3_unicode2.lo fts3_write.lo \ fts5.lo \ func.lo global.lo hash.lo \ icu.lo insert.lo json.lo legacy.lo loadext.lo \ main.lo malloc.lo mem0.lo mem1.lo mem2.lo mem3.lo mem5.lo \ memdb.lo memjournal.lo \ mutex.lo mutex_noop.lo mutex_unix.lo mutex_w32.lo \ notify.lo opcodes.lo os.lo os_unix.lo os_win.lo \ pager.lo parse.lo pcache.lo pcache1.lo pragma.lo prepare.lo printf.lo \ random.lo resolve.lo rowset.lo rtree.lo \ sqlite3session.lo select.lo sqlite3rbu.lo status.lo stmt.lo \ |
︙ | ︙ | |||
230 231 232 233 234 235 236 237 238 239 240 241 242 243 | $(TOP)/src/fkey.c \ $(TOP)/src/func.c \ $(TOP)/src/global.c \ $(TOP)/src/hash.c \ $(TOP)/src/hash.h \ $(TOP)/src/hwtime.h \ $(TOP)/src/insert.c \ $(TOP)/src/legacy.c \ $(TOP)/src/loadext.c \ $(TOP)/src/main.c \ $(TOP)/src/malloc.c \ $(TOP)/src/mem0.c \ $(TOP)/src/mem1.c \ $(TOP)/src/mem2.c \ | > | 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 | $(TOP)/src/fkey.c \ $(TOP)/src/func.c \ $(TOP)/src/global.c \ $(TOP)/src/hash.c \ $(TOP)/src/hash.h \ $(TOP)/src/hwtime.h \ $(TOP)/src/insert.c \ $(TOP)/src/json.c \ $(TOP)/src/legacy.c \ $(TOP)/src/loadext.c \ $(TOP)/src/main.c \ $(TOP)/src/malloc.c \ $(TOP)/src/mem0.c \ $(TOP)/src/mem1.c \ $(TOP)/src/mem2.c \ |
︙ | ︙ | |||
362 363 364 365 366 367 368 | SRC += \ $(TOP)/ext/userauth/userauth.c \ $(TOP)/ext/userauth/sqlite3userauth.h SRC += \ $(TOP)/ext/rbu/sqlite3rbu.h \ $(TOP)/ext/rbu/sqlite3rbu.c SRC += \ | < | 363 364 365 366 367 368 369 370 371 372 373 374 375 376 | SRC += \ $(TOP)/ext/userauth/userauth.c \ $(TOP)/ext/userauth/sqlite3userauth.h SRC += \ $(TOP)/ext/rbu/sqlite3rbu.h \ $(TOP)/ext/rbu/sqlite3rbu.c SRC += \ $(TOP)/ext/misc/stmt.c # Generated source code files # SRC += \ keywordhash.h \ opcodes.c \ |
︙ | ︙ | |||
869 870 871 872 873 874 875 876 877 878 879 880 881 882 | hash.lo: $(TOP)/src/hash.c $(HDR) $(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/hash.c insert.lo: $(TOP)/src/insert.c $(HDR) $(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/insert.c legacy.lo: $(TOP)/src/legacy.c $(HDR) $(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/legacy.c loadext.lo: $(TOP)/src/loadext.c $(HDR) $(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/loadext.c main.lo: $(TOP)/src/main.c $(HDR) | > > > | 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 | hash.lo: $(TOP)/src/hash.c $(HDR) $(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/hash.c insert.lo: $(TOP)/src/insert.c $(HDR) $(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/insert.c json.lo: $(TOP)/src/json.c $(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/json.c legacy.lo: $(TOP)/src/legacy.c $(HDR) $(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/legacy.c loadext.lo: $(TOP)/src/loadext.c $(HDR) $(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/loadext.c main.lo: $(TOP)/src/main.c $(HDR) |
︙ | ︙ | |||
1172 1173 1174 1175 1176 1177 1178 | userauth.lo: $(TOP)/ext/userauth/userauth.c $(HDR) $(EXTHDR) $(LTCOMPILE) -DSQLITE_CORE -c $(TOP)/ext/userauth/userauth.c sqlite3session.lo: $(TOP)/ext/session/sqlite3session.c $(HDR) $(EXTHDR) $(LTCOMPILE) -DSQLITE_CORE -c $(TOP)/ext/session/sqlite3session.c | < < < | 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 | userauth.lo: $(TOP)/ext/userauth/userauth.c $(HDR) $(EXTHDR) $(LTCOMPILE) -DSQLITE_CORE -c $(TOP)/ext/userauth/userauth.c sqlite3session.lo: $(TOP)/ext/session/sqlite3session.c $(HDR) $(EXTHDR) $(LTCOMPILE) -DSQLITE_CORE -c $(TOP)/ext/session/sqlite3session.c stmt.lo: $(TOP)/ext/misc/stmt.c $(LTCOMPILE) -DSQLITE_CORE -c $(TOP)/ext/misc/stmt.c # FTS5 things # FTS5_SRC = \ $(TOP)/ext/fts5/fts5.h \ |
︙ | ︙ |
Changes to Makefile.msc.
︙ | ︙ | |||
1244 1245 1246 1247 1248 1249 1250 | date.lo dbpage.lo dbstat.lo delete.lo \ expr.lo fault.lo fkey.lo \ fts3.lo fts3_aux.lo fts3_expr.lo fts3_hash.lo fts3_icu.lo \ fts3_porter.lo fts3_snippet.lo fts3_tokenizer.lo fts3_tokenizer1.lo \ fts3_tokenize_vtab.lo fts3_unicode.lo fts3_unicode2.lo fts3_write.lo \ fts5.lo \ func.lo global.lo hash.lo \ | | | 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 | date.lo dbpage.lo dbstat.lo delete.lo \ expr.lo fault.lo fkey.lo \ fts3.lo fts3_aux.lo fts3_expr.lo fts3_hash.lo fts3_icu.lo \ fts3_porter.lo fts3_snippet.lo fts3_tokenizer.lo fts3_tokenizer1.lo \ fts3_tokenize_vtab.lo fts3_unicode.lo fts3_unicode2.lo fts3_write.lo \ fts5.lo \ func.lo global.lo hash.lo \ icu.lo insert.lo json.lo legacy.lo loadext.lo \ main.lo malloc.lo mem0.lo mem1.lo mem2.lo mem3.lo mem5.lo \ memdb.lo memjournal.lo \ mutex.lo mutex_noop.lo mutex_unix.lo mutex_w32.lo \ notify.lo opcodes.lo os.lo os_unix.lo os_win.lo \ pager.lo pcache.lo pcache1.lo pragma.lo prepare.lo printf.lo \ random.lo resolve.lo rowset.lo rtree.lo \ sqlite3session.lo select.lo sqlite3rbu.lo status.lo stmt.lo \ |
︙ | ︙ | |||
1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 | $(TOP)\src\expr.c \ $(TOP)\src\fault.c \ $(TOP)\src\fkey.c \ $(TOP)\src\func.c \ $(TOP)\src\global.c \ $(TOP)\src\hash.c \ $(TOP)\src\insert.c \ $(TOP)\src\legacy.c \ $(TOP)\src\loadext.c \ $(TOP)\src\main.c \ $(TOP)\src\malloc.c \ $(TOP)\src\mem0.c \ $(TOP)\src\mem1.c \ $(TOP)\src\mem2.c \ | > | 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 | $(TOP)\src\expr.c \ $(TOP)\src\fault.c \ $(TOP)\src\fkey.c \ $(TOP)\src\func.c \ $(TOP)\src\global.c \ $(TOP)\src\hash.c \ $(TOP)\src\insert.c \ $(TOP)\src\json.c \ $(TOP)\src\legacy.c \ $(TOP)\src\loadext.c \ $(TOP)\src\main.c \ $(TOP)\src\malloc.c \ $(TOP)\src\mem0.c \ $(TOP)\src\mem1.c \ $(TOP)\src\mem2.c \ |
︙ | ︙ | |||
1441 1442 1443 1444 1445 1446 1447 | $(TOP)\ext\fts3\fts3_unicode.c \ $(TOP)\ext\fts3\fts3_unicode2.c \ $(TOP)\ext\fts3\fts3_write.c \ $(TOP)\ext\icu\icu.c \ $(TOP)\ext\rtree\rtree.c \ $(TOP)\ext\session\sqlite3session.c \ $(TOP)\ext\rbu\sqlite3rbu.c \ | < | 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 | $(TOP)\ext\fts3\fts3_unicode.c \ $(TOP)\ext\fts3\fts3_unicode2.c \ $(TOP)\ext\fts3\fts3_write.c \ $(TOP)\ext\icu\icu.c \ $(TOP)\ext\rtree\rtree.c \ $(TOP)\ext\session\sqlite3session.c \ $(TOP)\ext\rbu\sqlite3rbu.c \ $(TOP)\ext\misc\stmt.c # Extension header files, part 1. # SRC08 = \ $(TOP)\ext\fts1\fts1.h \ $(TOP)\ext\fts1\fts1_hash.h \ |
︙ | ︙ | |||
1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 | hash.lo: $(TOP)\src\hash.c $(HDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\hash.c insert.lo: $(TOP)\src\insert.c $(HDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\insert.c legacy.lo: $(TOP)\src\legacy.c $(HDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\legacy.c loadext.lo: $(TOP)\src\loadext.c $(HDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\loadext.c main.lo: $(TOP)\src\main.c $(HDR) | > > > | 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 | hash.lo: $(TOP)\src\hash.c $(HDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\hash.c insert.lo: $(TOP)\src\insert.c $(HDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\insert.c json.lo: $(TOP)\src\json.c $(HDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\json.c legacy.lo: $(TOP)\src\legacy.c $(HDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\legacy.c loadext.lo: $(TOP)\src\loadext.c $(HDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\loadext.c main.lo: $(TOP)\src\main.c $(HDR) |
︙ | ︙ | |||
2294 2295 2296 2297 2298 2299 2300 | fts3_unicode2.lo: $(TOP)\ext\fts3\fts3_unicode2.c $(HDR) $(EXTHDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_unicode2.c fts3_write.lo: $(TOP)\ext\fts3\fts3_write.c $(HDR) $(EXTHDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_write.c | < < < | 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 | fts3_unicode2.lo: $(TOP)\ext\fts3\fts3_unicode2.c $(HDR) $(EXTHDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_unicode2.c fts3_write.lo: $(TOP)\ext\fts3\fts3_write.c $(HDR) $(EXTHDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_write.c stmt.lo: $(TOP)\ext\misc\stmt.c $(HDR) $(EXTHDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\misc\stmt.c rtree.lo: $(TOP)\ext\rtree\rtree.c $(HDR) $(EXTHDR) $(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\rtree\rtree.c sqlite3session.lo: $(TOP)\ext\session\sqlite3session.c $(HDR) $(EXTHDR) |
︙ | ︙ |
Changes to configure.
︙ | ︙ | |||
901 902 903 904 905 906 907 908 909 910 911 912 913 | enable_readline with_readline_lib with_readline_inc enable_debug enable_amalgamation enable_load_extension enable_math enable_all enable_memsys5 enable_memsys3 enable_fts3 enable_fts4 enable_fts5 | > < | 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 | enable_readline with_readline_lib with_readline_inc enable_debug enable_amalgamation enable_load_extension enable_math enable_json enable_all enable_memsys5 enable_memsys3 enable_fts3 enable_fts4 enable_fts5 enable_update_limit enable_geopoly enable_rtree enable_session enable_gcov ' ac_precious_vars='build_alias |
︙ | ︙ | |||
1556 1557 1558 1559 1560 1561 1562 | --disable-readline disable readline support --enable-debug enable debugging & verbose explain --disable-amalgamation Disable the amalgamation and instead build all files separately --disable-load-extension Disable loading of external extensions --disable-math Disable math functions | > | < | 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 | --disable-readline disable readline support --enable-debug enable debugging & verbose explain --disable-amalgamation Disable the amalgamation and instead build all files separately --disable-load-extension Disable loading of external extensions --disable-math Disable math functions --disable-json Disable JSON functions --enable-all Enable FTS4, FTS5, Geopoly, RTree, Sessions --enable-memsys5 Enable MEMSYS5 --enable-memsys3 Enable MEMSYS3 --enable-fts3 Enable the FTS3 extension --enable-fts4 Enable the FTS4 extension --enable-fts5 Enable the FTS5 extension --enable-update-limit Enable the UPDATE/DELETE LIMIT clause --enable-geopoly Enable the GEOPOLY extension --enable-rtree Enable the RTREE extension --enable-session Enable the SESSION extension --enable-gcov Enable coverage testing using gcov Optional Packages: |
︙ | ︙ | |||
11493 11494 11495 11496 11497 11498 11499 11500 11501 11502 11503 11504 11505 11506 | if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi fi ######## # The --enable-all argument is short-hand to enable # multiple extensions. # Check whether --enable-all was given. if test "${enable_all+set}" = set; then : enableval=$enable_all; | > > > > > > > > > > > > > > > > > > | 11493 11494 11495 11496 11497 11498 11499 11500 11501 11502 11503 11504 11505 11506 11507 11508 11509 11510 11511 11512 11513 11514 11515 11516 11517 11518 11519 11520 11521 11522 11523 11524 | if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi fi ########## # Do we want to support JSON functions # # Check whether --enable-json was given. if test "${enable_json+set}" = set; then : enableval=$enable_json; fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to support JSON functions" >&5 $as_echo_n "checking whether to support JSON functions... " >&6; } if test "$enable_json" = "no"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_OMIT_JSON" else { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } fi ######## # The --enable-all argument is short-hand to enable # multiple extensions. # Check whether --enable-all was given. if test "${enable_all+set}" = set; then : enableval=$enable_all; |
︙ | ︙ | |||
11693 11694 11695 11696 11697 11698 11699 | ac_res=$ac_cv_search_log if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi else | < < < < < < < < < < < < < < < < < < | 11711 11712 11713 11714 11715 11716 11717 11718 11719 11720 11721 11722 11723 11724 | ac_res=$ac_cv_search_log if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi ######### # See whether we should enable the LIMIT clause on UPDATE and DELETE # statements. |
︙ | ︙ |
Changes to configure.ac.
︙ | ︙ | |||
601 602 603 604 605 606 607 608 609 610 611 612 | AC_MSG_RESULT([no]) else AC_MSG_RESULT([yes]) OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_MATH_FUNCTIONS" AC_SEARCH_LIBS(ceil, m) fi ######## # The --enable-all argument is short-hand to enable # multiple extensions. AC_ARG_ENABLE(all, AC_HELP_STRING([--enable-all], | > > > > > > > > > > > > | | 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 | AC_MSG_RESULT([no]) else AC_MSG_RESULT([yes]) OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_MATH_FUNCTIONS" AC_SEARCH_LIBS(ceil, m) fi ########## # Do we want to support JSON functions # AC_ARG_ENABLE(json, AC_HELP_STRING([--disable-json],[Disable JSON functions])) AC_MSG_CHECKING([whether to support JSON functions]) if test "$enable_json" = "no"; then AC_MSG_RESULT([no]) OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_OMIT_JSON" else AC_MSG_RESULT([yes]) fi ######## # The --enable-all argument is short-hand to enable # multiple extensions. AC_ARG_ENABLE(all, AC_HELP_STRING([--enable-all], [Enable FTS4, FTS5, Geopoly, RTree, Sessions])) ########## # Do we want to support memsys3 and/or memsys5 # AC_ARG_ENABLE(memsys5, AC_HELP_STRING([--enable-memsys5],[Enable MEMSYS5])) AC_MSG_CHECKING([whether to support MEMSYS5]) |
︙ | ︙ | |||
659 660 661 662 663 664 665 | [Enable the FTS5 extension])) AC_MSG_CHECKING([whether to support FTS5]) if test "${enable_fts5}" = "yes" -o "${enable_all}" = "yes" ; then AC_MSG_RESULT([yes]) OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS5" AC_SEARCH_LIBS([log],[m]) else | < < < < < < < < < < < | 671 672 673 674 675 676 677 678 679 680 681 682 683 684 | [Enable the FTS5 extension])) AC_MSG_CHECKING([whether to support FTS5]) if test "${enable_fts5}" = "yes" -o "${enable_all}" = "yes" ; then AC_MSG_RESULT([yes]) OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS5" AC_SEARCH_LIBS([log],[m]) else AC_MSG_RESULT([no]) fi ######### # See whether we should enable the LIMIT clause on UPDATE and DELETE # statements. AC_ARG_ENABLE(update-limit, AC_HELP_STRING([--enable-update-limit], |
︙ | ︙ |
Added doc/json-enhancements.md.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | # JSON Functions Enhancements (2022) This document summaries enhancements to the SQLite JSON support added in early 2022. ## 1.0 Change summary: 1. New **->** and **->>** operators that work like MySQL and PostgreSQL (PG). 2. JSON functions are built-in rather than being an extension. They are included by default, but can be omitted using the -DSQLITE_OMIT_JSON compile-time option. ## 2.0 New operators **->** and **->>** The SQLite language adds two new binary operators **->** and **->>**. Both operators are similar to json_extract(). The left operand is JSON and the right operand is a JSON path expression (possibly abbreviated for compatibility with PG - see below). So they are similar to a two-argument call to json_extract(). The difference between -> and ->> (and json_extract()) is as follows: * The -> operator always returns JSON. * The ->> operator converts the answer into a primitive SQL datatype such as TEXT, INTEGER, REAL, or NULL. If a JSON object or array is selected, that object or array is rendered as text. If a JSON value is selected, that value is converted into its corresponding SQL type * The json_extract() interface returns JSON when a JSON object or array is selected, or a primitive SQL datatype when a JSON value is selected. This is different from MySQL, in which json_extract() always returns JSON, but the difference is retained because it has worked that way for 6 years and changing it now would likely break a lot of legacy code. In MySQL and PG, the ->> operator always returns TEXT (or NULL) and never INTEGER or REAL. This is due to limitations in the type handling capabilities of those systems. In MySQL and PG, the result type a function or operator may only depend on the type of its arguments, never the value of its arguments. But the underlying JSON type depends on the value of the JSON path expression, not the type of the JSON path expression (which is always TEXT). Hence, the result type of ->> in MySQL and PG is unable to vary according to the type of the JSON value being extracted. The type system in SQLite is more general. Functions in SQLite are able to return different datatypes depending on the value of their arguments. So the ->> operator in SQLite is able to return TEXT, INTEGER, REAL, or NULL depending on the JSON type of the value being extracted. This means that the behavior of the ->> is slightly different in SQLite versus MySQL and PG in that it will sometimes return INTEGER and REAL values, depending on its inputs. It is possible to implement the ->> operator in SQLite so that it always operates exactly like MySQL and PG and always returns TEXT or NULL, but I have been unable to think of any situations where returning the actual JSON value this would cause problems, so I'm including the enhanced functionality in SQLite. The table below attempts to summarize the differences between the -> and ->> operators and the json_extract() function, for SQLite, MySQL, and PG. JSON values are shown using their SQL text representation but in a bold font. <table border=1 cellpadding=5 cellspacing=0> <tr><th>JSON<th>PATH<th>-> operator<br>(all)<th>->> operator<br>(MySQL/PG) <th>->> operator<br>(SQLite)<th>json_extract()<br>(SQLite) <tr><td> **'{"a":123}'** <td>'$.a'<td> **'123'** <td> '123' <td> 123 <td> 123 <tr><td> **'{"a":4.5}'** <td>'$.a'<td> **'4.5'** <td> '4.5' <td> 4.5 <td> 4.5 <tr><td> **'{"a":"xyz"}'** <td>'$.a'<td> **'"xyz"'** <td> 'xyz' <td> 'xyz' <td> 'xyz' <tr><td> **'{"a":null}'** <td>'$.a'<td> **'null'** <td> NULL <td> NULL <td> NULL <tr><td> **'{"a":[6,7,8]}'** <td>'$.a'<td> **'[6,7,8]'** <td> '[6,7,8]' <td> '[6,7,8]' <td> **'[6,7,8]'** <tr><td> **'{"a":{"x":9}}'** <td>'$.a'<td> **'{"x":9}'** <td> '{"x":9}' <td> '{"x":9}' <td> **'{"x":9}'** <tr><td> **'{"b":999}'** <td>'$.a'<td> NULL <td> NULL <td> NULL <td> NULL </table> Important points about the table above: * The -> operator always returns either JSON or NULL. * The ->> operator never returns JSON. It always returns TEXT or NULL, or in the case of SQLite, INTEGER or REAL. * The MySQL json_extract() function works exactly the same as the MySQL -> operator. * The SQLite json_extract() operator works like -> for JSON objects and arrays, and like ->> for JSON values. * The -> operator works the same for all systems. * The only difference in ->> between SQLite and other systems is that when the JSON value is numeric, SQLite returns a numeric SQL value, whereas the other systems return a text representation of the numeric value. ### 2.1 Abbreviated JSON path expressions for PG compatibility The table above always shows the full JSON path expression: '$.a'. But PG does not accept this syntax. PG only allows a single JSON object label name or a single integer array index. In order to provide compatibility with PG, The -> and ->> operators in SQLite are extended to also support a JSON object label or an integer array index for the right-hand side operand, in addition to a full JSON path expression. Thus, a -> or ->> operator that works on MySQL will work in SQLite. And a -> or ->> operator that works in PG will work in SQLite. But because SQLite supports the union of the disjoint capabilities of MySQL and PG, there will always be -> and ->> operators that work in SQLite that do not work in one of MySQL and PG. This is an unavoidable consequence of the different syntax for -> and ->> in MySQL and PG. In the following table, assume that "value1" is a JSON object and "value2" is a JSON array. <table border=1 cellpadding=5 cellspacing=0> <tr><th>SQL expression <th>Works in MySQL?<th>Works in PG?<th>Works in SQLite <tr><td>value1->'$.a' <td> yes <td> no <td> yes <tr><td>value1->'a' <td> no <td> yes <td> yes <tr><td>value2->'$[2]' <td> yes <td> no <td> yes <tr><td>value2->2 <td> no <td> yes <td> yes </table> The abbreviated JSON path expressions only work for the -> and ->> operators in SQLite. The json_extract() function, and all other built-in SQLite JSON functions, continue to require complete JSON path expressions for their PATH arguments. ## 3.0 JSON moved into the core The JSON interface is now moved into the SQLite core. When originally written in 2015, the JSON functions were an extension that could be optionally included at compile-time, or loaded at run-time. The implementation was in a source file named ext/misc/json1.c in the source tree. JSON functions were only compiled in if the -DSQLITE_ENABLE_JSON1 compile-time option was used. After these enhancements, the JSON functions are now built-ins. The source file that implements the JSON functions is moved to src/json.c. No special compile-time options are needed to load JSON into the build. Instead, there is a new -DSQLITE_OMIT_JSON compile-time option to leave them out. |
Deleted ext/misc/json1.c.
|
| < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < |
Changes to ext/rtree/geopoly.c.
︙ | ︙ | |||
22 23 24 25 26 27 28 | #ifdef GEOPOLY_ENABLE_DEBUG static int geo_debug = 0; # define GEODEBUG(X) if(geo_debug)printf X #else # define GEODEBUG(X) #endif | < | < < < > | 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | #ifdef GEOPOLY_ENABLE_DEBUG static int geo_debug = 0; # define GEODEBUG(X) if(geo_debug)printf X #else # define GEODEBUG(X) #endif /* Character class routines */ #ifdef sqlite3Isdigit /* Use the SQLite core versions if this routine is part of the ** SQLite amalgamation */ # define safe_isdigit(x) sqlite3Isdigit(x) # define safe_isalnum(x) sqlite3Isalnum(x) # define safe_isxdigit(x) sqlite3Isxdigit(x) #else /* Use the standard library for separate compilation */ #include <ctype.h> /* amalgamator: keep */ # define safe_isdigit(x) isdigit((unsigned char)(x)) # define safe_isalnum(x) isalnum((unsigned char)(x)) # define safe_isxdigit(x) isxdigit((unsigned char)(x)) #endif #ifndef JSON_NULL /* The following stuff repeats things found in json1 */ /* ** Growing our own isspace() routine this way is twice as fast as ** the library isspace() function. */ static const char geopolyIsSpace[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
︙ | ︙ | |||
63 64 65 66 67 68 69 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; | | | 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; #define fast_isspace(x) (geopolyIsSpace[(unsigned char)x]) #endif /* JSON NULL - back to original code */ /* Compiler and version */ #ifndef GCC_VERSION #if defined(__GNUC__) && !defined(SQLITE_DISABLE_INTRINSIC) # define GCC_VERSION (__GNUC__*1000000+__GNUC_MINOR__*1000+__GNUC_PATCHLEVEL__) #else |
︙ | ︙ | |||
152 153 154 155 156 157 158 | t = a[1]; a[1] = a[2]; a[2] = t; } /* Skip whitespace. Return the next non-whitespace character. */ static char geopolySkipSpace(GeoParse *p){ | | | 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | t = a[1]; a[1] = a[2]; a[2] = t; } /* Skip whitespace. Return the next non-whitespace character. */ static char geopolySkipSpace(GeoParse *p){ while( fast_isspace(p->z[0]) ) p->z++; return p->z[0]; } /* Parse out a number. Write the value into *pVal if pVal!=0. ** return non-zero on success and zero if the next token is not a number. */ static int geopolyParseNumber(GeoParse *p, GeoCoord *pVal){ |
︙ | ︙ |
Changes to main.mk.
︙ | ︙ | |||
60 61 62 63 64 65 66 | date.o dbpage.o dbstat.o delete.o expr.o \ fault.o fkey.o \ fts3.o fts3_aux.o fts3_expr.o fts3_hash.o fts3_icu.o fts3_porter.o \ fts3_snippet.o fts3_tokenizer.o fts3_tokenizer1.o \ fts3_tokenize_vtab.o \ fts3_unicode.o fts3_unicode2.o \ fts3_write.o fts5.o func.o global.o hash.o \ | | | 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | date.o dbpage.o dbstat.o delete.o expr.o \ fault.o fkey.o \ fts3.o fts3_aux.o fts3_expr.o fts3_hash.o fts3_icu.o fts3_porter.o \ fts3_snippet.o fts3_tokenizer.o fts3_tokenizer1.o \ fts3_tokenize_vtab.o \ fts3_unicode.o fts3_unicode2.o \ fts3_write.o fts5.o func.o global.o hash.o \ icu.o insert.o json.o legacy.o loadext.o \ main.o malloc.o mem0.o mem1.o mem2.o mem3.o mem5.o \ memdb.o memjournal.o \ mutex.o mutex_noop.o mutex_unix.o mutex_w32.o \ notify.o opcodes.o os.o os_unix.o os_win.o \ pager.o pcache.o pcache1.o pragma.o prepare.o printf.o \ random.o resolve.o rowset.o rtree.o \ select.o sqlite3rbu.o status.o stmt.o \ |
︙ | ︙ | |||
107 108 109 110 111 112 113 114 115 116 117 118 119 120 | $(TOP)/src/fkey.c \ $(TOP)/src/func.c \ $(TOP)/src/global.c \ $(TOP)/src/hash.c \ $(TOP)/src/hash.h \ $(TOP)/src/hwtime.h \ $(TOP)/src/insert.c \ $(TOP)/src/legacy.c \ $(TOP)/src/loadext.c \ $(TOP)/src/main.c \ $(TOP)/src/malloc.c \ $(TOP)/src/mem0.c \ $(TOP)/src/mem1.c \ $(TOP)/src/mem2.c \ | > | 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | $(TOP)/src/fkey.c \ $(TOP)/src/func.c \ $(TOP)/src/global.c \ $(TOP)/src/hash.c \ $(TOP)/src/hash.h \ $(TOP)/src/hwtime.h \ $(TOP)/src/insert.c \ $(TOP)/src/json.c \ $(TOP)/src/legacy.c \ $(TOP)/src/loadext.c \ $(TOP)/src/main.c \ $(TOP)/src/malloc.c \ $(TOP)/src/mem0.c \ $(TOP)/src/mem1.c \ $(TOP)/src/mem2.c \ |
︙ | ︙ | |||
240 241 242 243 244 245 246 | SRC += \ $(TOP)/ext/userauth/userauth.c \ $(TOP)/ext/userauth/sqlite3userauth.h SRC += \ $(TOP)/ext/rbu/sqlite3rbu.c \ $(TOP)/ext/rbu/sqlite3rbu.h SRC += \ | < | 241 242 243 244 245 246 247 248 249 250 251 252 253 254 | SRC += \ $(TOP)/ext/userauth/userauth.c \ $(TOP)/ext/userauth/sqlite3userauth.h SRC += \ $(TOP)/ext/rbu/sqlite3rbu.c \ $(TOP)/ext/rbu/sqlite3rbu.h SRC += \ $(TOP)/ext/misc/stmt.c # FTS5 things # FTS5_HDR = \ $(TOP)/ext/fts5/fts5.h \ |
︙ | ︙ | |||
824 825 826 827 828 829 830 | fts3_write.o: $(TOP)/ext/fts3/fts3_write.c $(HDR) $(EXTHDR) $(TCCX) -DSQLITE_CORE -c $(TOP)/ext/fts3/fts3_write.c fts5.o: fts5.c sqlite3ext.h sqlite3.h $(TCCX) -DSQLITE_CORE -c fts5.c | < < < | 824 825 826 827 828 829 830 831 832 833 834 835 836 837 | fts3_write.o: $(TOP)/ext/fts3/fts3_write.c $(HDR) $(EXTHDR) $(TCCX) -DSQLITE_CORE -c $(TOP)/ext/fts3/fts3_write.c fts5.o: fts5.c sqlite3ext.h sqlite3.h $(TCCX) -DSQLITE_CORE -c fts5.c stmt.o: $(TOP)/ext/misc/stmt.c sqlite3ext.h sqlite3.h $(TCCX) -DSQLITE_CORE -c $(TOP)/ext/misc/stmt.c rtree.o: $(TOP)/ext/rtree/rtree.c $(HDR) $(EXTHDR) $(TCCX) -DSQLITE_CORE -c $(TOP)/ext/rtree/rtree.c |
︙ | ︙ |
Changes to src/callback.c.
︙ | ︙ | |||
354 355 356 357 358 359 360 | ){ int i; for(i=0; i<nDef; i++){ FuncDef *pOther; const char *zName = aDef[i].zName; int nName = sqlite3Strlen30(zName); int h = SQLITE_FUNC_HASH(zName[0], nName); | < | 354 355 356 357 358 359 360 361 362 363 364 365 366 367 | ){ int i; for(i=0; i<nDef; i++){ FuncDef *pOther; const char *zName = aDef[i].zName; int nName = sqlite3Strlen30(zName); int h = SQLITE_FUNC_HASH(zName[0], nName); assert( aDef[i].funcFlags & SQLITE_FUNC_BUILTIN ); pOther = sqlite3FunctionSearch(h, zName); if( pOther ){ assert( pOther!=&aDef[i] && pOther->pNext!=&aDef[i] ); aDef[i].pNext = pOther->pNext; pOther->pNext = &aDef[i]; }else{ |
︙ | ︙ |
Changes to src/ctime.c.
︙ | ︙ | |||
174 175 176 177 178 179 180 181 182 183 184 185 186 187 | "DISABLE_FTS3_UNICODE", #endif #ifdef SQLITE_DISABLE_FTS4_DEFERRED "DISABLE_FTS4_DEFERRED", #endif #ifdef SQLITE_DISABLE_INTRINSIC "DISABLE_INTRINSIC", #endif #ifdef SQLITE_DISABLE_LFS "DISABLE_LFS", #endif #ifdef SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS "DISABLE_PAGECACHE_OVERFLOW_STATS", #endif | > > > | 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 | "DISABLE_FTS3_UNICODE", #endif #ifdef SQLITE_DISABLE_FTS4_DEFERRED "DISABLE_FTS4_DEFERRED", #endif #ifdef SQLITE_DISABLE_INTRINSIC "DISABLE_INTRINSIC", #endif #ifdef SQLITE_DISABLE_JSON "DISABLE_JSON", #endif #ifdef SQLITE_DISABLE_LFS "DISABLE_LFS", #endif #ifdef SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS "DISABLE_PAGECACHE_OVERFLOW_STATS", #endif |
︙ | ︙ | |||
253 254 255 256 257 258 259 | #endif #ifdef SQLITE_ENABLE_ICU "ENABLE_ICU", #endif #ifdef SQLITE_ENABLE_IOTRACE "ENABLE_IOTRACE", #endif | < < < | 256 257 258 259 260 261 262 263 264 265 266 267 268 269 | #endif #ifdef SQLITE_ENABLE_ICU "ENABLE_ICU", #endif #ifdef SQLITE_ENABLE_IOTRACE "ENABLE_IOTRACE", #endif #ifdef SQLITE_ENABLE_LOAD_EXTENSION "ENABLE_LOAD_EXTENSION", #endif #ifdef SQLITE_ENABLE_LOCKING_STYLE "ENABLE_LOCKING_STYLE=" CTIMEOPT_VAL(SQLITE_ENABLE_LOCKING_STYLE), #endif #ifdef SQLITE_ENABLE_MATH_FUNCTIONS |
︙ | ︙ |
Changes to src/func.c.
︙ | ︙ | |||
93 94 95 96 97 98 99 100 101 102 103 104 105 106 | /* EVIDENCE-OF: R-01470-60482 The sqlite3_value_type(V) interface returns ** the datatype code for the initial datatype of the sqlite3_value object ** V. The returned value is one of SQLITE_INTEGER, SQLITE_FLOAT, ** SQLITE_TEXT, SQLITE_BLOB, or SQLITE_NULL. */ sqlite3_result_text(context, azType[i], -1, SQLITE_STATIC); } /* ** Implementation of the length() function */ static void lengthFunc( sqlite3_context *context, int argc, | > > > > > > > > > > > | 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | /* EVIDENCE-OF: R-01470-60482 The sqlite3_value_type(V) interface returns ** the datatype code for the initial datatype of the sqlite3_value object ** V. The returned value is one of SQLITE_INTEGER, SQLITE_FLOAT, ** SQLITE_TEXT, SQLITE_BLOB, or SQLITE_NULL. */ sqlite3_result_text(context, azType[i], -1, SQLITE_STATIC); } /* subtype(X) ** ** Return the subtype of X */ static void subtypeFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ sqlite3_result_int(context, sqlite3_value_subtype(argv[0])); } /* ** Implementation of the length() function */ static void lengthFunc( sqlite3_context *context, int argc, |
︙ | ︙ | |||
2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 | WAGGREGATE(min, 1, 0, 1, minmaxStep, minMaxFinalize, minMaxValue, 0, SQLITE_FUNC_MINMAX|SQLITE_FUNC_ANYORDER ), FUNCTION(max, -1, 1, 1, minmaxFunc ), FUNCTION(max, 0, 1, 1, 0 ), WAGGREGATE(max, 1, 1, 1, minmaxStep, minMaxFinalize, minMaxValue, 0, SQLITE_FUNC_MINMAX|SQLITE_FUNC_ANYORDER ), FUNCTION2(typeof, 1, 0, 0, typeofFunc, SQLITE_FUNC_TYPEOF), FUNCTION2(length, 1, 0, 0, lengthFunc, SQLITE_FUNC_LENGTH), FUNCTION(instr, 2, 0, 0, instrFunc ), FUNCTION(printf, -1, 0, 0, printfFunc ), FUNCTION(format, -1, 0, 0, printfFunc ), FUNCTION(unicode, 1, 0, 0, unicodeFunc ), FUNCTION(char, -1, 0, 0, charFunc ), FUNCTION(abs, 1, 0, 0, absFunc ), | > | 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 | WAGGREGATE(min, 1, 0, 1, minmaxStep, minMaxFinalize, minMaxValue, 0, SQLITE_FUNC_MINMAX|SQLITE_FUNC_ANYORDER ), FUNCTION(max, -1, 1, 1, minmaxFunc ), FUNCTION(max, 0, 1, 1, 0 ), WAGGREGATE(max, 1, 1, 1, minmaxStep, minMaxFinalize, minMaxValue, 0, SQLITE_FUNC_MINMAX|SQLITE_FUNC_ANYORDER ), FUNCTION2(typeof, 1, 0, 0, typeofFunc, SQLITE_FUNC_TYPEOF), FUNCTION2(subtype, 1, 0, 0, subtypeFunc, SQLITE_FUNC_TYPEOF), FUNCTION2(length, 1, 0, 0, lengthFunc, SQLITE_FUNC_LENGTH), FUNCTION(instr, 2, 0, 0, instrFunc ), FUNCTION(printf, -1, 0, 0, printfFunc ), FUNCTION(format, -1, 0, 0, printfFunc ), FUNCTION(unicode, 1, 0, 0, unicodeFunc ), FUNCTION(char, -1, 0, 0, charFunc ), FUNCTION(abs, 1, 0, 0, absFunc ), |
︙ | ︙ | |||
2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 | INLINE_FUNC(iif, 3, INLINEFUNC_iif, 0 ), }; #ifndef SQLITE_OMIT_ALTERTABLE sqlite3AlterFunctions(); #endif sqlite3WindowFunctions(); sqlite3RegisterDateTimeFunctions(); sqlite3InsertBuiltinFuncs(aBuiltinFunc, ArraySize(aBuiltinFunc)); #if 0 /* Enable to print out how the built-in functions are hashed */ { int i; FuncDef *p; for(i=0; i<SQLITE_FUNC_HASH_SZ; i++){ | > | 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 | INLINE_FUNC(iif, 3, INLINEFUNC_iif, 0 ), }; #ifndef SQLITE_OMIT_ALTERTABLE sqlite3AlterFunctions(); #endif sqlite3WindowFunctions(); sqlite3RegisterDateTimeFunctions(); sqlite3RegisterJsonFunctions(); sqlite3InsertBuiltinFuncs(aBuiltinFunc, ArraySize(aBuiltinFunc)); #if 0 /* Enable to print out how the built-in functions are hashed */ { int i; FuncDef *p; for(i=0; i<SQLITE_FUNC_HASH_SZ; i++){ |
︙ | ︙ |
Added src/json.c.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 | /* ** 2015-08-12 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ****************************************************************************** ** ** This SQLite JSON functions. ** ** This file began as an extension in ext/misc/json1.c in 2015. That ** extension proved so useful that it has now been moved into the core. ** ** For the time being, all JSON is stored as pure text. (We might add ** a JSONB type in the future which stores a binary encoding of JSON in ** a BLOB, but there is no support for JSONB in the current implementation. ** This implementation parses JSON text at 250 MB/s, so it is hard to see ** how JSONB might improve on that.) */ #ifndef SQLITE_OMIT_JSON #include "sqliteInt.h" /* ** Growing our own isspace() routine this way is twice as fast as ** the library isspace() function, resulting in a 7% overall performance ** increase for the parser. (Ubuntu14.10 gcc 4.8.4 x64 with -Os). */ static const char jsonIsSpace[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; #define fast_isspace(x) (jsonIsSpace[(unsigned char)x]) #if !defined(SQLITE_DEBUG) && !defined(SQLITE_COVERAGE_TEST) # define VVA(X) #else # define VVA(X) X #endif /* Objects */ typedef struct JsonString JsonString; typedef struct JsonNode JsonNode; typedef struct JsonParse JsonParse; /* An instance of this object represents a JSON string ** under construction. Really, this is a generic string accumulator ** that can be and is used to create strings other than JSON. */ struct JsonString { sqlite3_context *pCtx; /* Function context - put error messages here */ char *zBuf; /* Append JSON content here */ u64 nAlloc; /* Bytes of storage available in zBuf[] */ u64 nUsed; /* Bytes of zBuf[] currently used */ u8 bStatic; /* True if zBuf is static space */ u8 bErr; /* True if an error has been encountered */ char zSpace[100]; /* Initial static space */ }; /* JSON type values */ #define JSON_NULL 0 #define JSON_TRUE 1 #define JSON_FALSE 2 #define JSON_INT 3 #define JSON_REAL 4 #define JSON_STRING 5 #define JSON_ARRAY 6 #define JSON_OBJECT 7 /* The "subtype" set for JSON values */ #define JSON_SUBTYPE 74 /* Ascii for "J" */ /* ** Names of the various JSON types: */ static const char * const jsonType[] = { "null", "true", "false", "integer", "real", "text", "array", "object" }; /* Bit values for the JsonNode.jnFlag field */ #define JNODE_RAW 0x01 /* Content is raw, not JSON encoded */ #define JNODE_ESCAPE 0x02 /* Content is text with \ escapes */ #define JNODE_REMOVE 0x04 /* Do not output */ #define JNODE_REPLACE 0x08 /* Replace with JsonNode.u.iReplace */ #define JNODE_PATCH 0x10 /* Patch with JsonNode.u.pPatch */ #define JNODE_APPEND 0x20 /* More ARRAY/OBJECT entries at u.iAppend */ #define JNODE_LABEL 0x40 /* Is a label of an object */ /* A single node of parsed JSON */ struct JsonNode { u8 eType; /* One of the JSON_ type values */ u8 jnFlags; /* JNODE flags */ u8 eU; /* Which union element to use */ u32 n; /* Bytes of content, or number of sub-nodes */ union { const char *zJContent; /* 1: Content for INT, REAL, and STRING */ u32 iAppend; /* 2: More terms for ARRAY and OBJECT */ u32 iKey; /* 3: Key for ARRAY objects in json_tree() */ u32 iReplace; /* 4: Replacement content for JNODE_REPLACE */ JsonNode *pPatch; /* 5: Node chain of patch for JNODE_PATCH */ } u; }; /* A completely parsed JSON string */ struct JsonParse { u32 nNode; /* Number of slots of aNode[] used */ u32 nAlloc; /* Number of slots of aNode[] allocated */ JsonNode *aNode; /* Array of nodes containing the parse */ const char *zJson; /* Original JSON string */ u32 *aUp; /* Index of parent of each node */ u8 oom; /* Set to true if out of memory */ u8 nErr; /* Number of errors seen */ u16 iDepth; /* Nesting depth */ int nJson; /* Length of the zJson string in bytes */ u32 iHold; /* Replace cache line with the lowest iHold value */ }; /* ** Maximum nesting depth of JSON for this implementation. ** ** This limit is needed to avoid a stack overflow in the recursive ** descent parser. A depth of 2000 is far deeper than any sane JSON ** should go. */ #define JSON_MAX_DEPTH 2000 /************************************************************************** ** Utility routines for dealing with JsonString objects **************************************************************************/ /* Set the JsonString object to an empty string */ static void jsonZero(JsonString *p){ p->zBuf = p->zSpace; p->nAlloc = sizeof(p->zSpace); p->nUsed = 0; p->bStatic = 1; } /* Initialize the JsonString object */ static void jsonInit(JsonString *p, sqlite3_context *pCtx){ p->pCtx = pCtx; p->bErr = 0; jsonZero(p); } /* Free all allocated memory and reset the JsonString object back to its ** initial state. */ static void jsonReset(JsonString *p){ if( !p->bStatic ) sqlite3_free(p->zBuf); jsonZero(p); } /* Report an out-of-memory (OOM) condition */ static void jsonOom(JsonString *p){ p->bErr = 1; sqlite3_result_error_nomem(p->pCtx); jsonReset(p); } /* Enlarge pJson->zBuf so that it can hold at least N more bytes. ** Return zero on success. Return non-zero on an OOM error */ static int jsonGrow(JsonString *p, u32 N){ u64 nTotal = N<p->nAlloc ? p->nAlloc*2 : p->nAlloc+N+10; char *zNew; if( p->bStatic ){ if( p->bErr ) return 1; zNew = sqlite3_malloc64(nTotal); if( zNew==0 ){ jsonOom(p); return SQLITE_NOMEM; } memcpy(zNew, p->zBuf, (size_t)p->nUsed); p->zBuf = zNew; p->bStatic = 0; }else{ zNew = sqlite3_realloc64(p->zBuf, nTotal); if( zNew==0 ){ jsonOom(p); return SQLITE_NOMEM; } p->zBuf = zNew; } p->nAlloc = nTotal; return SQLITE_OK; } /* Append N bytes from zIn onto the end of the JsonString string. */ static void jsonAppendRaw(JsonString *p, const char *zIn, u32 N){ if( N==0 ) return; if( (N+p->nUsed >= p->nAlloc) && jsonGrow(p,N)!=0 ) return; memcpy(p->zBuf+p->nUsed, zIn, N); p->nUsed += N; } /* Append formatted text (not to exceed N bytes) to the JsonString. */ static void jsonPrintf(int N, JsonString *p, const char *zFormat, ...){ va_list ap; if( (p->nUsed + N >= p->nAlloc) && jsonGrow(p, N) ) return; va_start(ap, zFormat); sqlite3_vsnprintf(N, p->zBuf+p->nUsed, zFormat, ap); va_end(ap); p->nUsed += (int)strlen(p->zBuf+p->nUsed); } /* Append a single character */ static void jsonAppendChar(JsonString *p, char c){ if( p->nUsed>=p->nAlloc && jsonGrow(p,1)!=0 ) return; p->zBuf[p->nUsed++] = c; } /* Append a comma separator to the output buffer, if the previous ** character is not '[' or '{'. */ static void jsonAppendSeparator(JsonString *p){ char c; if( p->nUsed==0 ) return; c = p->zBuf[p->nUsed-1]; if( c!='[' && c!='{' ) jsonAppendChar(p, ','); } /* Append the N-byte string in zIn to the end of the JsonString string ** under construction. Enclose the string in "..." and escape ** any double-quotes or backslash characters contained within the ** string. */ static void jsonAppendString(JsonString *p, const char *zIn, u32 N){ u32 i; if( zIn==0 || ((N+p->nUsed+2 >= p->nAlloc) && jsonGrow(p,N+2)!=0) ) return; p->zBuf[p->nUsed++] = '"'; for(i=0; i<N; i++){ unsigned char c = ((unsigned const char*)zIn)[i]; if( c=='"' || c=='\\' ){ json_simple_escape: if( (p->nUsed+N+3-i > p->nAlloc) && jsonGrow(p,N+3-i)!=0 ) return; p->zBuf[p->nUsed++] = '\\'; }else if( c<=0x1f ){ static const char aSpecial[] = { 0, 0, 0, 0, 0, 0, 0, 0, 'b', 't', 'n', 0, 'f', 'r', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; assert( sizeof(aSpecial)==32 ); assert( aSpecial['\b']=='b' ); assert( aSpecial['\f']=='f' ); assert( aSpecial['\n']=='n' ); assert( aSpecial['\r']=='r' ); assert( aSpecial['\t']=='t' ); if( aSpecial[c] ){ c = aSpecial[c]; goto json_simple_escape; } if( (p->nUsed+N+7+i > p->nAlloc) && jsonGrow(p,N+7-i)!=0 ) return; p->zBuf[p->nUsed++] = '\\'; p->zBuf[p->nUsed++] = 'u'; p->zBuf[p->nUsed++] = '0'; p->zBuf[p->nUsed++] = '0'; p->zBuf[p->nUsed++] = '0' + (c>>4); c = "0123456789abcdef"[c&0xf]; } p->zBuf[p->nUsed++] = c; } p->zBuf[p->nUsed++] = '"'; assert( p->nUsed<p->nAlloc ); } /* ** Append a function parameter value to the JSON string under ** construction. */ static void jsonAppendValue( JsonString *p, /* Append to this JSON string */ sqlite3_value *pValue /* Value to append */ ){ switch( sqlite3_value_type(pValue) ){ case SQLITE_NULL: { jsonAppendRaw(p, "null", 4); break; } case SQLITE_INTEGER: case SQLITE_FLOAT: { const char *z = (const char*)sqlite3_value_text(pValue); u32 n = (u32)sqlite3_value_bytes(pValue); jsonAppendRaw(p, z, n); break; } case SQLITE_TEXT: { const char *z = (const char*)sqlite3_value_text(pValue); u32 n = (u32)sqlite3_value_bytes(pValue); if( sqlite3_value_subtype(pValue)==JSON_SUBTYPE ){ jsonAppendRaw(p, z, n); }else{ jsonAppendString(p, z, n); } break; } default: { if( p->bErr==0 ){ sqlite3_result_error(p->pCtx, "JSON cannot hold BLOB values", -1); p->bErr = 2; jsonReset(p); } break; } } } /* Make the JSON in p the result of the SQL function. */ static void jsonResult(JsonString *p){ if( p->bErr==0 ){ sqlite3_result_text64(p->pCtx, p->zBuf, p->nUsed, p->bStatic ? SQLITE_TRANSIENT : sqlite3_free, SQLITE_UTF8); jsonZero(p); } assert( p->bStatic ); } /************************************************************************** ** Utility routines for dealing with JsonNode and JsonParse objects **************************************************************************/ /* ** Return the number of consecutive JsonNode slots need to represent ** the parsed JSON at pNode. The minimum answer is 1. For ARRAY and ** OBJECT types, the number might be larger. ** ** Appended elements are not counted. The value returned is the number ** by which the JsonNode counter should increment in order to go to the ** next peer value. */ static u32 jsonNodeSize(JsonNode *pNode){ return pNode->eType>=JSON_ARRAY ? pNode->n+1 : 1; } /* ** Reclaim all memory allocated by a JsonParse object. But do not ** delete the JsonParse object itself. */ static void jsonParseReset(JsonParse *pParse){ sqlite3_free(pParse->aNode); pParse->aNode = 0; pParse->nNode = 0; pParse->nAlloc = 0; sqlite3_free(pParse->aUp); pParse->aUp = 0; } /* ** Free a JsonParse object that was obtained from sqlite3_malloc(). */ static void jsonParseFree(JsonParse *pParse){ jsonParseReset(pParse); sqlite3_free(pParse); } /* ** Convert the JsonNode pNode into a pure JSON string and ** append to pOut. Subsubstructure is also included. Return ** the number of JsonNode objects that are encoded. */ static void jsonRenderNode( JsonNode *pNode, /* The node to render */ JsonString *pOut, /* Write JSON here */ sqlite3_value **aReplace /* Replacement values */ ){ assert( pNode!=0 ); if( pNode->jnFlags & (JNODE_REPLACE|JNODE_PATCH) ){ if( (pNode->jnFlags & JNODE_REPLACE)!=0 && ALWAYS(aReplace!=0) ){ assert( pNode->eU==4 ); jsonAppendValue(pOut, aReplace[pNode->u.iReplace]); return; } assert( pNode->eU==5 ); pNode = pNode->u.pPatch; } switch( pNode->eType ){ default: { assert( pNode->eType==JSON_NULL ); jsonAppendRaw(pOut, "null", 4); break; } case JSON_TRUE: { jsonAppendRaw(pOut, "true", 4); break; } case JSON_FALSE: { jsonAppendRaw(pOut, "false", 5); break; } case JSON_STRING: { if( pNode->jnFlags & JNODE_RAW ){ assert( pNode->eU==1 ); jsonAppendString(pOut, pNode->u.zJContent, pNode->n); break; } /* no break */ deliberate_fall_through } case JSON_REAL: case JSON_INT: { assert( pNode->eU==1 ); jsonAppendRaw(pOut, pNode->u.zJContent, pNode->n); break; } case JSON_ARRAY: { u32 j = 1; jsonAppendChar(pOut, '['); for(;;){ while( j<=pNode->n ){ if( (pNode[j].jnFlags & JNODE_REMOVE)==0 ){ jsonAppendSeparator(pOut); jsonRenderNode(&pNode[j], pOut, aReplace); } j += jsonNodeSize(&pNode[j]); } if( (pNode->jnFlags & JNODE_APPEND)==0 ) break; assert( pNode->eU==2 ); pNode = &pNode[pNode->u.iAppend]; j = 1; } jsonAppendChar(pOut, ']'); break; } case JSON_OBJECT: { u32 j = 1; jsonAppendChar(pOut, '{'); for(;;){ while( j<=pNode->n ){ if( (pNode[j+1].jnFlags & JNODE_REMOVE)==0 ){ jsonAppendSeparator(pOut); jsonRenderNode(&pNode[j], pOut, aReplace); jsonAppendChar(pOut, ':'); jsonRenderNode(&pNode[j+1], pOut, aReplace); } j += 1 + jsonNodeSize(&pNode[j+1]); } if( (pNode->jnFlags & JNODE_APPEND)==0 ) break; assert( pNode->eU==2 ); pNode = &pNode[pNode->u.iAppend]; j = 1; } jsonAppendChar(pOut, '}'); break; } } } /* ** Return a JsonNode and all its descendents as a JSON string. */ static void jsonReturnJson( JsonNode *pNode, /* Node to return */ sqlite3_context *pCtx, /* Return value for this function */ sqlite3_value **aReplace /* Array of replacement values */ ){ JsonString s; jsonInit(&s, pCtx); jsonRenderNode(pNode, &s, aReplace); jsonResult(&s); sqlite3_result_subtype(pCtx, JSON_SUBTYPE); } /* ** Translate a single byte of Hex into an integer. ** This routine only works if h really is a valid hexadecimal ** character: 0..9a..fA..F */ static u8 jsonHexToInt(int h){ assert( (h>='0' && h<='9') || (h>='a' && h<='f') || (h>='A' && h<='F') ); #ifdef SQLITE_EBCDIC h += 9*(1&~(h>>4)); #else h += 9*(1&(h>>6)); #endif return (u8)(h & 0xf); } /* ** Convert a 4-byte hex string into an integer */ static u32 jsonHexToInt4(const char *z){ u32 v; assert( sqlite3Isxdigit(z[0]) ); assert( sqlite3Isxdigit(z[1]) ); assert( sqlite3Isxdigit(z[2]) ); assert( sqlite3Isxdigit(z[3]) ); v = (jsonHexToInt(z[0])<<12) + (jsonHexToInt(z[1])<<8) + (jsonHexToInt(z[2])<<4) + jsonHexToInt(z[3]); return v; } /* ** Make the JsonNode the return value of the function. */ static void jsonReturn( JsonNode *pNode, /* Node to return */ sqlite3_context *pCtx, /* Return value for this function */ sqlite3_value **aReplace /* Array of replacement values */ ){ switch( pNode->eType ){ default: { assert( pNode->eType==JSON_NULL ); sqlite3_result_null(pCtx); break; } case JSON_TRUE: { sqlite3_result_int(pCtx, 1); break; } case JSON_FALSE: { sqlite3_result_int(pCtx, 0); break; } case JSON_INT: { sqlite3_int64 i = 0; const char *z; assert( pNode->eU==1 ); z = pNode->u.zJContent; if( z[0]=='-' ){ z++; } while( z[0]>='0' && z[0]<='9' ){ unsigned v = *(z++) - '0'; if( i>=LARGEST_INT64/10 ){ if( i>LARGEST_INT64/10 ) goto int_as_real; if( z[0]>='0' && z[0]<='9' ) goto int_as_real; if( v==9 ) goto int_as_real; if( v==8 ){ if( pNode->u.zJContent[0]=='-' ){ sqlite3_result_int64(pCtx, SMALLEST_INT64); goto int_done; }else{ goto int_as_real; } } } i = i*10 + v; } if( pNode->u.zJContent[0]=='-' ){ i = -i; } sqlite3_result_int64(pCtx, i); int_done: break; int_as_real: ; /* no break */ deliberate_fall_through } case JSON_REAL: { double r; #ifdef SQLITE_AMALGAMATION const char *z; assert( pNode->eU==1 ); z = pNode->u.zJContent; sqlite3AtoF(z, &r, sqlite3Strlen30(z), SQLITE_UTF8); #else assert( pNode->eU==1 ); r = strtod(pNode->u.zJContent, 0); #endif sqlite3_result_double(pCtx, r); break; } case JSON_STRING: { #if 0 /* Never happens because JNODE_RAW is only set by json_set(), ** json_insert() and json_replace() and those routines do not ** call jsonReturn() */ if( pNode->jnFlags & JNODE_RAW ){ assert( pNode->eU==1 ); sqlite3_result_text(pCtx, pNode->u.zJContent, pNode->n, SQLITE_TRANSIENT); }else #endif assert( (pNode->jnFlags & JNODE_RAW)==0 ); if( (pNode->jnFlags & JNODE_ESCAPE)==0 ){ /* JSON formatted without any backslash-escapes */ assert( pNode->eU==1 ); sqlite3_result_text(pCtx, pNode->u.zJContent+1, pNode->n-2, SQLITE_TRANSIENT); }else{ /* Translate JSON formatted string into raw text */ u32 i; u32 n = pNode->n; const char *z; char *zOut; u32 j; assert( pNode->eU==1 ); z = pNode->u.zJContent; zOut = sqlite3_malloc( n+1 ); if( zOut==0 ){ sqlite3_result_error_nomem(pCtx); break; } for(i=1, j=0; i<n-1; i++){ char c = z[i]; if( c!='\\' ){ zOut[j++] = c; }else{ c = z[++i]; if( c=='u' ){ u32 v = jsonHexToInt4(z+i+1); i += 4; if( v==0 ) break; if( v<=0x7f ){ zOut[j++] = (char)v; }else if( v<=0x7ff ){ zOut[j++] = (char)(0xc0 | (v>>6)); zOut[j++] = 0x80 | (v&0x3f); }else{ u32 vlo; if( (v&0xfc00)==0xd800 && i<n-6 && z[i+1]=='\\' && z[i+2]=='u' && ((vlo = jsonHexToInt4(z+i+3))&0xfc00)==0xdc00 ){ /* We have a surrogate pair */ v = ((v&0x3ff)<<10) + (vlo&0x3ff) + 0x10000; i += 6; zOut[j++] = 0xf0 | (v>>18); zOut[j++] = 0x80 | ((v>>12)&0x3f); zOut[j++] = 0x80 | ((v>>6)&0x3f); zOut[j++] = 0x80 | (v&0x3f); }else{ zOut[j++] = 0xe0 | (v>>12); zOut[j++] = 0x80 | ((v>>6)&0x3f); zOut[j++] = 0x80 | (v&0x3f); } } }else{ if( c=='b' ){ c = '\b'; }else if( c=='f' ){ c = '\f'; }else if( c=='n' ){ c = '\n'; }else if( c=='r' ){ c = '\r'; }else if( c=='t' ){ c = '\t'; } zOut[j++] = c; } } } zOut[j] = 0; sqlite3_result_text(pCtx, zOut, j, sqlite3_free); } break; } case JSON_ARRAY: case JSON_OBJECT: { jsonReturnJson(pNode, pCtx, aReplace); break; } } } /* Forward reference */ static int jsonParseAddNode(JsonParse*,u32,u32,const char*); /* ** A macro to hint to the compiler that a function should not be ** inlined. */ #if defined(__GNUC__) # define JSON_NOINLINE __attribute__((noinline)) #elif defined(_MSC_VER) && _MSC_VER>=1310 # define JSON_NOINLINE __declspec(noinline) #else # define JSON_NOINLINE #endif static JSON_NOINLINE int jsonParseAddNodeExpand( JsonParse *pParse, /* Append the node to this object */ u32 eType, /* Node type */ u32 n, /* Content size or sub-node count */ const char *zContent /* Content */ ){ u32 nNew; JsonNode *pNew; assert( pParse->nNode>=pParse->nAlloc ); if( pParse->oom ) return -1; nNew = pParse->nAlloc*2 + 10; pNew = sqlite3_realloc64(pParse->aNode, sizeof(JsonNode)*nNew); if( pNew==0 ){ pParse->oom = 1; return -1; } pParse->nAlloc = nNew; pParse->aNode = pNew; assert( pParse->nNode<pParse->nAlloc ); return jsonParseAddNode(pParse, eType, n, zContent); } /* ** Create a new JsonNode instance based on the arguments and append that ** instance to the JsonParse. Return the index in pParse->aNode[] of the ** new node, or -1 if a memory allocation fails. */ static int jsonParseAddNode( JsonParse *pParse, /* Append the node to this object */ u32 eType, /* Node type */ u32 n, /* Content size or sub-node count */ const char *zContent /* Content */ ){ JsonNode *p; if( pParse->aNode==0 || pParse->nNode>=pParse->nAlloc ){ return jsonParseAddNodeExpand(pParse, eType, n, zContent); } p = &pParse->aNode[pParse->nNode]; p->eType = (u8)eType; p->jnFlags = 0; VVA( p->eU = zContent ? 1 : 0 ); p->n = n; p->u.zJContent = zContent; return pParse->nNode++; } /* ** Return true if z[] begins with 4 (or more) hexadecimal digits */ static int jsonIs4Hex(const char *z){ int i; for(i=0; i<4; i++) if( !sqlite3Isxdigit(z[i]) ) return 0; return 1; } /* ** Parse a single JSON value which begins at pParse->zJson[i]. Return the ** index of the first character past the end of the value parsed. ** ** Return negative for a syntax error. Special cases: return -2 if the ** first non-whitespace character is '}' and return -3 if the first ** non-whitespace character is ']'. */ static int jsonParseValue(JsonParse *pParse, u32 i){ char c; u32 j; int iThis; int x; JsonNode *pNode; const char *z = pParse->zJson; while( fast_isspace(z[i]) ){ i++; } if( (c = z[i])=='{' ){ /* Parse object */ iThis = jsonParseAddNode(pParse, JSON_OBJECT, 0, 0); if( iThis<0 ) return -1; for(j=i+1;;j++){ while( fast_isspace(z[j]) ){ j++; } if( ++pParse->iDepth > JSON_MAX_DEPTH ) return -1; x = jsonParseValue(pParse, j); if( x<0 ){ pParse->iDepth--; if( x==(-2) && pParse->nNode==(u32)iThis+1 ) return j+1; return -1; } if( pParse->oom ) return -1; pNode = &pParse->aNode[pParse->nNode-1]; if( pNode->eType!=JSON_STRING ) return -1; pNode->jnFlags |= JNODE_LABEL; j = x; while( fast_isspace(z[j]) ){ j++; } if( z[j]!=':' ) return -1; j++; x = jsonParseValue(pParse, j); pParse->iDepth--; if( x<0 ) return -1; j = x; while( fast_isspace(z[j]) ){ j++; } c = z[j]; if( c==',' ) continue; if( c!='}' ) return -1; break; } pParse->aNode[iThis].n = pParse->nNode - (u32)iThis - 1; return j+1; }else if( c=='[' ){ /* Parse array */ iThis = jsonParseAddNode(pParse, JSON_ARRAY, 0, 0); if( iThis<0 ) return -1; memset(&pParse->aNode[iThis].u, 0, sizeof(pParse->aNode[iThis].u)); for(j=i+1;;j++){ while( fast_isspace(z[j]) ){ j++; } if( ++pParse->iDepth > JSON_MAX_DEPTH ) return -1; x = jsonParseValue(pParse, j); pParse->iDepth--; if( x<0 ){ if( x==(-3) && pParse->nNode==(u32)iThis+1 ) return j+1; return -1; } j = x; while( fast_isspace(z[j]) ){ j++; } c = z[j]; if( c==',' ) continue; if( c!=']' ) return -1; break; } pParse->aNode[iThis].n = pParse->nNode - (u32)iThis - 1; return j+1; }else if( c=='"' ){ /* Parse string */ u8 jnFlags = 0; j = i+1; for(;;){ c = z[j]; if( (c & ~0x1f)==0 ){ /* Control characters are not allowed in strings */ return -1; } if( c=='\\' ){ c = z[++j]; if( c=='"' || c=='\\' || c=='/' || c=='b' || c=='f' || c=='n' || c=='r' || c=='t' || (c=='u' && jsonIs4Hex(z+j+1)) ){ jnFlags = JNODE_ESCAPE; }else{ return -1; } }else if( c=='"' ){ break; } j++; } jsonParseAddNode(pParse, JSON_STRING, j+1-i, &z[i]); if( !pParse->oom ) pParse->aNode[pParse->nNode-1].jnFlags = jnFlags; return j+1; }else if( c=='n' && strncmp(z+i,"null",4)==0 && !sqlite3Isalnum(z[i+4]) ){ jsonParseAddNode(pParse, JSON_NULL, 0, 0); return i+4; }else if( c=='t' && strncmp(z+i,"true",4)==0 && !sqlite3Isalnum(z[i+4]) ){ jsonParseAddNode(pParse, JSON_TRUE, 0, 0); return i+4; }else if( c=='f' && strncmp(z+i,"false",5)==0 && !sqlite3Isalnum(z[i+5]) ){ jsonParseAddNode(pParse, JSON_FALSE, 0, 0); return i+5; }else if( c=='-' || (c>='0' && c<='9') ){ /* Parse number */ u8 seenDP = 0; u8 seenE = 0; assert( '-' < '0' ); if( c<='0' ){ j = c=='-' ? i+1 : i; if( z[j]=='0' && z[j+1]>='0' && z[j+1]<='9' ) return -1; } j = i+1; for(;; j++){ c = z[j]; if( c>='0' && c<='9' ) continue; if( c=='.' ){ if( z[j-1]=='-' ) return -1; if( seenDP ) return -1; seenDP = 1; continue; } if( c=='e' || c=='E' ){ if( z[j-1]<'0' ) return -1; if( seenE ) return -1; seenDP = seenE = 1; c = z[j+1]; if( c=='+' || c=='-' ){ j++; c = z[j+1]; } if( c<'0' || c>'9' ) return -1; continue; } break; } if( z[j-1]<'0' ) return -1; jsonParseAddNode(pParse, seenDP ? JSON_REAL : JSON_INT, j - i, &z[i]); return j; }else if( c=='}' ){ return -2; /* End of {...} */ }else if( c==']' ){ return -3; /* End of [...] */ }else if( c==0 ){ return 0; /* End of file */ }else{ return -1; /* Syntax error */ } } /* ** Parse a complete JSON string. Return 0 on success or non-zero if there ** are any errors. If an error occurs, free all memory associated with ** pParse. ** ** pParse is uninitialized when this routine is called. */ static int jsonParse( JsonParse *pParse, /* Initialize and fill this JsonParse object */ sqlite3_context *pCtx, /* Report errors here */ const char *zJson /* Input JSON text to be parsed */ ){ int i; memset(pParse, 0, sizeof(*pParse)); if( zJson==0 ) return 1; pParse->zJson = zJson; i = jsonParseValue(pParse, 0); if( pParse->oom ) i = -1; if( i>0 ){ assert( pParse->iDepth==0 ); while( fast_isspace(zJson[i]) ) i++; if( zJson[i] ) i = -1; } if( i<=0 ){ if( pCtx!=0 ){ if( pParse->oom ){ sqlite3_result_error_nomem(pCtx); }else{ sqlite3_result_error(pCtx, "malformed JSON", -1); } } jsonParseReset(pParse); return 1; } return 0; } /* Mark node i of pParse as being a child of iParent. Call recursively ** to fill in all the descendants of node i. */ static void jsonParseFillInParentage(JsonParse *pParse, u32 i, u32 iParent){ JsonNode *pNode = &pParse->aNode[i]; u32 j; pParse->aUp[i] = iParent; switch( pNode->eType ){ case JSON_ARRAY: { for(j=1; j<=pNode->n; j += jsonNodeSize(pNode+j)){ jsonParseFillInParentage(pParse, i+j, i); } break; } case JSON_OBJECT: { for(j=1; j<=pNode->n; j += jsonNodeSize(pNode+j+1)+1){ pParse->aUp[i+j] = i; jsonParseFillInParentage(pParse, i+j+1, i); } break; } default: { break; } } } /* ** Compute the parentage of all nodes in a completed parse. */ static int jsonParseFindParents(JsonParse *pParse){ u32 *aUp; assert( pParse->aUp==0 ); aUp = pParse->aUp = sqlite3_malloc64( sizeof(u32)*pParse->nNode ); if( aUp==0 ){ pParse->oom = 1; return SQLITE_NOMEM; } jsonParseFillInParentage(pParse, 0, 0); return SQLITE_OK; } /* ** Magic number used for the JSON parse cache in sqlite3_get_auxdata() */ #define JSON_CACHE_ID (-429938) /* First cache entry */ #define JSON_CACHE_SZ 4 /* Max number of cache entries */ /* ** Obtain a complete parse of the JSON found in the first argument ** of the argv array. Use the sqlite3_get_auxdata() cache for this ** parse if it is available. If the cache is not available or if it ** is no longer valid, parse the JSON again and return the new parse, ** and also register the new parse so that it will be available for ** future sqlite3_get_auxdata() calls. */ static JsonParse *jsonParseCached( sqlite3_context *pCtx, sqlite3_value **argv, sqlite3_context *pErrCtx ){ const char *zJson = (const char*)sqlite3_value_text(argv[0]); int nJson = sqlite3_value_bytes(argv[0]); JsonParse *p; JsonParse *pMatch = 0; int iKey; int iMinKey = 0; u32 iMinHold = 0xffffffff; u32 iMaxHold = 0; if( zJson==0 ) return 0; for(iKey=0; iKey<JSON_CACHE_SZ; iKey++){ p = (JsonParse*)sqlite3_get_auxdata(pCtx, JSON_CACHE_ID+iKey); if( p==0 ){ iMinKey = iKey; break; } if( pMatch==0 && p->nJson==nJson && memcmp(p->zJson,zJson,nJson)==0 ){ p->nErr = 0; pMatch = p; }else if( p->iHold<iMinHold ){ iMinHold = p->iHold; iMinKey = iKey; } if( p->iHold>iMaxHold ){ iMaxHold = p->iHold; } } if( pMatch ){ pMatch->nErr = 0; pMatch->iHold = iMaxHold+1; return pMatch; } p = sqlite3_malloc64( sizeof(*p) + nJson + 1 ); if( p==0 ){ sqlite3_result_error_nomem(pCtx); return 0; } memset(p, 0, sizeof(*p)); p->zJson = (char*)&p[1]; memcpy((char*)p->zJson, zJson, nJson+1); if( jsonParse(p, pErrCtx, p->zJson) ){ sqlite3_free(p); return 0; } p->nJson = nJson; p->iHold = iMaxHold+1; sqlite3_set_auxdata(pCtx, JSON_CACHE_ID+iMinKey, p, (void(*)(void*))jsonParseFree); return (JsonParse*)sqlite3_get_auxdata(pCtx, JSON_CACHE_ID+iMinKey); } /* ** Compare the OBJECT label at pNode against zKey,nKey. Return true on ** a match. */ static int jsonLabelCompare(JsonNode *pNode, const char *zKey, u32 nKey){ assert( pNode->eU==1 ); if( pNode->jnFlags & JNODE_RAW ){ if( pNode->n!=nKey ) return 0; return strncmp(pNode->u.zJContent, zKey, nKey)==0; }else{ if( pNode->n!=nKey+2 ) return 0; return strncmp(pNode->u.zJContent+1, zKey, nKey)==0; } } /* forward declaration */ static JsonNode *jsonLookupAppend(JsonParse*,const char*,int*,const char**); /* ** Search along zPath to find the node specified. Return a pointer ** to that node, or NULL if zPath is malformed or if there is no such ** node. ** ** If pApnd!=0, then try to append new nodes to complete zPath if it is ** possible to do so and if no existing node corresponds to zPath. If ** new nodes are appended *pApnd is set to 1. */ static JsonNode *jsonLookupStep( JsonParse *pParse, /* The JSON to search */ u32 iRoot, /* Begin the search at this node */ const char *zPath, /* The path to search */ int *pApnd, /* Append nodes to complete path if not NULL */ const char **pzErr /* Make *pzErr point to any syntax error in zPath */ ){ u32 i, j, nKey; const char *zKey; JsonNode *pRoot = &pParse->aNode[iRoot]; if( zPath[0]==0 ) return pRoot; if( pRoot->jnFlags & JNODE_REPLACE ) return 0; if( zPath[0]=='.' ){ if( pRoot->eType!=JSON_OBJECT ) return 0; zPath++; if( zPath[0]=='"' ){ zKey = zPath + 1; for(i=1; zPath[i] && zPath[i]!='"'; i++){} nKey = i-1; if( zPath[i] ){ i++; }else{ *pzErr = zPath; return 0; } }else{ zKey = zPath; for(i=0; zPath[i] && zPath[i]!='.' && zPath[i]!='['; i++){} nKey = i; } if( nKey==0 ){ *pzErr = zPath; return 0; } j = 1; for(;;){ while( j<=pRoot->n ){ if( jsonLabelCompare(pRoot+j, zKey, nKey) ){ return jsonLookupStep(pParse, iRoot+j+1, &zPath[i], pApnd, pzErr); } j++; j += jsonNodeSize(&pRoot[j]); } if( (pRoot->jnFlags & JNODE_APPEND)==0 ) break; assert( pRoot->eU==2 ); iRoot += pRoot->u.iAppend; pRoot = &pParse->aNode[iRoot]; j = 1; } if( pApnd ){ u32 iStart, iLabel; JsonNode *pNode; iStart = jsonParseAddNode(pParse, JSON_OBJECT, 2, 0); iLabel = jsonParseAddNode(pParse, JSON_STRING, nKey, zKey); zPath += i; pNode = jsonLookupAppend(pParse, zPath, pApnd, pzErr); if( pParse->oom ) return 0; if( pNode ){ pRoot = &pParse->aNode[iRoot]; assert( pRoot->eU==0 ); pRoot->u.iAppend = iStart - iRoot; pRoot->jnFlags |= JNODE_APPEND; VVA( pRoot->eU = 2 ); pParse->aNode[iLabel].jnFlags |= JNODE_RAW; } return pNode; } }else if( zPath[0]=='[' ){ i = 0; j = 1; while( sqlite3Isdigit(zPath[j]) ){ i = i*10 + zPath[j] - '0'; j++; } if( j<2 || zPath[j]!=']' ){ if( zPath[1]=='#' ){ JsonNode *pBase = pRoot; int iBase = iRoot; if( pRoot->eType!=JSON_ARRAY ) return 0; for(;;){ while( j<=pBase->n ){ if( (pBase[j].jnFlags & JNODE_REMOVE)==0 ) i++; j += jsonNodeSize(&pBase[j]); } if( (pBase->jnFlags & JNODE_APPEND)==0 ) break; assert( pBase->eU==2 ); iBase += pBase->u.iAppend; pBase = &pParse->aNode[iBase]; j = 1; } j = 2; if( zPath[2]=='-' && sqlite3Isdigit(zPath[3]) ){ unsigned int x = 0; j = 3; do{ x = x*10 + zPath[j] - '0'; j++; }while( sqlite3Isdigit(zPath[j]) ); if( x>i ) return 0; i -= x; } if( zPath[j]!=']' ){ *pzErr = zPath; return 0; } }else{ *pzErr = zPath; return 0; } } if( pRoot->eType!=JSON_ARRAY ) return 0; zPath += j + 1; j = 1; for(;;){ while( j<=pRoot->n && (i>0 || (pRoot[j].jnFlags & JNODE_REMOVE)!=0) ){ if( (pRoot[j].jnFlags & JNODE_REMOVE)==0 ) i--; j += jsonNodeSize(&pRoot[j]); } if( (pRoot->jnFlags & JNODE_APPEND)==0 ) break; assert( pRoot->eU==2 ); iRoot += pRoot->u.iAppend; pRoot = &pParse->aNode[iRoot]; j = 1; } if( j<=pRoot->n ){ return jsonLookupStep(pParse, iRoot+j, zPath, pApnd, pzErr); } if( i==0 && pApnd ){ u32 iStart; JsonNode *pNode; iStart = jsonParseAddNode(pParse, JSON_ARRAY, 1, 0); pNode = jsonLookupAppend(pParse, zPath, pApnd, pzErr); if( pParse->oom ) return 0; if( pNode ){ pRoot = &pParse->aNode[iRoot]; assert( pRoot->eU==0 ); pRoot->u.iAppend = iStart - iRoot; pRoot->jnFlags |= JNODE_APPEND; VVA( pRoot->eU = 2 ); } return pNode; } }else{ *pzErr = zPath; } return 0; } /* ** Append content to pParse that will complete zPath. Return a pointer ** to the inserted node, or return NULL if the append fails. */ static JsonNode *jsonLookupAppend( JsonParse *pParse, /* Append content to the JSON parse */ const char *zPath, /* Description of content to append */ int *pApnd, /* Set this flag to 1 */ const char **pzErr /* Make this point to any syntax error */ ){ *pApnd = 1; if( zPath[0]==0 ){ jsonParseAddNode(pParse, JSON_NULL, 0, 0); return pParse->oom ? 0 : &pParse->aNode[pParse->nNode-1]; } if( zPath[0]=='.' ){ jsonParseAddNode(pParse, JSON_OBJECT, 0, 0); }else if( strncmp(zPath,"[0]",3)==0 ){ jsonParseAddNode(pParse, JSON_ARRAY, 0, 0); }else{ return 0; } if( pParse->oom ) return 0; return jsonLookupStep(pParse, pParse->nNode-1, zPath, pApnd, pzErr); } /* ** Return the text of a syntax error message on a JSON path. Space is ** obtained from sqlite3_malloc(). */ static char *jsonPathSyntaxError(const char *zErr){ return sqlite3_mprintf("JSON path error near '%q'", zErr); } /* ** Do a node lookup using zPath. Return a pointer to the node on success. ** Return NULL if not found or if there is an error. ** ** On an error, write an error message into pCtx and increment the ** pParse->nErr counter. ** ** If pApnd!=NULL then try to append missing nodes and set *pApnd = 1 if ** nodes are appended. */ static JsonNode *jsonLookup( JsonParse *pParse, /* The JSON to search */ const char *zPath, /* The path to search */ int *pApnd, /* Append nodes to complete path if not NULL */ sqlite3_context *pCtx /* Report errors here, if not NULL */ ){ const char *zErr = 0; JsonNode *pNode = 0; char *zMsg; if( zPath==0 ) return 0; if( zPath[0]!='$' ){ zErr = zPath; goto lookup_err; } zPath++; pNode = jsonLookupStep(pParse, 0, zPath, pApnd, &zErr); if( zErr==0 ) return pNode; lookup_err: pParse->nErr++; assert( zErr!=0 && pCtx!=0 ); zMsg = jsonPathSyntaxError(zErr); if( zMsg ){ sqlite3_result_error(pCtx, zMsg, -1); sqlite3_free(zMsg); }else{ sqlite3_result_error_nomem(pCtx); } return 0; } /* ** Report the wrong number of arguments for json_insert(), json_replace() ** or json_set(). */ static void jsonWrongNumArgs( sqlite3_context *pCtx, const char *zFuncName ){ char *zMsg = sqlite3_mprintf("json_%s() needs an odd number of arguments", zFuncName); sqlite3_result_error(pCtx, zMsg, -1); sqlite3_free(zMsg); } /* ** Mark all NULL entries in the Object passed in as JNODE_REMOVE. */ static void jsonRemoveAllNulls(JsonNode *pNode){ int i, n; assert( pNode->eType==JSON_OBJECT ); n = pNode->n; for(i=2; i<=n; i += jsonNodeSize(&pNode[i])+1){ switch( pNode[i].eType ){ case JSON_NULL: pNode[i].jnFlags |= JNODE_REMOVE; break; case JSON_OBJECT: jsonRemoveAllNulls(&pNode[i]); break; } } } /**************************************************************************** ** SQL functions used for testing and debugging ****************************************************************************/ #ifdef SQLITE_DEBUG /* ** The json_parse(JSON) function returns a string which describes ** a parse of the JSON provided. Or it returns NULL if JSON is not ** well-formed. */ static void jsonParseFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonString s; /* Output string - not real JSON */ JsonParse x; /* The parse */ u32 i; assert( argc==1 ); if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return; jsonParseFindParents(&x); jsonInit(&s, ctx); for(i=0; i<x.nNode; i++){ const char *zType; if( x.aNode[i].jnFlags & JNODE_LABEL ){ assert( x.aNode[i].eType==JSON_STRING ); zType = "label"; }else{ zType = jsonType[x.aNode[i].eType]; } jsonPrintf(100, &s,"node %3u: %7s n=%-4d up=%-4d", i, zType, x.aNode[i].n, x.aUp[i]); assert( x.aNode[i].eU==0 || x.aNode[i].eU==1 ); if( x.aNode[i].u.zJContent!=0 ){ assert( x.aNode[i].eU==1 ); jsonAppendRaw(&s, " ", 1); jsonAppendRaw(&s, x.aNode[i].u.zJContent, x.aNode[i].n); }else{ assert( x.aNode[i].eU==0 ); } jsonAppendRaw(&s, "\n", 1); } jsonParseReset(&x); jsonResult(&s); } /* ** The json_test1(JSON) function return true (1) if the input is JSON ** text generated by another json function. It returns (0) if the input ** is not known to be JSON. */ static void jsonTest1Func( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ UNUSED_PARAMETER(argc); sqlite3_result_int(ctx, sqlite3_value_subtype(argv[0])==JSON_SUBTYPE); } #endif /* SQLITE_DEBUG */ /**************************************************************************** ** Scalar SQL function implementations ****************************************************************************/ /* ** Implementation of the json_QUOTE(VALUE) function. Return a JSON value ** corresponding to the SQL value input. Mostly this means putting ** double-quotes around strings and returning the unquoted string "null" ** when given a NULL input. */ static void jsonQuoteFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonString jx; UNUSED_PARAMETER(argc); jsonInit(&jx, ctx); jsonAppendValue(&jx, argv[0]); jsonResult(&jx); sqlite3_result_subtype(ctx, JSON_SUBTYPE); } /* ** Implementation of the json_array(VALUE,...) function. Return a JSON ** array that contains all values given in arguments. Or if any argument ** is a BLOB, throw an error. */ static void jsonArrayFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ int i; JsonString jx; jsonInit(&jx, ctx); jsonAppendChar(&jx, '['); for(i=0; i<argc; i++){ jsonAppendSeparator(&jx); jsonAppendValue(&jx, argv[i]); } jsonAppendChar(&jx, ']'); jsonResult(&jx); sqlite3_result_subtype(ctx, JSON_SUBTYPE); } /* ** json_array_length(JSON) ** json_array_length(JSON, PATH) ** ** Return the number of elements in the top-level JSON array. ** Return 0 if the input is not a well-formed JSON array. */ static void jsonArrayLengthFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonParse *p; /* The parse */ sqlite3_int64 n = 0; u32 i; JsonNode *pNode; p = jsonParseCached(ctx, argv, ctx); if( p==0 ) return; assert( p->nNode ); if( argc==2 ){ const char *zPath = (const char*)sqlite3_value_text(argv[1]); pNode = jsonLookup(p, zPath, 0, ctx); }else{ pNode = p->aNode; } if( pNode==0 ){ return; } if( pNode->eType==JSON_ARRAY ){ assert( (pNode->jnFlags & JNODE_APPEND)==0 ); for(i=1; i<=pNode->n; n++){ i += jsonNodeSize(&pNode[i]); } } sqlite3_result_int64(ctx, n); } /* ** Bit values for the flags passed into jsonExtractFunc() or ** jsonSetFunc() via the user-data value. */ #define JSON_JSON 0x01 /* Result is always JSON */ #define JSON_SQL 0x02 /* Result is always SQL */ #define JSON_ABPATH 0x03 /* Allow abbreviated JSON path specs */ #define JSON_ISSET 0x04 /* json_set(), not json_insert() */ /* ** json_extract(JSON, PATH, ...) ** "->"(JSON,PATH) ** "->>"(JSON,PATH) ** ** Return the element described by PATH. Return NULL if that PATH element ** is not found. ** ** If JSON_JSON is set or if more that one PATH argument is supplied then ** always return a JSON representation of the result. If JSON_SQL is set, ** then always return an SQL representation of the result. If neither flag ** is present and argc==2, then return JSON for objects and arrays and SQL ** for all other values. ** ** When multiple PATH arguments are supplied, the result is a JSON array ** containing the result of each PATH. ** ** Abbreviated JSON path expressions are allows if JSON_ABPATH, for ** compatibility with PG. */ static void jsonExtractFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonParse *p; /* The parse */ JsonNode *pNode; const char *zPath; int flags = SQLITE_PTR_TO_INT(sqlite3_user_data(ctx)); JsonString jx; if( argc<2 ) return; p = jsonParseCached(ctx, argv, ctx); if( p==0 ) return; if( argc==2 ){ /* With a single PATH argument */ zPath = (const char*)sqlite3_value_text(argv[1]); if( zPath==0 ) return; if( flags & JSON_ABPATH ){ if( zPath[0]!='$' ){ /* The -> and ->> operators accept abbreviated PATH arguments. This ** is mostly for compatibility with PostgreSQL, but also for ** convenience. ** ** NUMBER ==> $[NUMBER] // PG compatible ** LABEL ==> $.LABEL // PG compatible ** [NUMBER] ==> $[NUMBER] // Not PG. Purely for convenience */ jsonInit(&jx, ctx); if( sqlite3Isdigit(zPath[0]) ){ jsonAppendRaw(&jx, "$[", 2); jsonAppendRaw(&jx, zPath, (int)strlen(zPath)); jsonAppendRaw(&jx, "]", 2); }else{ jsonAppendRaw(&jx, "$.", 1 + (zPath[0]!='[')); jsonAppendRaw(&jx, zPath, (int)strlen(zPath)); jsonAppendChar(&jx, 0); } pNode = jx.bErr ? 0 : jsonLookup(p, jx.zBuf, 0, ctx); jsonReset(&jx); }else{ pNode = jsonLookup(p, zPath, 0, ctx); } if( pNode ){ if( flags & JSON_JSON ){ jsonReturnJson(pNode, ctx, 0); }else{ jsonReturn(pNode, ctx, 0); sqlite3_result_subtype(ctx, 0); } } }else{ pNode = jsonLookup(p, zPath, 0, ctx); if( p->nErr==0 && pNode ) jsonReturn(pNode, ctx, 0); } }else{ /* Two or more PATH arguments results in a JSON array with each ** element of the array being the value selected by one of the PATHs */ int i; jsonInit(&jx, ctx); jsonAppendChar(&jx, '['); for(i=1; i<argc; i++){ zPath = (const char*)sqlite3_value_text(argv[i]); pNode = jsonLookup(p, zPath, 0, ctx); if( p->nErr ) break; jsonAppendSeparator(&jx); if( pNode ){ jsonRenderNode(pNode, &jx, 0); }else{ jsonAppendRaw(&jx, "null", 4); } } if( i==argc ){ jsonAppendChar(&jx, ']'); jsonResult(&jx); sqlite3_result_subtype(ctx, JSON_SUBTYPE); } jsonReset(&jx); } } /* This is the RFC 7396 MergePatch algorithm. */ static JsonNode *jsonMergePatch( JsonParse *pParse, /* The JSON parser that contains the TARGET */ u32 iTarget, /* Node of the TARGET in pParse */ JsonNode *pPatch /* The PATCH */ ){ u32 i, j; u32 iRoot; JsonNode *pTarget; if( pPatch->eType!=JSON_OBJECT ){ return pPatch; } assert( iTarget>=0 && iTarget<pParse->nNode ); pTarget = &pParse->aNode[iTarget]; assert( (pPatch->jnFlags & JNODE_APPEND)==0 ); if( pTarget->eType!=JSON_OBJECT ){ jsonRemoveAllNulls(pPatch); return pPatch; } iRoot = iTarget; for(i=1; i<pPatch->n; i += jsonNodeSize(&pPatch[i+1])+1){ u32 nKey; const char *zKey; assert( pPatch[i].eType==JSON_STRING ); assert( pPatch[i].jnFlags & JNODE_LABEL ); assert( pPatch[i].eU==1 ); nKey = pPatch[i].n; zKey = pPatch[i].u.zJContent; assert( (pPatch[i].jnFlags & JNODE_RAW)==0 ); for(j=1; j<pTarget->n; j += jsonNodeSize(&pTarget[j+1])+1 ){ assert( pTarget[j].eType==JSON_STRING ); assert( pTarget[j].jnFlags & JNODE_LABEL ); assert( (pPatch[i].jnFlags & JNODE_RAW)==0 ); if( pTarget[j].n==nKey && strncmp(pTarget[j].u.zJContent,zKey,nKey)==0 ){ if( pTarget[j+1].jnFlags & (JNODE_REMOVE|JNODE_PATCH) ) break; if( pPatch[i+1].eType==JSON_NULL ){ pTarget[j+1].jnFlags |= JNODE_REMOVE; }else{ JsonNode *pNew = jsonMergePatch(pParse, iTarget+j+1, &pPatch[i+1]); if( pNew==0 ) return 0; pTarget = &pParse->aNode[iTarget]; if( pNew!=&pTarget[j+1] ){ assert( pTarget[j+1].eU==0 || pTarget[j+1].eU==1 || pTarget[j+1].eU==2 ); testcase( pTarget[j+1].eU==1 ); testcase( pTarget[j+1].eU==2 ); VVA( pTarget[j+1].eU = 5 ); pTarget[j+1].u.pPatch = pNew; pTarget[j+1].jnFlags |= JNODE_PATCH; } } break; } } if( j>=pTarget->n && pPatch[i+1].eType!=JSON_NULL ){ int iStart, iPatch; iStart = jsonParseAddNode(pParse, JSON_OBJECT, 2, 0); jsonParseAddNode(pParse, JSON_STRING, nKey, zKey); iPatch = jsonParseAddNode(pParse, JSON_TRUE, 0, 0); if( pParse->oom ) return 0; jsonRemoveAllNulls(pPatch); pTarget = &pParse->aNode[iTarget]; assert( pParse->aNode[iRoot].eU==0 || pParse->aNode[iRoot].eU==2 ); testcase( pParse->aNode[iRoot].eU==2 ); pParse->aNode[iRoot].jnFlags |= JNODE_APPEND; VVA( pParse->aNode[iRoot].eU = 2 ); pParse->aNode[iRoot].u.iAppend = iStart - iRoot; iRoot = iStart; assert( pParse->aNode[iPatch].eU==0 ); VVA( pParse->aNode[iPatch].eU = 5 ); pParse->aNode[iPatch].jnFlags |= JNODE_PATCH; pParse->aNode[iPatch].u.pPatch = &pPatch[i+1]; } } return pTarget; } /* ** Implementation of the json_mergepatch(JSON1,JSON2) function. Return a JSON ** object that is the result of running the RFC 7396 MergePatch() algorithm ** on the two arguments. */ static void jsonPatchFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonParse x; /* The JSON that is being patched */ JsonParse y; /* The patch */ JsonNode *pResult; /* The result of the merge */ UNUSED_PARAMETER(argc); if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return; if( jsonParse(&y, ctx, (const char*)sqlite3_value_text(argv[1])) ){ jsonParseReset(&x); return; } pResult = jsonMergePatch(&x, 0, y.aNode); assert( pResult!=0 || x.oom ); if( pResult ){ jsonReturnJson(pResult, ctx, 0); }else{ sqlite3_result_error_nomem(ctx); } jsonParseReset(&x); jsonParseReset(&y); } /* ** Implementation of the json_object(NAME,VALUE,...) function. Return a JSON ** object that contains all name/value given in arguments. Or if any name ** is not a string or if any value is a BLOB, throw an error. */ static void jsonObjectFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ int i; JsonString jx; const char *z; u32 n; if( argc&1 ){ sqlite3_result_error(ctx, "json_object() requires an even number " "of arguments", -1); return; } jsonInit(&jx, ctx); jsonAppendChar(&jx, '{'); for(i=0; i<argc; i+=2){ if( sqlite3_value_type(argv[i])!=SQLITE_TEXT ){ sqlite3_result_error(ctx, "json_object() labels must be TEXT", -1); jsonReset(&jx); return; } jsonAppendSeparator(&jx); z = (const char*)sqlite3_value_text(argv[i]); n = (u32)sqlite3_value_bytes(argv[i]); jsonAppendString(&jx, z, n); jsonAppendChar(&jx, ':'); jsonAppendValue(&jx, argv[i+1]); } jsonAppendChar(&jx, '}'); jsonResult(&jx); sqlite3_result_subtype(ctx, JSON_SUBTYPE); } /* ** json_remove(JSON, PATH, ...) ** ** Remove the named elements from JSON and return the result. malformed ** JSON or PATH arguments result in an error. */ static void jsonRemoveFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonParse x; /* The parse */ JsonNode *pNode; const char *zPath; u32 i; if( argc<1 ) return; if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return; assert( x.nNode ); for(i=1; i<(u32)argc; i++){ zPath = (const char*)sqlite3_value_text(argv[i]); if( zPath==0 ) goto remove_done; pNode = jsonLookup(&x, zPath, 0, ctx); if( x.nErr ) goto remove_done; if( pNode ) pNode->jnFlags |= JNODE_REMOVE; } if( (x.aNode[0].jnFlags & JNODE_REMOVE)==0 ){ jsonReturnJson(x.aNode, ctx, 0); } remove_done: jsonParseReset(&x); } /* ** json_replace(JSON, PATH, VALUE, ...) ** ** Replace the value at PATH with VALUE. If PATH does not already exist, ** this routine is a no-op. If JSON or PATH is malformed, throw an error. */ static void jsonReplaceFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonParse x; /* The parse */ JsonNode *pNode; const char *zPath; u32 i; if( argc<1 ) return; if( (argc&1)==0 ) { jsonWrongNumArgs(ctx, "replace"); return; } if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return; assert( x.nNode ); for(i=1; i<(u32)argc; i+=2){ zPath = (const char*)sqlite3_value_text(argv[i]); pNode = jsonLookup(&x, zPath, 0, ctx); if( x.nErr ) goto replace_err; if( pNode ){ assert( pNode->eU==0 || pNode->eU==1 || pNode->eU==4 ); testcase( pNode->eU!=0 && pNode->eU!=1 ); pNode->jnFlags |= (u8)JNODE_REPLACE; VVA( pNode->eU = 4 ); pNode->u.iReplace = i + 1; } } if( x.aNode[0].jnFlags & JNODE_REPLACE ){ assert( x.aNode[0].eU==4 ); sqlite3_result_value(ctx, argv[x.aNode[0].u.iReplace]); }else{ jsonReturnJson(x.aNode, ctx, argv); } replace_err: jsonParseReset(&x); } /* ** json_set(JSON, PATH, VALUE, ...) ** ** Set the value at PATH to VALUE. Create the PATH if it does not already ** exist. Overwrite existing values that do exist. ** If JSON or PATH is malformed, throw an error. ** ** json_insert(JSON, PATH, VALUE, ...) ** ** Create PATH and initialize it to VALUE. If PATH already exists, this ** routine is a no-op. If JSON or PATH is malformed, throw an error. */ static void jsonSetFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonParse x; /* The parse */ JsonNode *pNode; const char *zPath; u32 i; int bApnd; int bIsSet = sqlite3_user_data(ctx)!=0; if( argc<1 ) return; if( (argc&1)==0 ) { jsonWrongNumArgs(ctx, bIsSet ? "set" : "insert"); return; } if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return; assert( x.nNode ); for(i=1; i<(u32)argc; i+=2){ zPath = (const char*)sqlite3_value_text(argv[i]); bApnd = 0; pNode = jsonLookup(&x, zPath, &bApnd, ctx); if( x.oom ){ sqlite3_result_error_nomem(ctx); goto jsonSetDone; }else if( x.nErr ){ goto jsonSetDone; }else if( pNode && (bApnd || bIsSet) ){ testcase( pNode->eU!=0 && pNode->eU!=1 && pNode->eU!=4 ); assert( pNode->eU!=3 || pNode->eU!=5 ); VVA( pNode->eU = 4 ); pNode->jnFlags |= (u8)JNODE_REPLACE; pNode->u.iReplace = i + 1; } } if( x.aNode[0].jnFlags & JNODE_REPLACE ){ assert( x.aNode[0].eU==4 ); sqlite3_result_value(ctx, argv[x.aNode[0].u.iReplace]); }else{ jsonReturnJson(x.aNode, ctx, argv); } jsonSetDone: jsonParseReset(&x); } /* ** json_type(JSON) ** json_type(JSON, PATH) ** ** Return the top-level "type" of a JSON string. json_type() raises an ** error if either the JSON or PATH inputs are not well-formed. */ static void jsonTypeFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonParse *p; /* The parse */ const char *zPath; JsonNode *pNode; p = jsonParseCached(ctx, argv, ctx); if( p==0 ) return; if( argc==2 ){ zPath = (const char*)sqlite3_value_text(argv[1]); pNode = jsonLookup(p, zPath, 0, ctx); }else{ pNode = p->aNode; } if( pNode ){ sqlite3_result_text(ctx, jsonType[pNode->eType], -1, SQLITE_STATIC); } } /* ** json_valid(JSON) ** ** Return 1 if JSON is a well-formed JSON string according to RFC-7159. ** Return 0 otherwise. */ static void jsonValidFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonParse *p; /* The parse */ UNUSED_PARAMETER(argc); p = jsonParseCached(ctx, argv, 0); sqlite3_result_int(ctx, p!=0); } /**************************************************************************** ** Aggregate SQL function implementations ****************************************************************************/ /* ** json_group_array(VALUE) ** ** Return a JSON array composed of all values in the aggregate. */ static void jsonArrayStep( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonString *pStr; UNUSED_PARAMETER(argc); pStr = (JsonString*)sqlite3_aggregate_context(ctx, sizeof(*pStr)); if( pStr ){ if( pStr->zBuf==0 ){ jsonInit(pStr, ctx); jsonAppendChar(pStr, '['); }else if( pStr->nUsed>1 ){ jsonAppendChar(pStr, ','); } pStr->pCtx = ctx; jsonAppendValue(pStr, argv[0]); } } static void jsonArrayCompute(sqlite3_context *ctx, int isFinal){ JsonString *pStr; pStr = (JsonString*)sqlite3_aggregate_context(ctx, 0); if( pStr ){ pStr->pCtx = ctx; jsonAppendChar(pStr, ']'); if( pStr->bErr ){ if( pStr->bErr==1 ) sqlite3_result_error_nomem(ctx); assert( pStr->bStatic ); }else if( isFinal ){ sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, pStr->bStatic ? SQLITE_TRANSIENT : sqlite3_free); pStr->bStatic = 1; }else{ sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, SQLITE_TRANSIENT); pStr->nUsed--; } }else{ sqlite3_result_text(ctx, "[]", 2, SQLITE_STATIC); } sqlite3_result_subtype(ctx, JSON_SUBTYPE); } static void jsonArrayValue(sqlite3_context *ctx){ jsonArrayCompute(ctx, 0); } static void jsonArrayFinal(sqlite3_context *ctx){ jsonArrayCompute(ctx, 1); } #ifndef SQLITE_OMIT_WINDOWFUNC /* ** This method works for both json_group_array() and json_group_object(). ** It works by removing the first element of the group by searching forward ** to the first comma (",") that is not within a string and deleting all ** text through that comma. */ static void jsonGroupInverse( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ unsigned int i; int inStr = 0; int nNest = 0; char *z; char c; JsonString *pStr; UNUSED_PARAMETER(argc); UNUSED_PARAMETER(argv); pStr = (JsonString*)sqlite3_aggregate_context(ctx, 0); #ifdef NEVER /* pStr is always non-NULL since jsonArrayStep() or jsonObjectStep() will ** always have been called to initalize it */ if( NEVER(!pStr) ) return; #endif z = pStr->zBuf; for(i=1; i<pStr->nUsed && ((c = z[i])!=',' || inStr || nNest); i++){ if( c=='"' ){ inStr = !inStr; }else if( c=='\\' ){ i++; }else if( !inStr ){ if( c=='{' || c=='[' ) nNest++; if( c=='}' || c==']' ) nNest--; } } if( i<pStr->nUsed ){ pStr->nUsed -= i; memmove(&z[1], &z[i+1], (size_t)pStr->nUsed-1); z[pStr->nUsed] = 0; }else{ pStr->nUsed = 1; } } #else # define jsonGroupInverse 0 #endif /* ** json_group_obj(NAME,VALUE) ** ** Return a JSON object composed of all names and values in the aggregate. */ static void jsonObjectStep( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ JsonString *pStr; const char *z; u32 n; UNUSED_PARAMETER(argc); pStr = (JsonString*)sqlite3_aggregate_context(ctx, sizeof(*pStr)); if( pStr ){ if( pStr->zBuf==0 ){ jsonInit(pStr, ctx); jsonAppendChar(pStr, '{'); }else if( pStr->nUsed>1 ){ jsonAppendChar(pStr, ','); } pStr->pCtx = ctx; z = (const char*)sqlite3_value_text(argv[0]); n = (u32)sqlite3_value_bytes(argv[0]); jsonAppendString(pStr, z, n); jsonAppendChar(pStr, ':'); jsonAppendValue(pStr, argv[1]); } } static void jsonObjectCompute(sqlite3_context *ctx, int isFinal){ JsonString *pStr; pStr = (JsonString*)sqlite3_aggregate_context(ctx, 0); if( pStr ){ jsonAppendChar(pStr, '}'); if( pStr->bErr ){ if( pStr->bErr==1 ) sqlite3_result_error_nomem(ctx); assert( pStr->bStatic ); }else if( isFinal ){ sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, pStr->bStatic ? SQLITE_TRANSIENT : sqlite3_free); pStr->bStatic = 1; }else{ sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, SQLITE_TRANSIENT); pStr->nUsed--; } }else{ sqlite3_result_text(ctx, "{}", 2, SQLITE_STATIC); } sqlite3_result_subtype(ctx, JSON_SUBTYPE); } static void jsonObjectValue(sqlite3_context *ctx){ jsonObjectCompute(ctx, 0); } static void jsonObjectFinal(sqlite3_context *ctx){ jsonObjectCompute(ctx, 1); } #ifndef SQLITE_OMIT_VIRTUALTABLE /**************************************************************************** ** The json_each virtual table ****************************************************************************/ typedef struct JsonEachCursor JsonEachCursor; struct JsonEachCursor { sqlite3_vtab_cursor base; /* Base class - must be first */ u32 iRowid; /* The rowid */ u32 iBegin; /* The first node of the scan */ u32 i; /* Index in sParse.aNode[] of current row */ u32 iEnd; /* EOF when i equals or exceeds this value */ u8 eType; /* Type of top-level element */ u8 bRecursive; /* True for json_tree(). False for json_each() */ char *zJson; /* Input JSON */ char *zRoot; /* Path by which to filter zJson */ JsonParse sParse; /* Parse of the input JSON */ }; /* Constructor for the json_each virtual table */ static int jsonEachConnect( sqlite3 *db, void *pAux, int argc, const char *const*argv, sqlite3_vtab **ppVtab, char **pzErr ){ sqlite3_vtab *pNew; int rc; /* Column numbers */ #define JEACH_KEY 0 #define JEACH_VALUE 1 #define JEACH_TYPE 2 #define JEACH_ATOM 3 #define JEACH_ID 4 #define JEACH_PARENT 5 #define JEACH_FULLKEY 6 #define JEACH_PATH 7 /* The xBestIndex method assumes that the JSON and ROOT columns are ** the last two columns in the table. Should this ever changes, be ** sure to update the xBestIndex method. */ #define JEACH_JSON 8 #define JEACH_ROOT 9 UNUSED_PARAMETER(pzErr); UNUSED_PARAMETER(argv); UNUSED_PARAMETER(argc); UNUSED_PARAMETER(pAux); rc = sqlite3_declare_vtab(db, "CREATE TABLE x(key,value,type,atom,id,parent,fullkey,path," "json HIDDEN,root HIDDEN)"); if( rc==SQLITE_OK ){ pNew = *ppVtab = sqlite3_malloc( sizeof(*pNew) ); if( pNew==0 ) return SQLITE_NOMEM; memset(pNew, 0, sizeof(*pNew)); sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS); } return rc; } /* destructor for json_each virtual table */ static int jsonEachDisconnect(sqlite3_vtab *pVtab){ sqlite3_free(pVtab); return SQLITE_OK; } /* constructor for a JsonEachCursor object for json_each(). */ static int jsonEachOpenEach(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){ JsonEachCursor *pCur; UNUSED_PARAMETER(p); pCur = sqlite3_malloc( sizeof(*pCur) ); if( pCur==0 ) return SQLITE_NOMEM; memset(pCur, 0, sizeof(*pCur)); *ppCursor = &pCur->base; return SQLITE_OK; } /* constructor for a JsonEachCursor object for json_tree(). */ static int jsonEachOpenTree(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){ int rc = jsonEachOpenEach(p, ppCursor); if( rc==SQLITE_OK ){ JsonEachCursor *pCur = (JsonEachCursor*)*ppCursor; pCur->bRecursive = 1; } return rc; } /* Reset a JsonEachCursor back to its original state. Free any memory ** held. */ static void jsonEachCursorReset(JsonEachCursor *p){ sqlite3_free(p->zJson); sqlite3_free(p->zRoot); jsonParseReset(&p->sParse); p->iRowid = 0; p->i = 0; p->iEnd = 0; p->eType = 0; p->zJson = 0; p->zRoot = 0; } /* Destructor for a jsonEachCursor object */ static int jsonEachClose(sqlite3_vtab_cursor *cur){ JsonEachCursor *p = (JsonEachCursor*)cur; jsonEachCursorReset(p); sqlite3_free(cur); return SQLITE_OK; } /* Return TRUE if the jsonEachCursor object has been advanced off the end ** of the JSON object */ static int jsonEachEof(sqlite3_vtab_cursor *cur){ JsonEachCursor *p = (JsonEachCursor*)cur; return p->i >= p->iEnd; } /* Advance the cursor to the next element for json_tree() */ static int jsonEachNext(sqlite3_vtab_cursor *cur){ JsonEachCursor *p = (JsonEachCursor*)cur; if( p->bRecursive ){ if( p->sParse.aNode[p->i].jnFlags & JNODE_LABEL ) p->i++; p->i++; p->iRowid++; if( p->i<p->iEnd ){ u32 iUp = p->sParse.aUp[p->i]; JsonNode *pUp = &p->sParse.aNode[iUp]; p->eType = pUp->eType; if( pUp->eType==JSON_ARRAY ){ assert( pUp->eU==0 || pUp->eU==3 ); testcase( pUp->eU==3 ); VVA( pUp->eU = 3 ); if( iUp==p->i-1 ){ pUp->u.iKey = 0; }else{ pUp->u.iKey++; } } } }else{ switch( p->eType ){ case JSON_ARRAY: { p->i += jsonNodeSize(&p->sParse.aNode[p->i]); p->iRowid++; break; } case JSON_OBJECT: { p->i += 1 + jsonNodeSize(&p->sParse.aNode[p->i+1]); p->iRowid++; break; } default: { p->i = p->iEnd; break; } } } return SQLITE_OK; } /* Append the name of the path for element i to pStr */ static void jsonEachComputePath( JsonEachCursor *p, /* The cursor */ JsonString *pStr, /* Write the path here */ u32 i /* Path to this element */ ){ JsonNode *pNode, *pUp; u32 iUp; if( i==0 ){ jsonAppendChar(pStr, '$'); return; } iUp = p->sParse.aUp[i]; jsonEachComputePath(p, pStr, iUp); pNode = &p->sParse.aNode[i]; pUp = &p->sParse.aNode[iUp]; if( pUp->eType==JSON_ARRAY ){ assert( pUp->eU==3 || (pUp->eU==0 && pUp->u.iKey==0) ); testcase( pUp->eU==0 ); jsonPrintf(30, pStr, "[%d]", pUp->u.iKey); }else{ assert( pUp->eType==JSON_OBJECT ); if( (pNode->jnFlags & JNODE_LABEL)==0 ) pNode--; assert( pNode->eType==JSON_STRING ); assert( pNode->jnFlags & JNODE_LABEL ); assert( pNode->eU==1 ); jsonPrintf(pNode->n+1, pStr, ".%.*s", pNode->n-2, pNode->u.zJContent+1); } } /* Return the value of a column */ static int jsonEachColumn( sqlite3_vtab_cursor *cur, /* The cursor */ sqlite3_context *ctx, /* First argument to sqlite3_result_...() */ int i /* Which column to return */ ){ JsonEachCursor *p = (JsonEachCursor*)cur; JsonNode *pThis = &p->sParse.aNode[p->i]; switch( i ){ case JEACH_KEY: { if( p->i==0 ) break; if( p->eType==JSON_OBJECT ){ jsonReturn(pThis, ctx, 0); }else if( p->eType==JSON_ARRAY ){ u32 iKey; if( p->bRecursive ){ if( p->iRowid==0 ) break; assert( p->sParse.aNode[p->sParse.aUp[p->i]].eU==3 ); iKey = p->sParse.aNode[p->sParse.aUp[p->i]].u.iKey; }else{ iKey = p->iRowid; } sqlite3_result_int64(ctx, (sqlite3_int64)iKey); } break; } case JEACH_VALUE: { if( pThis->jnFlags & JNODE_LABEL ) pThis++; jsonReturn(pThis, ctx, 0); break; } case JEACH_TYPE: { if( pThis->jnFlags & JNODE_LABEL ) pThis++; sqlite3_result_text(ctx, jsonType[pThis->eType], -1, SQLITE_STATIC); break; } case JEACH_ATOM: { if( pThis->jnFlags & JNODE_LABEL ) pThis++; if( pThis->eType>=JSON_ARRAY ) break; jsonReturn(pThis, ctx, 0); break; } case JEACH_ID: { sqlite3_result_int64(ctx, (sqlite3_int64)p->i + ((pThis->jnFlags & JNODE_LABEL)!=0)); break; } case JEACH_PARENT: { if( p->i>p->iBegin && p->bRecursive ){ sqlite3_result_int64(ctx, (sqlite3_int64)p->sParse.aUp[p->i]); } break; } case JEACH_FULLKEY: { JsonString x; jsonInit(&x, ctx); if( p->bRecursive ){ jsonEachComputePath(p, &x, p->i); }else{ if( p->zRoot ){ jsonAppendRaw(&x, p->zRoot, (int)strlen(p->zRoot)); }else{ jsonAppendChar(&x, '$'); } if( p->eType==JSON_ARRAY ){ jsonPrintf(30, &x, "[%d]", p->iRowid); }else if( p->eType==JSON_OBJECT ){ assert( pThis->eU==1 ); jsonPrintf(pThis->n, &x, ".%.*s", pThis->n-2, pThis->u.zJContent+1); } } jsonResult(&x); break; } case JEACH_PATH: { if( p->bRecursive ){ JsonString x; jsonInit(&x, ctx); jsonEachComputePath(p, &x, p->sParse.aUp[p->i]); jsonResult(&x); break; } /* For json_each() path and root are the same so fall through ** into the root case */ /* no break */ deliberate_fall_through } default: { const char *zRoot = p->zRoot; if( zRoot==0 ) zRoot = "$"; sqlite3_result_text(ctx, zRoot, -1, SQLITE_STATIC); break; } case JEACH_JSON: { assert( i==JEACH_JSON ); sqlite3_result_text(ctx, p->sParse.zJson, -1, SQLITE_STATIC); break; } } return SQLITE_OK; } /* Return the current rowid value */ static int jsonEachRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){ JsonEachCursor *p = (JsonEachCursor*)cur; *pRowid = p->iRowid; return SQLITE_OK; } /* The query strategy is to look for an equality constraint on the json ** column. Without such a constraint, the table cannot operate. idxNum is ** 1 if the constraint is found, 3 if the constraint and zRoot are found, ** and 0 otherwise. */ static int jsonEachBestIndex( sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo ){ int i; /* Loop counter or computed array index */ int aIdx[2]; /* Index of constraints for JSON and ROOT */ int unusableMask = 0; /* Mask of unusable JSON and ROOT constraints */ int idxMask = 0; /* Mask of usable == constraints JSON and ROOT */ const struct sqlite3_index_constraint *pConstraint; /* This implementation assumes that JSON and ROOT are the last two ** columns in the table */ assert( JEACH_ROOT == JEACH_JSON+1 ); UNUSED_PARAMETER(tab); aIdx[0] = aIdx[1] = -1; pConstraint = pIdxInfo->aConstraint; for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){ int iCol; int iMask; if( pConstraint->iColumn < JEACH_JSON ) continue; iCol = pConstraint->iColumn - JEACH_JSON; assert( iCol==0 || iCol==1 ); testcase( iCol==0 ); iMask = 1 << iCol; if( pConstraint->usable==0 ){ unusableMask |= iMask; }else if( pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ ){ aIdx[iCol] = i; idxMask |= iMask; } } if( (unusableMask & ~idxMask)!=0 ){ /* If there are any unusable constraints on JSON or ROOT, then reject ** this entire plan */ return SQLITE_CONSTRAINT; } if( aIdx[0]<0 ){ /* No JSON input. Leave estimatedCost at the huge value that it was ** initialized to to discourage the query planner from selecting this ** plan. */ pIdxInfo->idxNum = 0; }else{ pIdxInfo->estimatedCost = 1.0; i = aIdx[0]; pIdxInfo->aConstraintUsage[i].argvIndex = 1; pIdxInfo->aConstraintUsage[i].omit = 1; if( aIdx[1]<0 ){ pIdxInfo->idxNum = 1; /* Only JSON supplied. Plan 1 */ }else{ i = aIdx[1]; pIdxInfo->aConstraintUsage[i].argvIndex = 2; pIdxInfo->aConstraintUsage[i].omit = 1; pIdxInfo->idxNum = 3; /* Both JSON and ROOT are supplied. Plan 3 */ } } return SQLITE_OK; } /* Start a search on a new JSON string */ static int jsonEachFilter( sqlite3_vtab_cursor *cur, int idxNum, const char *idxStr, int argc, sqlite3_value **argv ){ JsonEachCursor *p = (JsonEachCursor*)cur; const char *z; const char *zRoot = 0; sqlite3_int64 n; UNUSED_PARAMETER(idxStr); UNUSED_PARAMETER(argc); jsonEachCursorReset(p); if( idxNum==0 ) return SQLITE_OK; z = (const char*)sqlite3_value_text(argv[0]); if( z==0 ) return SQLITE_OK; n = sqlite3_value_bytes(argv[0]); p->zJson = sqlite3_malloc64( n+1 ); if( p->zJson==0 ) return SQLITE_NOMEM; memcpy(p->zJson, z, (size_t)n+1); if( jsonParse(&p->sParse, 0, p->zJson) ){ int rc = SQLITE_NOMEM; if( p->sParse.oom==0 ){ sqlite3_free(cur->pVtab->zErrMsg); cur->pVtab->zErrMsg = sqlite3_mprintf("malformed JSON"); if( cur->pVtab->zErrMsg ) rc = SQLITE_ERROR; } jsonEachCursorReset(p); return rc; }else if( p->bRecursive && jsonParseFindParents(&p->sParse) ){ jsonEachCursorReset(p); return SQLITE_NOMEM; }else{ JsonNode *pNode = 0; if( idxNum==3 ){ const char *zErr = 0; zRoot = (const char*)sqlite3_value_text(argv[1]); if( zRoot==0 ) return SQLITE_OK; n = sqlite3_value_bytes(argv[1]); p->zRoot = sqlite3_malloc64( n+1 ); if( p->zRoot==0 ) return SQLITE_NOMEM; memcpy(p->zRoot, zRoot, (size_t)n+1); if( zRoot[0]!='$' ){ zErr = zRoot; }else{ pNode = jsonLookupStep(&p->sParse, 0, p->zRoot+1, 0, &zErr); } if( zErr ){ sqlite3_free(cur->pVtab->zErrMsg); cur->pVtab->zErrMsg = jsonPathSyntaxError(zErr); jsonEachCursorReset(p); return cur->pVtab->zErrMsg ? SQLITE_ERROR : SQLITE_NOMEM; }else if( pNode==0 ){ return SQLITE_OK; } }else{ pNode = p->sParse.aNode; } p->iBegin = p->i = (int)(pNode - p->sParse.aNode); p->eType = pNode->eType; if( p->eType>=JSON_ARRAY ){ assert( pNode->eU==0 ); VVA( pNode->eU = 3 ); pNode->u.iKey = 0; p->iEnd = p->i + pNode->n + 1; if( p->bRecursive ){ p->eType = p->sParse.aNode[p->sParse.aUp[p->i]].eType; if( p->i>0 && (p->sParse.aNode[p->i-1].jnFlags & JNODE_LABEL)!=0 ){ p->i--; } }else{ p->i++; } }else{ p->iEnd = p->i+1; } } return SQLITE_OK; } /* The methods of the json_each virtual table */ static sqlite3_module jsonEachModule = { 0, /* iVersion */ 0, /* xCreate */ jsonEachConnect, /* xConnect */ jsonEachBestIndex, /* xBestIndex */ jsonEachDisconnect, /* xDisconnect */ 0, /* xDestroy */ jsonEachOpenEach, /* xOpen - open a cursor */ jsonEachClose, /* xClose - close a cursor */ jsonEachFilter, /* xFilter - configure scan constraints */ jsonEachNext, /* xNext - advance a cursor */ jsonEachEof, /* xEof - check for end of scan */ jsonEachColumn, /* xColumn - read data */ jsonEachRowid, /* xRowid - read data */ 0, /* xUpdate */ 0, /* xBegin */ 0, /* xSync */ 0, /* xCommit */ 0, /* xRollback */ 0, /* xFindMethod */ 0, /* xRename */ 0, /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ 0 /* xShadowName */ }; /* The methods of the json_tree virtual table. */ static sqlite3_module jsonTreeModule = { 0, /* iVersion */ 0, /* xCreate */ jsonEachConnect, /* xConnect */ jsonEachBestIndex, /* xBestIndex */ jsonEachDisconnect, /* xDisconnect */ 0, /* xDestroy */ jsonEachOpenTree, /* xOpen - open a cursor */ jsonEachClose, /* xClose - close a cursor */ jsonEachFilter, /* xFilter - configure scan constraints */ jsonEachNext, /* xNext - advance a cursor */ jsonEachEof, /* xEof - check for end of scan */ jsonEachColumn, /* xColumn - read data */ jsonEachRowid, /* xRowid - read data */ 0, /* xUpdate */ 0, /* xBegin */ 0, /* xSync */ 0, /* xCommit */ 0, /* xRollback */ 0, /* xFindMethod */ 0, /* xRename */ 0, /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ 0 /* xShadowName */ }; #endif /* SQLITE_OMIT_VIRTUALTABLE */ #endif /* !defined(SQLITE_OMIT_JSON) */ /* ** Register JSON functions. */ void sqlite3RegisterJsonFunctions(void){ #ifndef SQLITE_OMIT_JSON static FuncDef aJsonFunc[] = { JFUNCTION(json, 1, 0, jsonRemoveFunc), JFUNCTION(json_array, -1, 0, jsonArrayFunc), JFUNCTION(json_array_length, 1, 0, jsonArrayLengthFunc), JFUNCTION(json_array_length, 2, 0, jsonArrayLengthFunc), JFUNCTION(json_extract, -1, 0, jsonExtractFunc), JFUNCTION(->, 2, JSON_JSON, jsonExtractFunc), JFUNCTION(->>, 2, JSON_SQL, jsonExtractFunc), JFUNCTION(json_insert, -1, 0, jsonSetFunc), JFUNCTION(json_object, -1, 0, jsonObjectFunc), JFUNCTION(json_patch, 2, 0, jsonPatchFunc), JFUNCTION(json_quote, 1, 0, jsonQuoteFunc), JFUNCTION(json_remove, -1, 0, jsonRemoveFunc), JFUNCTION(json_replace, -1, 0, jsonReplaceFunc), JFUNCTION(json_set, -1, JSON_ISSET, jsonSetFunc), JFUNCTION(json_type, 1, 0, jsonTypeFunc), JFUNCTION(json_type, 2, 0, jsonTypeFunc), JFUNCTION(json_valid, 1, 0, jsonValidFunc), #if SQLITE_DEBUG JFUNCTION(json_parse, 1, 0, jsonParseFunc), JFUNCTION(json_test1, 1, 0, jsonTest1Func), #endif WAGGREGATE(json_group_array, 1, 0, 0, jsonArrayStep, jsonArrayFinal, jsonArrayValue, jsonGroupInverse, SQLITE_SUBTYPE|SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS), WAGGREGATE(json_group_object, 2, 0, 0, jsonObjectStep, jsonObjectFinal, jsonObjectValue, jsonGroupInverse, SQLITE_SUBTYPE|SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS) }; sqlite3InsertBuiltinFuncs(aJsonFunc, ArraySize(aJsonFunc)); #endif } #if !defined(SQLITE_OMIT_VIRTUALTABLE) && !defined(SQLITE_OMIT_JSON) /* ** Register the JSON table-valued functions */ int sqlite3JsonTableFunctions(sqlite3 *db){ int rc = SQLITE_OK; static const struct { const char *zName; sqlite3_module *pModule; } aMod[] = { { "json_each", &jsonEachModule }, { "json_tree", &jsonTreeModule }, }; int i; for(i=0; i<sizeof(aMod)/sizeof(aMod[0]) && rc==SQLITE_OK; i++){ rc = sqlite3_create_module(db, aMod[i].zName, aMod[i].pModule, 0); } return rc; } #endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) && !defined(SQLITE_OMIT_JSON) */ |
Changes to src/main.c.
︙ | ︙ | |||
46 47 48 49 50 51 52 | #endif #ifdef SQLITE_ENABLE_FTS2 int sqlite3Fts2Init(sqlite3*); #endif #ifdef SQLITE_ENABLE_FTS5 int sqlite3Fts5Init(sqlite3*); #endif | < < < | 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | #endif #ifdef SQLITE_ENABLE_FTS2 int sqlite3Fts2Init(sqlite3*); #endif #ifdef SQLITE_ENABLE_FTS5 int sqlite3Fts5Init(sqlite3*); #endif #ifdef SQLITE_ENABLE_STMTVTAB int sqlite3StmtVtabInit(sqlite3*); #endif /* ** An array of pointers to extension initializer functions for ** built-in extensions. |
︙ | ︙ | |||
83 84 85 86 87 88 89 | #ifdef SQLITE_ENABLE_DBPAGE_VTAB sqlite3DbpageRegister, #endif #ifdef SQLITE_ENABLE_DBSTAT_VTAB sqlite3DbstatRegister, #endif sqlite3TestExtInit, | | | | 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | #ifdef SQLITE_ENABLE_DBPAGE_VTAB sqlite3DbpageRegister, #endif #ifdef SQLITE_ENABLE_DBSTAT_VTAB sqlite3DbstatRegister, #endif sqlite3TestExtInit, #if !defined(SQLITE_OMIT_VIRTUALTABLE) && !defined(SQLITE_OMIT_JSON) sqlite3JsonTableFunctions, #endif #ifdef SQLITE_ENABLE_STMTVTAB sqlite3StmtVtabInit, #endif #ifdef SQLITE_ENABLE_BYTECODE_VTAB sqlite3VdbeBytecodeVtabInit, #endif |
︙ | ︙ |
Changes to src/parse.y.
︙ | ︙ | |||
232 233 234 235 236 237 238 | // improve performance and reduce the executable size. The goal here is // to get the "jump" operations in ISNULL through ESCAPE to have numeric // values that are early enough so that all jump operations are clustered // at the beginning. // %token ABORT ACTION AFTER ANALYZE ASC ATTACH BEFORE BEGIN BY CASCADE CAST. %token CONFLICT DATABASE DEFERRED DESC DETACH EACH END EXCLUSIVE EXPLAIN FAIL. | | | 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 | // improve performance and reduce the executable size. The goal here is // to get the "jump" operations in ISNULL through ESCAPE to have numeric // values that are early enough so that all jump operations are clustered // at the beginning. // %token ABORT ACTION AFTER ANALYZE ASC ATTACH BEFORE BEGIN BY CASCADE CAST. %token CONFLICT DATABASE DEFERRED DESC DETACH EACH END EXCLUSIVE EXPLAIN FAIL. %token OR AND NOT IS MATCH LIKE_KW BETWEEN IN ISNULL NOTNULL NE EQ. %token GT LE LT GE ESCAPE. // The following directive causes tokens ABORT, AFTER, ASC, etc. to // fallback to ID if they will not parse as their original value. // This obviates the need for the "id" nonterminal. // %fallback ID |
︙ | ︙ | |||
282 283 284 285 286 287 288 | %right NOT. %left IS MATCH LIKE_KW BETWEEN IN ISNULL NOTNULL NE EQ. %left GT LE LT GE. %right ESCAPE. %left BITAND BITOR LSHIFT RSHIFT. %left PLUS MINUS. %left STAR SLASH REM. | | | 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 | %right NOT. %left IS MATCH LIKE_KW BETWEEN IN ISNULL NOTNULL NE EQ. %left GT LE LT GE. %right ESCAPE. %left BITAND BITOR LSHIFT RSHIFT. %left PLUS MINUS. %left STAR SLASH REM. %left CONCAT PTR. %left COLLATE. %right BITNOT. %nonassoc ON. // An IDENTIFIER can be a generic identifier, or one of several // keywords. Any non-standard keyword can also be an identifier. // |
︙ | ︙ | |||
1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 | {A = sqlite3PExpr(pParse, @B, X, 0);/*A-overwrites-B*/} expr(A) ::= BITNOT(B) expr(X). {A = sqlite3PExpr(pParse, @B, X, 0);/*A-overwrites-B*/} expr(A) ::= PLUS|MINUS(B) expr(X). [BITNOT] { A = sqlite3PExpr(pParse, @B==TK_PLUS ? TK_UPLUS : TK_UMINUS, X, 0); /*A-overwrites-B*/ } %type between_op {int} between_op(A) ::= BETWEEN. {A = 0;} between_op(A) ::= NOT BETWEEN. {A = 1;} expr(A) ::= expr(A) between_op(N) expr(X) AND expr(Y). [BETWEEN] { ExprList *pList = sqlite3ExprListAppend(pParse,0, X); pList = sqlite3ExprListAppend(pParse,pList, Y); | > > > > > > | 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 | {A = sqlite3PExpr(pParse, @B, X, 0);/*A-overwrites-B*/} expr(A) ::= BITNOT(B) expr(X). {A = sqlite3PExpr(pParse, @B, X, 0);/*A-overwrites-B*/} expr(A) ::= PLUS|MINUS(B) expr(X). [BITNOT] { A = sqlite3PExpr(pParse, @B==TK_PLUS ? TK_UPLUS : TK_UMINUS, X, 0); /*A-overwrites-B*/ } expr(A) ::= expr(B) PTR(C) expr(D). { ExprList *pList = sqlite3ExprListAppend(pParse, 0, B); pList = sqlite3ExprListAppend(pParse, pList, D); A = sqlite3ExprFunction(pParse, pList, &C, 0); } %type between_op {int} between_op(A) ::= BETWEEN. {A = 0;} between_op(A) ::= NOT BETWEEN. {A = 1;} expr(A) ::= expr(A) between_op(N) expr(X) AND expr(Y). [BETWEEN] { ExprList *pList = sqlite3ExprListAppend(pParse,0, X); pList = sqlite3ExprListAppend(pParse,pList, Y); |
︙ | ︙ |
Changes to src/sqliteInt.h.
︙ | ︙ | |||
1934 1935 1936 1937 1938 1939 1940 | ** ** AGGREGATE(zName, nArg, iArg, bNC, xStep, xFinal) ** Used to create an aggregate function definition implemented by ** the C functions xStep and xFinal. The first four parameters ** are interpreted in the same way as the first 4 parameters to ** FUNCTION(). ** | | | 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 | ** ** AGGREGATE(zName, nArg, iArg, bNC, xStep, xFinal) ** Used to create an aggregate function definition implemented by ** the C functions xStep and xFinal. The first four parameters ** are interpreted in the same way as the first 4 parameters to ** FUNCTION(). ** ** WAGGREGATE(zName, nArg, iArg, xStep, xFinal, xValue, xInverse) ** Used to create an aggregate function definition implemented by ** the C functions xStep and xFinal. The first four parameters ** are interpreted in the same way as the first 4 parameters to ** FUNCTION(). ** ** LIKEFUNC(zName, nArg, pArg, flags) ** Used to create a scalar function definition of a function zName |
︙ | ︙ | |||
1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 | SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, 0, #zName, {0} } #define SFUNCTION(zName, nArg, iArg, bNC, xFunc) \ {nArg, SQLITE_FUNC_BUILTIN|SQLITE_UTF8|SQLITE_DIRECTONLY|SQLITE_FUNC_UNSAFE, \ SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, 0, #zName, {0} } #define MFUNCTION(zName, nArg, xPtr, xFunc) \ {nArg, SQLITE_FUNC_BUILTIN|SQLITE_FUNC_CONSTANT|SQLITE_UTF8, \ xPtr, 0, xFunc, 0, 0, 0, #zName, {0} } #define INLINE_FUNC(zName, nArg, iArg, mFlags) \ {nArg, SQLITE_FUNC_BUILTIN|\ SQLITE_UTF8|SQLITE_FUNC_INLINE|SQLITE_FUNC_CONSTANT|(mFlags), \ SQLITE_INT_TO_PTR(iArg), 0, noopFunc, 0, 0, 0, #zName, {0} } #define TEST_FUNC(zName, nArg, iArg, mFlags) \ {nArg, SQLITE_FUNC_BUILTIN|\ SQLITE_UTF8|SQLITE_FUNC_INTERNAL|SQLITE_FUNC_TEST| \ | > > > > | 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 | SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, 0, #zName, {0} } #define SFUNCTION(zName, nArg, iArg, bNC, xFunc) \ {nArg, SQLITE_FUNC_BUILTIN|SQLITE_UTF8|SQLITE_DIRECTONLY|SQLITE_FUNC_UNSAFE, \ SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, 0, #zName, {0} } #define MFUNCTION(zName, nArg, xPtr, xFunc) \ {nArg, SQLITE_FUNC_BUILTIN|SQLITE_FUNC_CONSTANT|SQLITE_UTF8, \ xPtr, 0, xFunc, 0, 0, 0, #zName, {0} } #define JFUNCTION(zName, nArg, iArg, xFunc) \ {nArg, SQLITE_FUNC_BUILTIN|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS|\ SQLITE_FUNC_CONSTANT|SQLITE_UTF8, \ SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, 0, #zName, {0} } #define INLINE_FUNC(zName, nArg, iArg, mFlags) \ {nArg, SQLITE_FUNC_BUILTIN|\ SQLITE_UTF8|SQLITE_FUNC_INLINE|SQLITE_FUNC_CONSTANT|(mFlags), \ SQLITE_INT_TO_PTR(iArg), 0, noopFunc, 0, 0, 0, #zName, {0} } #define TEST_FUNC(zName, nArg, iArg, mFlags) \ {nArg, SQLITE_FUNC_BUILTIN|\ SQLITE_UTF8|SQLITE_FUNC_INTERNAL|SQLITE_FUNC_TEST| \ |
︙ | ︙ | |||
4685 4686 4687 4688 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 | Select *sqlite3SelectDup(sqlite3*,const Select*,int); FuncDef *sqlite3FunctionSearch(int,const char*); void sqlite3InsertBuiltinFuncs(FuncDef*,int); FuncDef *sqlite3FindFunction(sqlite3*,const char*,int,u8,u8); void sqlite3QuoteValue(StrAccum*,sqlite3_value*); void sqlite3RegisterBuiltinFunctions(void); void sqlite3RegisterDateTimeFunctions(void); void sqlite3RegisterPerConnectionBuiltinFunctions(sqlite3*); int sqlite3SafetyCheckOk(sqlite3*); int sqlite3SafetyCheckSickOrOk(sqlite3*); void sqlite3ChangeCookie(Parse*, int); With *sqlite3WithDup(sqlite3 *db, With *p); #if !defined(SQLITE_OMIT_VIEW) && !defined(SQLITE_OMIT_TRIGGER) void sqlite3MaterializeView(Parse*, Table*, Expr*, ExprList*,Expr*,int); | > > > > | 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 4700 4701 4702 4703 4704 4705 4706 4707 | Select *sqlite3SelectDup(sqlite3*,const Select*,int); FuncDef *sqlite3FunctionSearch(int,const char*); void sqlite3InsertBuiltinFuncs(FuncDef*,int); FuncDef *sqlite3FindFunction(sqlite3*,const char*,int,u8,u8); void sqlite3QuoteValue(StrAccum*,sqlite3_value*); void sqlite3RegisterBuiltinFunctions(void); void sqlite3RegisterDateTimeFunctions(void); void sqlite3RegisterJsonFunctions(void); void sqlite3RegisterPerConnectionBuiltinFunctions(sqlite3*); #if !defined(SQLITE_OMIT_VIRTUALTABLE) && !defined(SQLITE_OMIT_JSON) int sqlite3JsonTableFunctions(sqlite3*); #endif int sqlite3SafetyCheckOk(sqlite3*); int sqlite3SafetyCheckSickOrOk(sqlite3*); void sqlite3ChangeCookie(Parse*, int); With *sqlite3WithDup(sqlite3 *db, With *p); #if !defined(SQLITE_OMIT_VIEW) && !defined(SQLITE_OMIT_TRIGGER) void sqlite3MaterializeView(Parse*, Table*, Expr*, ExprList*,Expr*,int); |
︙ | ︙ |
Changes to src/tokenize.c.
︙ | ︙ | |||
286 287 288 289 290 291 292 293 294 295 296 297 298 299 | return i; } case CC_MINUS: { if( z[1]=='-' ){ for(i=2; (c=z[i])!=0 && c!='\n'; i++){} *tokenType = TK_SPACE; /* IMP: R-22934-25134 */ return i; } *tokenType = TK_MINUS; return 1; } case CC_LP: { *tokenType = TK_LP; return 1; | > > > | 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 | return i; } case CC_MINUS: { if( z[1]=='-' ){ for(i=2; (c=z[i])!=0 && c!='\n'; i++){} *tokenType = TK_SPACE; /* IMP: R-22934-25134 */ return i; }else if( z[1]=='>' ){ *tokenType = TK_PTR; return 2 + (z[2]=='>'); } *tokenType = TK_MINUS; return 1; } case CC_LP: { *tokenType = TK_LP; return 1; |
︙ | ︙ |
Changes to test/func.test.
︙ | ︙ | |||
1502 1503 1504 1505 1506 1507 1508 1509 1510 | do_execsql_test func-35.110 { SELECT coalesce(x, 'xyz' LIKE printf('%.1000000c','y')) FROM t1; } {} do_execsql_test func-35.200 { CREATE TABLE t0(c0 CHECK(ABS(-9223372036854775808))); PRAGMA integrity_check; } {ok} finish_test | > > > > > > > > > > > > > > > | 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 | do_execsql_test func-35.110 { SELECT coalesce(x, 'xyz' LIKE printf('%.1000000c','y')) FROM t1; } {} do_execsql_test func-35.200 { CREATE TABLE t0(c0 CHECK(ABS(-9223372036854775808))); PRAGMA integrity_check; } {ok} # 2021-01-07: The -> and ->> operators. # proc ptr1 {a b} { return "$a->$b" } db func -> ptr1 proc ptr2 {a b} { return "$a->>$b" } db func ->> ptr2 do_execsql_test func-36.100 { SELECT 123 -> 456 } {123->456} do_execsql_test func-36.110 { SELECT 123 ->> 456 } {123->>456} finish_test |
Changes to test/json102.test.
︙ | ︙ | |||
332 333 334 335 336 337 338 339 340 | # All control characters are escaped # do_execsql_test json102-1501 { WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<0x1f) SELECT sum(json_valid(json_quote('a'||char(x)||'z'))) FROM c ORDER BY x; } {31} finish_test | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 | # All control characters are escaped # do_execsql_test json102-1501 { WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<0x1f) SELECT sum(json_valid(json_quote('a'||char(x)||'z'))) FROM c ORDER BY x; } {31} # 2022-01-10 tests for -> and ->> operators # reset_db do_execsql_test json102-1600 { CREATE TABLE t1(id INTEGER PRIMARY KEY, x JSON); INSERT INTO t1(id,x) VALUES (1, '{"a":null}'), (2, '{"a":123}'), (3, '{"a":4.5}'), (4, '{"a":"six"}'), (5, '{"a":[7,8]}'), (6, '{"a":{"b":9}}'), (7, '{"b":999}'); SELECT id, x->'a' AS '->', CASE WHEN subtype(x->'a') THEN 'json' ELSE typeof(x->'a') END AS 'type', x->>'a' AS '->>', CASE WHEN subtype(x->>'a') THEN 'json' ELSE typeof(x->>'a') END AS 'type', json_extract(x,'$.a') AS 'json_extract', CASE WHEN subtype(json_extract(x,'$.a')) THEN 'json' ELSE typeof(json_extract(x,'$.a')) END AS 'type' FROM t1 ORDER BY id; } [list \ 1 null json {} null {} null \ 2 123 json 123 integer 123 integer \ 3 4.5 json 4.5 real 4.5 real \ 4 {"six"} json six text six text \ 5 {[7,8]} json {[7,8]} text {[7,8]} json \ 6 {{"b":9}} json {{"b":9}} text {{"b":9}} json \ 7 {} null {} null {} null ] do_execsql_test json102-1610 { DELETE FROM t1; INSERT INTO t1(x) VALUES('[null,123,4.5,"six",[7,8],{"b":9}]'); WITH c(y) AS (VALUES(0),(1),(2),(3),(4),(5),(6)) SELECT y, x->y AS '->', CASE WHEN subtype(x->y) THEN 'json' ELSE typeof(x->y) END AS 'type', x->>y AS '->>', CASE WHEN subtype(x->>y) THEN 'json' ELSE typeof(x->>y) END AS 'type', json_extract(x,format('$[%d]',y)) AS 'json_extract', CASE WHEN subtype(json_extract(x,format('$[%d]',y))) THEN 'json' ELSE typeof(json_extract(x,format('$[%d]',y))) END AS 'type' FROM c, t1 ORDER BY y; } [list \ 0 null json {} null {} null \ 1 123 json 123 integer 123 integer \ 2 4.5 json 4.5 real 4.5 real \ 3 {"six"} json six text six text \ 4 {[7,8]} json {[7,8]} text {[7,8]} json \ 5 {{"b":9}} json {{"b":9}} text {{"b":9}} json \ 6 {} null {} null {} null ] finish_test |
Changes to tool/mksqlite3c.tcl.
︙ | ︙ | |||
425 426 427 428 429 430 431 | fts3_tokenizer1.c fts3_tokenize_vtab.c fts3_write.c fts3_snippet.c fts3_unicode.c fts3_unicode2.c | | | 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 | fts3_tokenizer1.c fts3_tokenize_vtab.c fts3_write.c fts3_snippet.c fts3_unicode.c fts3_unicode2.c json.c rtree.c icu.c fts3_icu.c sqlite3rbu.c dbstat.c dbpage.c sqlite3session.c |
︙ | ︙ |