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804 check-ins using file ext/misc/regexp.c version b267fd05

2022-05-18
17:22		Increased default size of the fiddle output area, changed the .nullvalue default in the input area, and minor CSS tweaks. (Leaf check-in: 281aaae7 user: stephan tags: fiddle)
17:14		Initial version of an sqlfiddle-style application using a WASM build of the sqlite3 shell. (check-in: af9c21c9 user: stephan tags: fiddle)
2022-05-17
15:33		Merge the latest trunk enhancements into the reuse-schema branch. (Leaf check-in: 495f0353 user: drh tags: reuse-schema)
15:11		Fix harmless compiler warnings in the new unixFullPathname implementation. (Leaf check-in: f7e1ceb5 user: drh tags: trunk)
15:01		Avoid treating constant expressions like "? IN ()" or "? NOT IN ()" as integers if they appear in a GROUP BY or ORDER BY clause. (check-in: d8b249e8 user: dan tags: trunk)
14:59		Add the sqlite3_db_name() interface. (check-in: 2ad15223 user: drh tags: trunk)
2022-05-16
16:55		Add memory barriers to multi-threaded code in test4.c. (check-in: 9260f4e0 user: dan tags: trunk)
16:10		Fix a problem in test file swarmvtab3.test causing occasional failures. (check-in: f935c155 user: dan tags: trunk)
2022-05-14
19:05		Do not allow an index scan on an index-on-expression for a RIGHT JOIN because the index might not be positioned on the correct row when running the the right-join no-match loop. dbsqlfuzz 39ee60004ff027a9e2846cf76e02cd5ac0953739 (check-in: 2277f9ba user: drh tags: trunk)
17:40		Improved debugging comment generation for the OP_Column opcode. (check-in: 3e073bfd user: drh tags: trunk)
15:59		Improvements to the decision of when to check ON constraints for an inner join that is an operand to a RIGHT JOIN. Fix for issue identify by forum post c06b10ad7e. (check-in: 9d17233c user: drh tags: trunk)
2022-05-13
23:01		Change an unreachable branch into an assert(). (check-in: 778e57a5 user: drh tags: trunk)
20:11		Transitive equality constriants do not work on a RIGHT JOIN, since the right-hand side might be a non-matched row. (check-in: 0f96810b user: drh tags: trunk)
19:50		Walk back the optimization from check-in [cc458317bd77046c] that tries to reuse the same ephemeral cursor of a list subquery when that subquery is reused, as it does not work in cases where the list subquery is used both for lookups and for scans. (check-in: 12ee29d6 user: drh tags: trunk)
17:45		Defer generating WHERE clause constraints for a RIGHT JOIN until after the ON-clause processing for the RIGHT JOIN has done its own row elimination. This fixes and incorrect output from some RIGHT JOINs that was identified by forum post 41cc3851d864c5e6. (check-in: 238d9c24 user: drh tags: trunk)
16:38		Redefine the acccess rules for the Expr.w union so that the Expr.w.iJoin member is accessible on either EP_OuterON or EP_InnerON. (check-in: 6f741d6c user: drh tags: trunk)
15:36		Corrections to the header comment to the new joinE.test script. Add the generator TCL as a comment at the bottom of the script. (check-in: 2f4456f6 user: drh tags: trunk)
15:31		New test cases for outer joins. Case joinE-32 currently gets an incorrect answer. See forum post 41cc3851d8 for the bug report. (check-in: 02b24863 user: drh tags: trunk)
14:52		Improved names for flags on the Expr object: EP_FromJoin becames EP_OuterON and EP_InnerJoin becomes EP_InnerON. (check-in: 1ffea07f user: drh tags: trunk)
2022-05-12
17:09		Fix a harmless compiler warning in the CLI. (check-in: 7a2ac303 user: drh tags: trunk)
11:56		Ensure that ON clauses are applied to the correct outer join. (check-in: c7e3a13a user: drh tags: trunk)
11:45		Add IS NOT DISTINCT FROM and IS DISTINCT FROM binary operators which are equivalent to IS and IS NOT, respectively, for compatability with PostgreSQL and hence standard SQL. (check-in: db27611e user: drh tags: trunk)
11:01		Fix the ".echo" command of the CLI so that it shows the results of input lines immediately, before invoking sqlite3_prepare(). (check-in: cf7fdabd user: drh tags: trunk)
2022-05-11
20:29		Zap stray --help output from intermediate version. (Closed-Leaf check-in: deb7372b user: larrybr tags: echo-sql)
19:59		Change .echo on effect so that SQL is echoed before prepare. This slightly alters echoed output when multiple SQL statements are submitted at once. Also sync with trunk. (check-in: c1eff632 user: larrybr tags: echo-sql)
17:57		The unix interface now resolves all symbolic links in filenames before actually using those filenames. (check-in: d55273e3 user: drh tags: trunk)
17:45		Use osReadlink() in os_unix.c, not readlink() directly. (Closed-Leaf check-in: c3da4c16 user: drh tags: resolve-symlinks)
16:46		For the unix VFS, rewrite the xFullPathname method so that it automatically resolves all symbolic links, rendering a canonical pathname that contains no symlinks. (check-in: 40c9273d user: drh tags: resolve-symlinks)
03:42		Fix .import leak in CLI and add shell leak testing to debug builds and the Tcl test suite. (check-in: df842ebc user: larrybr tags: trunk)
03:29		Sync w/ trunk (Closed-Leaf check-in: 1284225b user: larrybr tags: import-leak-plug)
2022-05-10
23:28		Fix a bug in the sqlite3WhereMalloc() routines that were added by chekc-in [f237e1d8cc41b937]. The bug was detected by dbsqlfuzz test case 4c5e3e89bc251d28378be88233f531b84ec66901. (check-in: 764b7126 user: drh tags: trunk)
22:32		Make tester.tcl work on more Windows Tcl installations. And sync w/ trunk. (check-in: d25fbdf8 user: larrybr tags: import-leak-plug)
18:43		New requirement marks. (check-in: e8479e56 user: drh tags: trunk)
18:18		Fix a stale requirement mark. (check-in: fcda7fb1 user: drh tags: trunk)
17:42		Fix a stale requirement mark. (check-in: 3eda4030 user: drh tags: echo-sql)
15:55		Fix a harmless UBSAN warning. (check-in: 8f935502 user: drh tags: trunk)
14:57		Sync w/ trunk (check-in: b7285f92 user: larrybr tags: echo-sql)
14:55		For CLI, add ".echo sql" dot-command. (check-in: 35cef458 user: larrybr tags: echo-sql)
13:06		Merge all recent trunk changes into the reuse-schema branch. (check-in: 9f6d6e61 user: drh tags: reuse-schema)
12:45		Merge the latest trunk enhancements into theh begin-concurrent-pnu-wal2 branch. (Leaf check-in: d28af1f8 user: drh tags: begin-concurrent-pnu-wal2)
12:39		Merge recent trunk enhancements into the wal2 branch. (Leaf check-in: 33d77fea user: drh tags: wal2)
12:24		Merge the latest trunk enhancements into the begin-concurrent-report branch. Had to restore the sqlite3VdbeSerialPut() routine that was removed in check-in [6f4d6f212a3558c2] when it was inlined because that routine is used again in a different place by this branch. (Leaf check-in: e6b5224d user: drh tags: begin-concurrent-report)
12:00		Merge recent trunk enhancements into the begin-concurrent branch. (Leaf check-in: f65bd767 user: drh tags: begin-concurrent)
06:04		Sync w/trunk (check-in: 536691ed user: larrybr tags: import-leak-plug)
01:11		Cause most shell tests to be run under Tcl suite valgrind config. (check-in: cd085b36 user: larrybr tags: import-leak-plug)
00:24		Simplified "hidden" and "no-expand" handling in the *-expander. (check-in: c6c3115f user: drh tags: trunk)
2022-05-09
21:57		Update this branch with latest changes from trunk, and the fts5 fix for "BEGIN CCONCURRENT" transactions. (Leaf check-in: c0135441 user: dan tags: begin-concurrent-report-wal2)
18:33		Create new branch named "echo-sql" (check-in: 042f2935 user: larrybr tags: echo-sql)
17:55		Minor STAT4 test case change due to the ANALYZE enhancement of [eb59c46a5aed69bc\|check-in eb59c46a5aed69bc]. (check-in: 8ce2fecb user: drh tags: trunk)
16:29		Add ALWAYS() on two unreachable branches in the * expander. (check-in: 387c8523 user: drh tags: trunk)
14:22		Ensure that fts5 closes the read-only blob handle used to read the fts index at the end of each xUpdate operation. This doesn't matter for stock SQLite, as the handle will be closed in the subsequent xRollback or xSync call, but prevents "BEGIN CONCURRENT" transactions from being committed on this branch. (check-in: 093b6084 user: dan tags: begin-concurrent-pnu-wal2)
12:59		Simplify a branch in the "*" expansion logic. New test case for an INSTEAD OF trigger on a RIGHT and FULL outer join. (check-in: d2717348 user: drh tags: trunk)
12:29		Simplify .import leak plug and arrange for CLI to be run under valgrind. (check-in: 0d3e2380 user: larrybr tags: import-leak-plug)
2022-05-07
03:53		Stop a memory leak in .import, and add leak complaint to CLI debug builds. (check-in: f5f09368 user: larrybr tags: import-leak-plug)
02:21		Create new branch named "import-leak-plug" (check-in: 4a4cecab user: larrybr tags: import-leak-plug)
2022-05-06
22:29		Perserve the requested reserved-bytes size for the database file when doing a VACUUM. (check-in: dac6d87c user: drh tags: trunk)
17:06		Merge the 3.38.5 fix into the 3.38 subbranch of reuse-schema. (Leaf check-in: bfccca2b user: drh tags: reuse-schema-3.38)
16:52		Merge the 3.38.5 fix into the begin-concurrent-wal2 subbranch for 3.38. (Leaf check-in: 0586b3e9 user: drh tags: begin-concurrent-wal2-3.38)
15:25		Version 3.38.5 (Leaf check-in: 78d9c993 user: drh tags: release, branch-3.38, version-3.38.5)
01:02		Prevent an infinite loop on SQLITE_ERROR_RETRY when trying to modify a corrupt schema while PRAGMA writeable_schema=ON is active. dbsqlfuzz ded83609f475cc989c7339d45efb5151c1495501 (check-in: 7fcdb760 user: drh tags: branch-3.38)
00:43		Prevent an infinite loop on SQLITE_ERROR_RETRY when trying to modify a corrupt schema while PRAGMA writeable_schema=ON is active. dbsqlfuzz ded83609f475cc989c7339d45efb5151c1495501 (check-in: 217b3323 user: drh tags: trunk)
2022-05-05
10:04		Update the version number to 3.38.5 (check-in: bf73b57f user: drh tags: branch-3.38)
10:03		Backout check-in [9fb20a21feb8f697] which was incorrect. (check-in: 66f65b32 user: drh tags: branch-3.38)
10:02		Backout check-in [9fb20a21feb8f697] which was incorrect. (check-in: 99225618 user: drh tags: trunk)
03:49		Cause CLI to use ExportHandler interface for its query output, and implement built-in subclasses of it, all in preparation for supporting implementations by shell extensions. (a WIP) (Leaf check-in: 9b37e0be user: larrybr tags: cli_extension)
2022-05-04
18:43		Improvements for name resolution for parenthsized joins. (check-in: 006b2d9c user: drh tags: trunk)
17:43		New test cases for RIGHT and FULL JOIN, focusing on cases that make use of Bloom filters, and a bug fix related to when ON-clause constraints are applied. (check-in: 67510354 user: drh tags: trunk)
17:30		Code EP_InnerJoin constraints at the same time that EP_FromJoin constraints are coded. (Closed-Leaf check-in: b57033d2 user: drh tags: joinD)
16:46		Merge version-3.38.4 into the reuse-schema-3.38 subbranch. (check-in: d5b0fd84 user: drh tags: reuse-schema-3.38)
16:36		Merge the version 3.38.4 fixes into the begin-concurrent-wal2-3.38 branch. (check-in: 8473718d user: drh tags: begin-concurrent-wal2-3.38)
15:45		Version 3.38.4 (check-in: d402f498 user: drh tags: release, branch-3.38, version-3.38.4)
14:46		Merge ON-clause constraint usage fix from trunk into the joinD branch. (check-in: 0a20d4a8 user: drh tags: joinD)
14:45		Fix ON-clause constraint usage for FULL and RIGHT JOINs. (check-in: 544268a7 user: drh tags: trunk)
11:49		New test cases using various join types and Bloom filters. Two cases differ from PG and need to be resolved. (check-in: befa8cbc user: drh tags: joinD)
03:48		Fix CLI use of wrong allocator for free(). (check-in: 4f83c442 user: larrybr tags: branch-3.38)
03:45		Fix CLI use of wrong allocator for free(). (check-in: 9fb20a21 user: larrybr tags: trunk)
02:01		In the query planner, do not let tables commute across any outer join. (check-in: 8cee5388 user: drh tags: trunk)
2022-05-03
21:58		Typos cleared from README.md (check-in: be3a1879 user: larrybr tags: trunk)
19:51		Fix multi-byte column name rendition on .import and display of NULL in columnar modes. (check-in: f863aabe user: larrybr tags: branch-3.38)
16:26		Merge Bloom filter bug fix from trunk into the right-join branch. (Closed-Leaf check-in: 72131ad1 user: drh tags: right-join)
16:18		Fix a typo in a comment. (check-in: c19c3c48 user: drh tags: right-join)
14:26		Increase the version number to 3.38.4. (check-in: def971a0 user: drh tags: branch-3.38)
14:25		Fix the Bloom filter pull-down optimization so that it jumps to the correct place if it encounters a NULL key. Fix for the bug described by forum thread 2482b32700384a0f. (check-in: 3dc9fc2f user: drh tags: branch-3.38)
14:01		Fix the Bloom filter pull-down optimization so that it jumps to the correct place if it encounters a NULL key. Fix for the bug described by forum thread 2482b32700384a0f. (check-in: 6eda9b1a user: drh tags: trunk)
12:11		Add assert()s to show that jumps always land an an instruction that is between 1 and Vdbe.nOp-1. Had these assert()s been in place before, they would have caused an assertion fault for the byte-code error reported by forum post 2482b32700. (check-in: 8f8a58fe user: drh tags: trunk)
2022-05-02
20:49		Organize the various flag bits of the ExprList_item object into a substructure so that the whole lot can be copied all at once. Faster and smaller code. (check-in: 5341d4bb user: drh tags: right-join)
20:14		Merge trunk fixes into the right-join branch. (check-in: e01f4c05 user: drh tags: right-join)
20:04		Improved comments. (check-in: 158b80be user: drh tags: right-join)
19:59		Name resolution and "*" wildcard expansion for parenthesized FROM clauses seems to work the same as PG. The code is chaos, however, and needs some cleanup. (check-in: 6f9c0b07 user: drh tags: right-join)
15:47		Remove a testcase() macro taht was made obsolete by [a8da85c57e07721d]. (check-in: 053cf45e user: drh tags: trunk)
15:31		Document (in comments) that the SQLITE_FlttnUnionAll bit has a specific value needed by TH3. (check-in: bcaa4a44 user: drh tags: trunk)
15:23		Fix a harmless compiler warning in sqlite3TreeViewWinFunc() (a routine that does not even appear in release builds). (check-in: daff6070 user: drh tags: trunk)
15:10		Merge the latest trunk fixes and enhancements into the right-join branch. (check-in: afbcf075 user: drh tags: right-join)
14:32		Improvement on check-in [a193749730d6cfba] so that the subroutine call to the IN operator right-hand side generator from the RIGHT JOIN no-match logic does not generate unreachable byte code. (check-in: cc458317 user: drh tags: trunk)
11:24		Bring the comments on sqlite3FindInIndex() into closer alignment with what that routine actually does. (check-in: 40f32747 user: drh tags: trunk)
2022-05-01
14:26		Remove FILE* from shell extension interface. (check-in: 27ff5ce5 user: larrybr tags: cli_extension)
04:55		Get sqlite3x.exe and extensions tested with MSVC build. (check-in: d2b16c29 user: larrybr tags: cli_extension)
2022-04-30
19:55		Defensive code in sqlite3TreeViewWindow() to fix a compiler warning. (check-in: b250c218 user: drh tags: trunk)
18:40		Simplified fix to the problem with subroutine reuse in the RIGHT JOIN no-match logic for a subquery on the right-hand side of an IN operator. The code still needs simplification. (check-in: a1937497 user: drh tags: trunk)
17:22		Fix another problem with subroutine reuse in the RIGHT JOIN no-match code for the subquery on the right-hand side of an IN operator. The current code works for all known cases, but seems unnecessarily complex and in need of simplification. Later: The fuzzer finds memory leaks with this version. (Closed-Leaf check-in: ad32da80 user: drh tags: not-working)
12:55		Preserve the COLLATE operator on an index on an expression when resolving the use of that expression into a reference to the index. See forum thread 7efabf4b03328e57 for details. (check-in: ef72f9e2 user: drh tags: branch-3.38)
12:35		Preserve the COLLATE operator on an index on an expression when resolving the use of that expression into a reference to the index. See forum thread 7efabf4b03328e57 for details. (check-in: a8da85c5 user: drh tags: trunk)
00:06		Further improvements to codeEqualityTerm() for cases when an IN operator with a right-hand side subquery is used as a constraint that needs to be processed by the RIGHT JOIN non-matched logic. (check-in: bb2798be user: drh tags: trunk)
00:05		Enhance the TreeView debugging output for Expr with opcode TK_IN so as to show the RHS table and the subroutine address. (check-in: aec1e4cd user: drh tags: trunk)
2022-04-29
21:38		For Tcl extension, get Tk option into MSVC build. (check-in: c3494fa7 user: larrybr tags: cli_extension)
19:00		Enhance the codeEqualityTerm() routine inside the code generator so that it is able to reuse an IN operator that has an invariant subquery on its right-hand side while coding the non-matched loop of a RIGHT JOIN. dbsqlfuzz 19f1102a70cf966ab249de56d944fc20dbebcfcf (check-in: 56dd3065 user: drh tags: trunk)
18:36		Get MSVC build going for sqlite3x.exe and extensions. And sync w/trunk. (check-in: cd5e57e0 user: larrybr tags: cli_extension)
17:45		With TreeView, only show the table columns for a SrcItem if the data source is a subquery rather than a persistent table. (check-in: 7b4a0d0f user: drh tags: trunk)
17:13		Multiple enhancements to the TreeView output for SrcItem, cherrypicked from the right-join experimental branch. (check-in: 293afa81 user: drh tags: trunk)
17:03		Show the USING clause as part of the tree-view display of SrcItem. (check-in: 9cba3ce5 user: drh tags: right-join)
12:09		Minor typo fix in a comment, for the benefit of broken IDE syntax highlighters. (check-in: 680ccecb user: drh tags: trunk)
2022-04-28
18:33		Fix problem with SQLITE_OMIT_VIRTUALTABLE builds. (check-in: a99ee612 user: dan tags: trunk)
18:17		In treeview.c, show the columns of the table associated with each SrcItem. (check-in: 3aafccb5 user: drh tags: right-join)
17:35		Tweaks to the name resolution on parenthesized joins. A small number of tests fail now due to extra columns appearing in the expansion of "*". (check-in: c8680491 user: drh tags: right-join)
12:52		Merge trunk enhancements into the right-join branch. (check-in: 3fd9706b user: drh tags: right-join)
2022-04-27
21:10		The -DSQLITE_MXFILENAMESZ=N option for some non-negative integer value N prevents SQLite from ever creating a hole larger than N bytes in a named file for which a size hint has been issued. The exception code never runs, except for cases when the application deliberately corrupts the size hint. (Leaf check-in: 0c2da4ff user: drh tags: mkfileholesz)
18:38		Fix a harmless typo in a comment. (check-in: e1f4a115 user: drh tags: trunk)
16:41		When computing STAT1 values using ANALYZE, if a ratio comes out to be between 1.0 and 1.1, then round it down to 1 rather than the using the default rounding rule of changing it to 2. The reduces the estimation error for the case where a column value is very nearly, but not quite unique. (check-in: eb59c46a user: drh tags: trunk)
13:33		Fix a test problem in rbubusy.test causing a crash under some circumstances. (check-in: bc5bbd9f user: dan tags: trunk)
13:12		Merge the version 3.38.3 fixes into the reuse-schema-3.8 subbranch. (check-in: 436d0a58 user: drh tags: reuse-schema-3.38)
13:00		Merge version 3.38.3 fixes onto the begin-concurrent-wal2-3.38 branch. (check-in: 5590f0a4 user: drh tags: begin-concurrent-wal2-3.38)
12:03		Version 3.38.3 (check-in: 9547e2c3 user: drh tags: release, branch-3.38, version-3.38.3)
2022-04-26
20:58		Modify utility function sqlite3SetString() so that it may be used safely on Parse.zErrMsg. Fuzzer test case "crash-1604e5d76c92574e21e437049dab9b672e06b767.txt". (check-in: b9c7d2c1 user: drh tags: branch-3.38)
19:48		Cherry-pick various minor fixes from trunk into branch-3.38. (check-in: fece097c user: drh tags: branch-3.38)
19:16		Update corruptL.test so that it works with SQLITE_ENABLE_OVERSIZE_CELL_CHECK builds. (check-in: b1bec720 user: dan tags: trunk)
2022-04-25
23:00		Reverse the order of two tests to stop a harmless initialized value warning from MSAN - reported by OSSFuzz. (check-in: fb7e1a07 user: drh tags: branch-3.38)
21:31		Fix a problem with using multiple SQLITE_SUBTYPE function as window functions in a single query. (check-in: 9caca6cb user: drh tags: branch-3.38)
21:22		Increase the version number to 3.38.3. (check-in: b113afa2 user: drh tags: branch-3.38)
21:21		Fix a problem with automatic indexes introduced by check-in [664b461bb5063d980] and reported by forum post 0d3200f4f3bcd3a3. (check-in: 4fbb9ffe user: drh tags: branch-3.38)
20:56		Fix a problem with automatic indexes introduced by check-in [664b461bb5063d980] and reported by forum post 0d3200f4f3bcd3a3. (check-in: 134cfb18 user: drh tags: trunk)
20:47		Do not allow the push-down optimization on the right table of a RIGHT JOIN. (Closed-Leaf check-in: 05917bfa user: drh tags: autoindex-fix)
20:38		The pushDownWhereTerms() routine should be using sqlite3ExprIsTableConstraint(), not sqlite3ExprIsTableConstant(). This fixes many problems, but still an error persists in join7.test. (check-in: 10bf0e61 user: drh tags: autoindex-fix)
19:40		Failed first attempt to fix a problem with automatic indexes introduced by check-in [664b461bb5063d980] and reported by forum post 0d3200f4f3bcd3a3. I thought that I had tested this prior to check-in and that it worked. But after checking it in, I find that there are many test failures. (check-in: 7ca3456c user: drh tags: autoindex-fix)
14:59		Add a new optimizer disabling bit to disable just the UNION ALL branch of the query flattener. (check-in: c0f9ebab user: drh tags: trunk)
14:49		Avoid unintended side-effects on Parse.nSelect in the sqlite3ViewGetColumnNames() routine. (check-in: 59789fe1 user: drh tags: trunk)
10:43		Remove NEVER() on branches formerly thought to unreachable (see check-in [71272caff5874137]) in order to fix the first bug reported by forum post 28821db852. (check-in: bd6811d8 user: drh tags: trunk)
2022-04-24
20:00		Get CLI conformed to revised doc for it, and take recent fixes. (check-in: 60e85c7e user: larrybr tags: cli_extension)
2022-04-23
19:26		Merge enhancements and fixes from trunk into the right-join branch. (check-in: 2fb165cf user: drh tags: right-join)
19:21		Prevent the ORDER BY LIMIT optimization from running if the innermost loop is a right-join, as doing so will get an incorrect answer. (check-in: 3aefc874 user: drh tags: trunk)
18:46		In debug builds, add extra code to verify that there are no jumps that try to escape from the right-join body subroutine. (check-in: 45fe9192 user: drh tags: trunk)
18:34		Fix false-positives in sqlite3VdbeNoJumpsOutsideSubrtn(). All tests pass now. (Closed-Leaf check-in: 1300d978 user: drh tags: right-join-subrtn-check)
18:04		For debug builds, if the RIGHT JOIN body subroutine contains a jump that escapes the subroutine, then abort the prepared statement with a descriptive error and SQLITE_INTERNAL. This extra sanity check causes many tests to fail. (check-in: 2c5bb2bf user: drh tags: right-join-subrtn-check)
14:30		Fix an operator typo - This indicates that the branch needs further investigation and verification. (check-in: f6ab6796 user: drh tags: right-join)
07:31		Correctly resolve left and right USING columns of an outer join in a parenthesized subjoin. (check-in: ea91aba8 user: drh tags: right-join)
07:29		Fix minor problems with the new join table name resolution logic. (Closed-Leaf check-in: 3a6b0db4 user: drh tags: right-join-colnames)
2022-04-22
23:18		Add the ability to access the USING columns of the right or left tables of an OUTER JOIN even if the OUTER JOIN is in parentheses. Prototype code only. (check-in: c3a42757 user: drh tags: right-join-colnames)
19:52		Merge the latest enhancements and fixes from trunk onto the right-join branch. (check-in: 7f898334 user: drh tags: right-join)
18:07		Make use of the "%!S" format when running ExplainSubquery. (check-in: 9425d79c user: drh tags: trunk)
17:36		Improve EXPLAIN QUERY PLAN output and comments on bytecode listings by distinguishing between "subquery" and "join" and using consistent names across EQP and bytecode. (check-in: a2d3ee92 user: drh tags: trunk)
16:15		Honor the MATERIALIZED keyword on a common table expression by not flattening the CTE into an outer query. (check-in: 8d631a6b user: drh tags: trunk)
15:18		Add test cases to check the handling of SQLITE_BUSY in rbu. (check-in: 6fccc733 user: dan tags: trunk)
13:34		Simplification of data structures in the wildcard expander for SF_NestedFrom queries. (check-in: f7c18262 user: drh tags: trunk)
12:46		Minor simplification to the result-set wildcard expander for SF_NestedFrom. (check-in: d942530a user: drh tags: right-join)
09:57		Merge the latest trunk fixes into the right-join branch. (check-in: c74dc574 user: drh tags: right-join)
2022-04-21
23:34		Previous fix to join8.test needs a return. (check-in: 7b4cd705 user: drh tags: trunk)
23:01		Disable join8.test if the build lacks support for virtual tables. (check-in: 94e1916a user: drh tags: trunk)
19:38		Add support for RIGHT and FULL JOIN. (check-in: f766dff0 user: drh tags: trunk)
19:25		Fix harmless compiler warnings. (check-in: 29255664 user: drh tags: right-join)
19:20		Fix a harmless uninitialized variable warning in MSVC. (check-in: b870d2a2 user: drh tags: trunk)
19:14		Fix harmless compiler warnings in the CLI. (check-in: dfd2100b user: drh tags: trunk)
14:48		Make sure the code generator knows to invoke row-value subroutines which running the right-join post-processing loop. (check-in: fd328e52 user: drh tags: right-join)
14:08		Ensure correct fg.isNestedFrom values even on crazy parses. (check-in: e611e8e6 user: drh tags: right-join)
13:11		Avoid materializing columns of SF_NestedFrom subqueries that are never used. Other code improvements manually imported from the right-join-paren branch. (check-in: cd8272fc user: drh tags: right-join)
12:11		Further attempts to get name resolution to work correctly with parenthisized FROM clauses. Work-in-progress. Lots of crashes and wrong answers. (Closed-Leaf check-in: 6b326b3b user: drh tags: right-join-paren)
01:49		Attempting to improve name resolution for parenthesized FROM clauses. Only partially working. (check-in: 959b7182 user: drh tags: right-join-paren)
2022-04-20
22:41		For CLI, fix how columnar mode fills in empty portions of wrapped row outputs. (check-in: 77aed891 user: larrybr tags: trunk)
21:58		Try to avoid materializing unused columns when processing a parenthesized FROM clause. (check-in: 07906e3c user: drh tags: right-join-paren)
18:12		Small correction to the new bUsed logic of sqlite3ProcessJoin(). (check-in: ba04142e user: drh tags: right-join)
16:54		Merge window function fix from trunk. (check-in: b6b9e185 user: drh tags: right-join)
16:53		Remove an unnecessary assignment operation. (check-in: ed46527a user: drh tags: right-join)
16:42		Fix a problem with using multiple SQLITE_SUBTYPE function as window functions in a single query. (check-in: 9430ead7 user: dan tags: trunk)
16:26		Comment fixes and improvements in sqlite3ProcessJoin(). (check-in: 1118655f user: drh tags: right-join)
15:07		Improved tracking of nested SELECT objects used to implement parenthensized FROM terms. (check-in: 0da22326 user: drh tags: right-join)
12:15		Also show the ENAME_SPAN value in sqlite3TreeViewExprList(), if there is one. (check-in: c1d42861 user: drh tags: right-join)
12:14		Improved TreeView output for ExprList: Show the ENAME_TAB value, if there is one. (check-in: eb3f883b user: drh tags: right-join)
12:02		Add a new comment to the body of lookupName(). No code changes. (check-in: 22fa9b9b user: drh tags: right-join)
2022-04-19
23:00		Merge the ALTER TABLE fix from trunk. (check-in: d5ceaef3 user: drh tags: right-join)
20:47		Fix a problem in ALTER TABLE with handling "table.*" expressions within SELECT statements in triggers. (check-in: 24755fd0 user: dan tags: trunk)
19:51		Improved comment on the JF_LTORJ constant definition. (check-in: e0744da9 user: drh tags: right-join)
18:23		Fix a NULL-pointer dereference that can occur on an aggregate query that uses FULL JOIN. dbsqlfuzz 496a35dd4eefcd7935aaaeb0c69056bf49785d28. (check-in: 63b8f8ae user: drh tags: right-join)
15:56		Mark an unreachable "just-in-case" branch as unreachable. (check-in: b966d524 user: drh tags: right-join)
15:01		Add 512 new join test cases derived from PostgreSQL output. (check-in: 78d58e46 user: drh tags: right-join)
09:39		Remove unnecessary cases for the resolver. (check-in: 5bc9aa68 user: drh tags: right-join)
02:03		Add the omitted "finish_test" to the end of joinA.test. (check-in: 0907505c user: drh tags: right-join)
00:24		New test cases for RIGHT and FULL JOIN. (check-in: 5c2f670e user: drh tags: right-join)
2022-04-18
23:20		Fix the query flattener so that it does not flatten a RIGHT or FULL JOIN into any position of the outer query other than the first. (check-in: 837322aa user: drh tags: right-join)
22:51		New test cases, including one that gets a different result than Postgres. (check-in: 49ea11a4 user: drh tags: right-join)
19:48		Disable the unused EU4_EXPR mode for the IdList object. (check-in: 5bcf4aa3 user: drh tags: right-join)
19:34		Even more test cases. (check-in: 5f4310a1 user: drh tags: right-join)
19:28		New test cases for parenthesized NATURAL FULL JOINs. (check-in: e34250ef user: drh tags: right-join)
18:01		New test case demonstrating the ability to invoke OP_NullRow on a cursor that has never been opened. (check-in: d173edc2 user: drh tags: right-join)
16:23		Merge the btree bug-fix from trunk. (check-in: a333c0b5 user: drh tags: right-join)
16:20		Ensure that left-hand side WITHOUT ROWID tables are set to OP_NullRow prior to running the right-join loop. This fixes a problem introduced by the previous check-in. (check-in: aab7665c user: drh tags: right-join)
16:10		Fix problems with WHERE clauses that follow multiple FULL JOINs. This introduces some new faults in the tests, probably due to something unrelated. (check-in: 95b242d4 user: drh tags: right-join)
15:56		Avoid an assert() failure in allocateSpace() triggered by a corrupt database. dbsqlfuzz f022eb0ce64d27808574d1dcde5cf7d002dabde8. (check-in: 2de7f8cc user: dan tags: trunk)
14:41		Merge the latest fixes from trunk. (check-in: 1ba3b3cc user: drh tags: right-join)
14:15		Improved comment field in the bytecode generated for OP_Column and OP_Rowid. (check-in: 1b2c5cef user: drh tags: trunk)
13:57		Improved comment field in the bytecode generated for OP_Column and OP_Rowid. (check-in: 009bbf80 user: drh tags: right-join)
13:08		New RIGHT JOIN test cases, one of which is currently failing. (check-in: 9168cbbe user: drh tags: right-join)
11:22		Change the row-value initialization subroutine call from within the right-join body subroutine from an issue to an optimization opportunity. (check-in: 829d49f2 user: drh tags: right-join)
10:26		Do not allow an empty table bypass to jump outside of a right-join body subroutine. (check-in: 1549dcd2 user: drh tags: right-join)
10:09		Fix the sqlite3SrcListAppendList() routine so that it correctly adds the JT_LTORJ attribute to the first SrcItem, if needed. (check-in: 07ed0dca user: drh tags: right-join)
09:59		Leave sqlite3ProcessJoin() early if an OOM is encountered in the NATURAL to USING converter. This avoids NULL pointer dereferences further along in the code. (check-in: 0ccb224e user: drh tags: right-join)
00:57		Fix to the coalesce() function generation in the resolver. (check-in: 584bd55e user: drh tags: right-join)
00:04		When converting a NATURAL JOIN into a JOIN USING, make sure to insert the name correctly into the IdList even if it is a wierd quoted name. (check-in: e62156b6 user: drh tags: right-join)
2022-04-17
23:46		Fix to the logic that computes coalesc() functions to resolve USING terms. (check-in: 20388548 user: drh tags: right-join)
22:58		Deal with OP_Return bypass in the RIGHT JOIN subroutine by adding extra OP_Returns where needed. (check-in: 71abe564 user: drh tags: right-join)
21:03		Get docs caught up with the .shxload change. (check-in: e2196448 user: larrybr tags: cli_extension)
20:30		Change OP_Return such that if P3 is 1, the Return is a no-op when the P1 register contains a NULL. (check-in: c9060232 user: drh tags: right-join)
19:22		Move shell extension load functionality into its own .shxload command for usage and code simplicity. (check-in: e2c8c88b user: larrybr tags: cli_extension)
18:46		Further improvements to USING() processing for RIGHT and FULL JOINs. All currently known issues are now resolved. Performace is improved. (check-in: 9fd3f22e user: drh tags: right-join)
00:48		For sqlite3x, rudimentary testing in place as make target shellxtest . More to come. (check-in: b73928be user: larrybr tags: cli_extension)
2022-04-16
23:38		New test cases, one of which is failing, indicating a bug that needs fixing. (check-in: bd5fd684 user: drh tags: right-join)
22:57		Fix the USING to ON translation so that it works correctly for a sequence of two or more joins where one of the joins to the right-hand side of the list is a RIGHT or FULL JOIN. (check-in: 9ffc2b23 user: drh tags: right-join)
19:13		Since the query planner is unable to cope with a LEFT JOIN on the left-hand side of a RIGHT JOIN, detect that situation early and raise a parsing error. This is a temporary measure that needs to be fixed. (check-in: 6d5d6e04 user: drh tags: right-join)
18:33		Additional SELECT trace logic: Show the tree after result-set wildcard expansion but before name resolution. (check-in: a7babf75 user: drh tags: right-join)
17:53		Make shell auto-column work with lots of columns when log() is missing. (check-in: 82366436 user: larrybr tags: trunk)
15:46		Fix a problem with "ON DELETE RESTRICT" and "ON UPDATE RESTRICT" foreign keys in attached databases scanning child tables in the wrong schema. (check-in: 04d5b637 user: dan tags: trunk)
13:55		New test cases. One of the new test cases shows a flaw in the base design of RIGHT JOIN. (check-in: 4c3ce647 user: drh tags: right-join)
12:40		RIGHT JOIN USING now appears to work the same as PG-14. Legacy tests pass. (check-in: 5bfb8624 user: drh tags: right-join)
2022-04-15
21:21		Get sqlite3x and extensions testing from Makefile setup, and some of wapptest changes done to run same. (a WIP) (check-in: d238fcf4 user: larrybr tags: cli_extension)
19:53		Revamp the USING clause processing so that it works (mostly) with RIGHT and FULL JOIN. (check-in: 719c8d92 user: drh tags: right-join)
19:49		Avoid deleting substructure of the Expr node in lookupName() until after the error message is generated. (Closed-Leaf check-in: b8e71766 user: drh tags: right-join-using)
19:27		Progress toward a working USING for FULL JOIN. (check-in: fed2646a user: drh tags: right-join-using)
18:30		When expanding "*" in the result set of a SELECT, do not attach a table name to columns that are in subsequent USING clauses. (check-in: 91530990 user: drh tags: right-join-using)
17:08		The sqlite3ProcessJoin() routine converts a NATURAL JOIN into a JOIN USING so that henceforth the NATURAL keyword can be ignored. (check-in: 8378e1e0 user: drh tags: right-join)
15:47		Enhance the IdList object to exist in a single memory allocation (rather than a separate allocate for the base object and the array of IDs). Also permit an IdList object to store an Expr pointer together with each name. (check-in: 40f3c958 user: drh tags: right-join)
15:15		Add the "3" in the name of the sqlite3ProcessJoin() function. (check-in: b925f72b user: drh tags: right-join)
2022-04-14
20:43		Record the three known big issues with the current RIGHT JOIN design in the join8 test module, with tests that deliberately fail in order to remind us to fix the issues. (check-in: 2c4ee723 user: drh tags: right-join)
19:48		Cherry pick subroutine indentation improvements and the hardening of OP_Gosub from the right-join branch back into trunk. (check-in: 12645f10 user: drh tags: trunk)
19:05		Another instance of indenting a subroutine. (check-in: 73f4036b user: drh tags: right-join)
18:19		Check for interrupts and invoke the progress handler following a Gosub opcode, to avoid and recover from infinite subroutine loops. (check-in: 647211e0 user: drh tags: right-join)
16:34		Rerun the subroutines that compute row-values if necessary from within the RIGHT JOIN body subroutine. (check-in: 9b9038bc user: drh tags: right-join)
15:55		Adjust the output formatting of bytecode listings so that subroutines used to implement subqueries are indented one level. (check-in: 079b7b12 user: drh tags: right-join)
14:58		Disable autoindexing for the RIGHT JOIN loop. (check-in: 402a89e3 user: drh tags: right-join)
14:40		Adjust assert() statements to account for the new always-NULL cursor type added by [4526c5d316508093]. (check-in: 7822faa4 user: drh tags: right-join)
14:19		Previous check-in accidentally inverted a test on an assert(). Fix that. (Closed-Leaf check-in: 5ec4f806 user: drh tags: right-join, right-join-fix)
12:59		Fix assert() statements associated with artifical null-value cursors created by RIGHT JOIN. (check-in: f5bce5f1 user: drh tags: right-join, right-join-fix)
2022-04-13
19:00		Fix a harmless (false-positive) unused variable compiler warning on MSVC. (check-in: 63b04c63 user: drh tags: right-join)
18:32		Make the sqlite3TreeViewSrcList() routine a no-op if called with a NULL SrcList object. (check-in: 185d2720 user: drh tags: right-join)
18:20		Fix an assert() in OP_Column so that it accounts for the new type of pseudo-cursor that always returns NULL for any column. (check-in: 371ddc97 user: drh tags: right-join)
17:41		If the OP_NullRow opcode is given a cursor that has not yet been opened, then go automatically open it to a special pseudo-cursor that allows returns NULL for every column. Used by the new RIGHT JOIN implementation. (check-in: 4526c5d3 user: drh tags: right-join)
16:46		Move the explain comment for the RIGHT-JOIN post-processing loop to the verify beginning of the loop - to make the start of the loop clearer to human bytecode readers. (check-in: 7ed2a271 user: drh tags: right-join)
12:34		This was the original landing of the RIGHT and FULL OUTER JOIN changes to trunk. It was moved back onto a branch due to problems discovered. (check-in: fa9d206f user: drh tags: right-join)
12:12		The rows of a RIGHT JOIN might come out in any arbitrary order. So disable the ORDER-BY/GROUP-BY optimizations if a RIGHT JOIN is involved. (check-in: d168f245 user: drh tags: right-join)
10:49		Fix an assert() in btree.c that might not be true for a corrupt database file. (check-in: dbd8e2e4 user: drh tags: trunk)
03:48		Extension interface cleanup, and rename MetaCommand to DotCommand (to better match docs) (check-in: f78d7b8b user: larrybr tags: cli_extension)
01:52		Add missing VdbeCoverage() macros on new branch byte-code opcodes. (check-in: 218c7167 user: drh tags: right-join)
2022-04-12
20:20		Ensure that the JT_LTORJ bit in the SrcItem.fg.jointype is preserved during query flattening. (check-in: 61259050 user: drh tags: right-join)
18:40		For the bad join type error message "unknown or unsupported join type" remove the "or unsupported" clause, because we now support all valid join types. (check-in: ab0a0562 user: drh tags: right-join)
18:04		Factor out the RIGHT JOIN non-matched row loop from sqlite3WhereEnd(). This reduces the register pressure on that routine and helps it to run faster in the common case where there is no RIGHT JOIN. (check-in: beeecf16 user: drh tags: right-join)
17:43		Merge the latest enhancements from trunk into the right-join branch. (check-in: b3e57ba1 user: drh tags: right-join)
17:02		Earlier detection of corruption in balance_nonroot(). dbsqlfuzz 9191ade77ebd3b7a3356e074957aa85b0c669d14. (check-in: bff4f083 user: dan tags: trunk)
14:23		The multi-index OR optimization does not work for RIGHT join, so disallow it. (check-in: 34c2f7b2 user: drh tags: right-join)
13:46		Always explicitly set each table cursor to NullRow before doing the RIGHT-JOIN unmatched row pass. This is a cheap opcode, and it adds an extra layer of defense against incorrect results. (check-in: a3d14e61 user: drh tags: right-join)
11:02		Modify utility function sqlite3SetString() so that it may be used safely on Parse.zErrMsg. Fuzzer test case "crash-1604e5d76c92574e21e437049dab9b672e06b767.txt". (check-in: 09c5a4ec user: dan tags: trunk)
10:06		Further clarification of Tcl extension intro. (check-in: 29ab6e90 user: larrybr tags: cli_extension)
2022-04-11
23:08		Tcl extension doc, minor clarifications and spelling improvements (check-in: 6ccdd9b7 user: larrybr tags: cli_extension)
23:01		Fix CLI mishandling of SQL "execute" tokens, go and / (check-in: 1a117b03 user: larrybr tags: cli_extension)
21:00		Fix RIGHT JOIN for virtual tables. (check-in: 75a9116e user: drh tags: right-join)
20:15		The query flattener must add TK_IF_NULL_ROW opcodes on substituted values that land on the left operand of a RIGHT JOIN, just as it already does for the right operand of a LEFT JOIN. (check-in: 8e02cdf5 user: drh tags: right-join)
18:54		New test cases added. (check-in: bdd1499c user: drh tags: right-join)
18:42		Fix mis-renditions of help text. (check-in: 1a7a6b6f user: larrybr tags: cli_extension)
17:27		Fix handling of "continue" and "break" from inside the loop for the right operand of a RIGHT JOIN. (check-in: b6e773a2 user: drh tags: right-join)
14:43		Do not attempt the LEFT JOIN strength reduction optimization on a FULL JOIN. (check-in: 7ef3e99a user: drh tags: right-join)
14:26		Show LEFT and RIGHT JOIN processing in the EXPLAIN QUERY PLAN output. (check-in: d91faeff user: drh tags: right-join)
13:13		New test cases. (check-in: d5f6791b user: drh tags: right-join)
12:38		Make a distinction between (1) WHERE clause constraints, (2) ON/USING constraints on outer joins, and (3) ON/USING clause constraints on inner joins. Formerly, there was no distinctionb between 1 and 3, but RIGHT JOIN needs to know the difference. Make RIGHT JOIN aware of this difference and add test cases. (check-in: 0f6f61c3 user: drh tags: right-join)
11:59		Fix some comments that refer to LEFT JOIN that should refer to OUTER JOIN. No changes to code. (check-in: 5be5ede5 user: drh tags: right-join)
11:48		Merge the Expr.w.iJoin name change from trunk into the right-join branch. (check-in: 29927926 user: drh tags: right-join)
11:25		Rename the Expr.w.iRightJoinTable to just Expr.w.iJoin, so that the words "RightJoin" in the former name do not lead readers to believe that this has something to do with RIGHT JOINs in particular. (check-in: e8c00442 user: drh tags: trunk)
10:38		Ensure that the JT_LTORJ flag is preserved when flattening a subquery that is on the left side of a RIGHT JOIN. (check-in: ccb61fb1 user: drh tags: right-join)
08:07		Add embedded doc, Intro to Tcl Extension (check-in: 33591833 user: larrybr tags: cli_extension)
00:54		Show the JT_LTORJ flag in TreeView debugging output. (check-in: 21eb4491 user: drh tags: right-join)
00:21		Do not allow query flattening nor the push-down optimization on the right operand of a RIGHT JOIN. (check-in: 5aa0c9ea user: drh tags: right-join)
2022-04-10
23:48		Cannot use an automatic index on the right table of a RIGHT JOIN because automatic indexes must be WHERE_IDX_ONLY, but the RIGHT JOIN post-processing does not know how to work with an index-only scan. (check-in: beb4401d user: drh tags: right-join)
23:01		Revisit [f84b2beca7197589]: disallow co-routine implementations of tables that are to the left of a RIGHT JOIN, to avoid other complications. (check-in: cf00ebfc user: drh tags: right-join)
20:28		Minor improvements to the sqlite3SrcListShiftJoinType() routine. This started out to be an effort to convert RIGHT JOIN to LEFT JOIN if the join was on the first pair of relations, but that messes up the "*" expansion and so won't work. (check-in: a48902c7 user: drh tags: right-join)
19:51		When the left-most table of a RIGHT JOIN is implemented as a co-routine, make sure all its columns are flushed to NULL when it finishes so that they appear to be NULL during the RIGHT JOIN post-processing. (check-in: f84b2bec user: drh tags: right-join)
17:14		More test cases and bug fixes. (check-in: 140e97fd user: drh tags: right-join)
16:13		More RIGHT JOIN test cases and a bug fix. (check-in: 19e8ad69 user: drh tags: right-join)
09:17		Create parallel C and C++ test/demo shell extensions, with header tweaks to make that work. Fix a bug exposed when multiple shell extensions were loaded. (check-in: 2596e7c4 user: larrybr tags: cli_extension)
2022-04-09
20:11		Add a simple test case. (It is not difficult to create additional test cases that assert, at this point.) (check-in: f2201d5d user: drh tags: right-join)
19:39		Sync w/trunk, for .import fix. (check-in: 861ab023 user: larrybr tags: cli_extension)
18:51		Fix .import bug reported at https://sqlite.org/forum/forumpost/14db09d7e765b819 . zAutoColumn made to deliver characters, not bytes. (check-in: 21e96600 user: larrybr tags: trunk)
18:48		Bug fixes. A basic FULL OUTER JOIN now works. (check-in: 34bbeeb7 user: drh tags: right-join)
14:57		Get tclshext made with Tk, optionally, and make unknown work as in tclsh. (check-in: 43eb311e user: larrybr tags: cli_extension)
14:48		Add byte-code that computes unmatched rows on the right table of a RIGHT JOIN. Compiles, and the code looks semi-reasonable, but still does not run. Incremental check-in. (check-in: 2db5a498 user: drh tags: right-join)
12:27		The interior of the RIGHT JOIN loop is now a subroutine. (check-in: 549f5a7e user: drh tags: right-join)
03:16		A few bits and bobs of code generation toward getting RIGHT JOIN to work. Much more remains to do. (check-in: 55b45431 user: drh tags: right-join)
03:12		Merge the sqlite3WhereMalloc() routine from trunk into the right-join branch. (check-in: b1b3845a user: drh tags: right-join)
03:12		Fix TCL extension build issue. (check-in: 0b3bb0e7 user: larrybr tags: cli_extension)
03:06		The sqlite3WhereMalloc() routine allocates memory that is automatically deleted when the corresponding WhereInfo object is destroyed. (check-in: f237e1d8 user: drh tags: trunk)
02:31		For shell extensions, generate a single-file header. For TCL extension, provide Makefile target, and make Tk opt-in rather than default. (a WIP) (check-in: 2cd49df5 user: larrybr tags: cli_extension)
2022-04-08
19:20		Preliminary code to support RIGHT JOIN. Everything seems to work, except that the code to compute the unmatched rows for the RIGHT JOIN has not yet been added, so the result of a RIGHT JOIN is currently the same as an INNER JOIN. (check-in: 415abd67 user: drh tags: right-join)
17:01		Enhance the sqlite_dbpage fix at check-in 642a0b4752743 from about a month ago such that it still takes a transaction on all attached databases, but it only starts a read transaction for read-only operations, rather than starting a write transaction for everything. (check-in: 8efd61e8 user: drh tags: trunk)
15:11		Improved explanation and commentary on the sqlite3JoinType() routine. One of the error messages changes slightly, but besides that everything works the same. (check-in: 48f2e5a1 user: drh tags: trunk)
12:50		Grammar rules for a hypothetical FOR EACH ROW statement. No new keywords required. However, the sqlite3_complete() machine had to be reworked because of the fact that FOR EACH ROW can contain internal semicolon tokens. (Leaf check-in: 32ae9ee7 user: drh tags: foreachrow-statement)
10:35		Tokenizer and grammar rules sufficient for the MERGE command. (Leaf check-in: 2deee326 user: drh tags: merge-statement)
04:24		Sync w/trunk, including all CLI updates (check-in: ad8b48d6 user: larrybr tags: cli_extension)
03:40		For shell, silence some clang warnings, and cure one bona-fide gripe. (check-in: 52be8668 user: larrybr tags: cli_extension)
03:20		Revamp and simplify shell help extension interface, and provide for scripted shell extensions to be seen in .help output. (check-in: aa785473 user: larrybr tags: cli_extension)
2022-04-07
20:45		Fix two unreachable branches introduced by the recent sqlite3TriggersExist() optimization. (check-in: 1b5475d2 user: drh tags: trunk)
19:06		Enhance the EXPLAIN output formatting in the CLI so that the subroutine that implements the loop body for the multi-index OR optimization is indented. (check-in: c2965fea user: drh tags: trunk)
18:17		The ".testctrl optimizations 0x400000" command disables the generation of OP_ReleaseReg opcodes. OP_ReleaseReg opcodes are usually only generated for SQLITE_DEBUG builds and are used to verify that registers are descoped propertly. But they can get in the way of code understanding when studying bytecode dumps. So this new optimization setting is provided to temporarily turn OP_ReleaseReg opcodes off. (check-in: fa527672 user: drh tags: trunk)
14:13		Fix the parsing of C-style comments in Lemon, as reported by forum post b6edc69548. This has no affect on SQLite itself. (check-in: 201569e0 user: drh tags: trunk)
14:03		Optimization to sqlite3TriggersExist() saves over 700K CPU cycles. (check-in: 5043a350 user: drh tags: trunk)
13:48		Avoid compiler warnings about the new sqlite3Show() debugging routines begin "defined but not used". (check-in: 47ddc269 user: drh tags: trunk)
12:10		Omit an unnecessary initialization in tokenExpr(). (check-in: 8f6ae686 user: drh tags: trunk)
10:11		Fix harmless compiler warnings. (check-in: 61095b5b user: drh tags: trunk)
01:11		Improved technique for parsing the ON and USING clauses of a join is faster and uses less memory. (check-in: 158156a3 user: drh tags: trunk)
2022-04-06
19:46		Faster parsing of the FROM clause in joins for the common case where there is no INDEXED BY clause. (check-in: 848b7a0e user: drh tags: trunk)
18:30		Improvements to the display of AST for DML statements. (check-in: 84c239a0 user: drh tags: trunk)
17:07		Get shell.c past clang preprocessor, silently. (check-in: 588c3512 user: larrybr tags: cli_extension)
16:47		Add sqlite3x target to other makefiles. (check-in: efc9f08d user: larrybr tags: cli_extension)
16:19		Add sqlite3x build target. Cure CLI build warning. Tweak CLI test. (check-in: 45736d46 user: larrybr tags: cli_extension)
15:41		Attempt to show triggers in the TreeView output from DELETE, INSERT, and UPDATE statements. (check-in: b0939d6f user: drh tags: trunk)
12:54		Corrections and updates to the header comment describing the TriggerStep object. No changes to code. (check-in: abb34c08 user: drh tags: trunk)
12:25		Add the sqlite3Show() family of debugging interfaces under SQLITE_DEBUG. No changes to deliverable builds. Rename SQLITE_ENABLE_SELECTTRACE to SQLITE_ENABLE_TREETRACE in ctime.c. (check-in: bc33168c user: drh tags: trunk)
11:08		Rename debugging defines and variables from SELECTTRACE to TREETRACE (and similar) since the functionality has how expanded to include data structures beyond SELECT statements. Should not affect deliverable builds. (check-in: 393fa32e user: drh tags: trunk)
10:37		Add additional tree display routines for DELETE and UPDATE. No changes to deliverable code. (check-in: fbd288ff user: drh tags: trunk)
00:29		Add new diagnostic "sqlite3TreeView" routines for IdList, Upsert, and for INSERT statements. This is all debugging code. There are no changes to release builds. (check-in: f3084122 user: drh tags: trunk)
2022-04-04
20:20		Small performance and size improvement to OP_Found. (check-in: 81587a18 user: drh tags: trunk)
19:58		Tag an always-taken branch using ALWAYS(). (check-in: ad8bc3d7 user: drh tags: trunk)
19:43		Optimizations to the OP_Found opcode save about 600K cycles in speedtest1. (check-in: 5c3357ad user: drh tags: trunk)
18:17		Use unpacked keys for OP_Found in foreign key processing. (check-in: 328dc766 user: drh tags: trunk)
17:27		For shell extension writers, reduce boilerplate (mimicing SQLITE_EXTENSION_INIT# macros) (check-in: 76120813 user: larrybr tags: cli_extension)
15:26		Fix two minor problems in the JSON functions associated with JSON Paths for object labels that require quoting. (check-in: 4a1553b5 user: drh tags: branch-3.38)
15:15		When constructing the JSON Path for the "fullpath" column of the json_tree() and json_each() table-valued functions, be sure to quote object labels where necessary. (check-in: 0fbbe788 user: drh tags: trunk)
14:24		Fix the JSON Path parser so that it will accept zero-length object labels. Forum thread c082aeab43. (check-in: 84fe95d2 user: drh tags: trunk)
11:38		Performance optimization and stronger assert()s in the comparison opcodes. (check-in: e0305e64 user: drh tags: trunk)
06:33		For TCL extension: Adjust provided "gui" command, and document it. For shell: Separate shell variables from binding parameters, mainly so they live longer, in the shell DB. Add .vars dot command to reflect this separation, and specialized for shell variables. Much code shuffling to share code between .parameters and .vars commands. (check-in: fa492ff5 user: larrybr tags: cli_extension)
01:12		Only invoke sqlite3VdbeClearObject() from a single location, so that the compiler is more likely to in-line the code. Performance increase and size reduction. (check-in: c6947a96 user: drh tags: trunk)
2022-04-03
22:35		Performance optimization in the sqlite3VdbeHalt() routine. (check-in: 9564d72a user: drh tags: trunk)
20:39		Performance optimization and size reduction in the OP_Halt opcode. (check-in: 21948e6e user: drh tags: trunk)
19:13		Omit the Vdbe.runOnlyOnce flag (simplifying the prepared statement implementation) and accomplish the same result by adding an "OP_Expire 1 1" opcode to prepared statements that would normally have runOnlyOnce set. (check-in: 6e20e1c4 user: drh tags: trunk)
10:42		Performance optimization and slight size reduction in the OP_Transaction opcode. (check-in: 7bee8c19 user: drh tags: trunk)
2022-04-02
22:47		Expand the getVarint32() macro in a few places, as the C-compiler seems to be able to optimize better when that macro is expanded manually. (check-in: cd4fe34b user: drh tags: trunk)
20:08		Fix harmless compiler warnings. (check-in: 8a3a3486 user: drh tags: trunk)
19:21		Ensure that a zero-blob does not cause in invocation of memcpy() with a zero length and a NULL source pointer. (check-in: 35441eb5 user: drh tags: trunk)
15:19		Minor loop optimization in OP_MakeRecord. (check-in: 4350983b user: drh tags: trunk)
14:30		In-line the sqlite3VdbeSerialPut() routine into the OP_MakeRecord opcode. This allows some duplicate comparisons to be omitted, resulting in a size reduction and performance increase. (check-in: 6f4d6f21 user: drh tags: trunk)
2022-04-01
21:01		The putVarint32() macro does not optimize well. So expand it into in-line code in places were performance is an issue. (check-in: 390c239e user: drh tags: trunk)
20:39		Loop optimization in the OP_MakeRecord opcode. (check-in: 47a61fbd user: drh tags: trunk)
20:19		It is not necessary to de-ephermeralize the output registers in the OP_ResultRow opcode. Omit that step for a size reduction and performance increase. (check-in: 8a07745a user: drh tags: trunk)
19:13		There is no need for sqlite3_step() to check for an OOM condition prior to starting up. (check-in: 44be7f46 user: drh tags: trunk)
19:04		Omit the Vdbe.doingRerun field for a slight size reduction and performance gain. (check-in: e93297a9 user: drh tags: trunk)
18:45		New macro ROUND8P() which works like ROUND8() but assumes that the input is already a multiple of the size of a pointer. It becomes a no-op for 64-bit machines, giving a small size reduction and speed boost. (check-in: d126f304 user: drh tags: trunk)
18:19		Provide and use a version of sqlite3VdbeFreeCursor() that guarantees the cursor pointer is not NULL. This saves a few bytes of code space and a few CPU cycles. (check-in: cb5e6f8e user: drh tags: trunk)
17:23		Remove an unnecessary branch from sqlite3VdbeReset(). (check-in: a7d79560 user: drh tags: trunk)
17:01		Refactor the Vdbe.iVdbeMagic field into Vdbe.eVdbeState. Split the RUNNING state into separate RUNNING and READY. This gives a size reduction and performance increase. (check-in: 5a50a42f user: drh tags: trunk)
16:22		Avoid a harmless uninitialized variable warning in PRAGMA incremental_vacuum. (check-in: 6d976f90 user: drh tags: trunk)
15:31		Have the sqlite3_context object carry the encoding for the prepared statement that it represents, so that sqlite3_result() and similar can set the encoding according to the prepared statement, even if the database encoding has changed. dbsqlfuzz c409b10d0a6bccf78ab00f47e1d29d42ee5b3565 (check-in: d4e19314 user: drh tags: trunk)
2022-03-31
21:15		Split out the RUN state into separate READY and RUN states. (Closed-Leaf check-in: d698826b user: drh tags: vdbe-state-refactor)
20:04		Rename Vdbe.iVdbeMagic to eVdbeState. Remove unnecessary states. This is a preliminary step toward splitting RUN_STATE out into several other states. (check-in: ff91191d user: drh tags: vdbe-state-refactor)
16:09		Fix harmless compiler warnings. (check-in: b916087a user: drh tags: trunk)
11:12		Refinement to [3f9887d4a58cbfdb]: The SQLITE_CONSTRAINT error should only be returned if the prepared statement came from sqlite3_prepare_v2(). The legacy sqlite3_prepare() is documented to return only SQLITE_ERROR. (check-in: f2d9262e user: drh tags: trunk)
04:05		Make CLI build after an incomplete rename completed. (check-in: 4f11e639 user: larrybr tags: cli_extension)
03:45		For TCL extension: Add Tk and means to run it, optionally. Implement ScriptSupport interface. For shell: Get scripting support thru an object interface like the others. Rename OutMode* to Export*. For both: Provide a way to pass arguments to an extension upon load and get them into TCL's argv. (check-in: d2446e50 user: larrybr tags: cli_extension)
2022-03-30
17:56		Faster and slightly smaller implementation of sqlite3Step(). (check-in: c6901a8c user: drh tags: trunk)
17:36		Small size reduction and performance increase in sqlite3FinishCoding(). (check-in: 9248ce50 user: drh tags: trunk)
11:12		Incorporate fix noted as absent by forum post https://sqlite.org/forum/forumpost/aefd62fcc7ebd8b6 (check-in: 336851b1 user: larrybr tags: branch-3.38)
2022-03-29
22:57		In setResultStrOrError(), if the input string pointer is NULL and hence the value gets set to an SQL NULL, then the Mem.enc field is uninitialized. So do not read it. This is a harmless OSSFuzz/ASAN found problem. (check-in: 47d0b1c4 user: drh tags: trunk)
21:11		For TCL extension: Cleanup TCL library interaction and interpreter management. Group code into more purpose oriented functions. Add .unknown dot command, delegating to TCL commands with "dot" names. Drop planned .eval new dot command. For shell: Implement undocumented .unknown dot command, doing little. Make dispatcher call .unknown's implementation for unknown dot command. Fix a command lookup bug exposed by above change to unknown handling. Add .eval dot command. Add options to .x command aimed at control of errors in command sequences. (a WIP) Make dispatcher report ambiguous dot command lookups, even with no extension. (check-in: 7616a6f4 user: larrybr tags: cli_extension)
20:50		Ensure that sqlite3VdbeMemSetStr() always leaves the value in a consistent state even if there is an error. (check-in: c86ab289 user: drh tags: trunk)
19:19		Reverse the order of two tests to stop a harmless initialized value warning from MSAN - reported by OSSFuzz. (check-in: 800b8fda user: drh tags: trunk)
13:16		Avoid unnecessary calls to balance() from sqlite3BtreeDelete(). (check-in: d0966d1b user: drh tags: trunk)
01:43		Fix the sqlite3_result_xxxxx() routines so that they all check for and perform any necessary text encoding conversions and check for oversize strings and BLOBs. Thus those checks can be done where they are most efficient and avoided in cases like OP_Function where they are more expensive. (check-in: d50b162b user: drh tags: trunk)
2022-03-28
21:42		TCL extension polished and more smoothly integrated. A couple of bugs related to takedown fixed. Help for added features. Code cleaned up and commented. (check-in: 4ee7df11 user: larrybr tags: cli_extension)
18:34		Further size and performance optimizations for sqlite3VdbeMemSetStr(). (check-in: 310a3e10 user: drh tags: trunk)
17:34		Slightly smaller and faster sqlite3VdbeMemSetStr(). (check-in: 06928e74 user: drh tags: trunk)
15:06		Performance increase in the loop that frees an opcode array. (check-in: 4ccebb86 user: drh tags: trunk)
14:56		Another small performance gain by using sqlite3DbFreeNN(). (check-in: daa924af user: drh tags: trunk)
14:18		Use sqlite3DbFreeNN() instead of sqlite3DbFree() in a few hot spots for better performance. (check-in: b12de0ec user: drh tags: trunk)
13:22		Performance optimization in the memsys5 memory allocator. (check-in: 94913323 user: drh tags: trunk)
05:57		In TCL shell extension, wrap shell DB for use from TCL. (check-in: 41cc8433 user: larrybr tags: cli_extension)
2022-03-27
23:33		TCL extension made to use shell's line inputter with prompting and line editing/history. (check-in: fbf0eb0d user: larrybr tags: cli_extension)
03:08		In TCL shell extension, add TCL command "udb". This gets the TCL environment to near parity with pre-extended utility, except for query result display (TBD soon). (check-in: c9aa76bf user: larrybr tags: cli_extension)
2022-03-26
17:39		Merge the version 3.38.2 patches with the begin-concurrent-pnu-wal2 branch to create this new sub-branch. (check-in: 73a15377 user: drh tags: begin-concurrent-wal2-3.38)
14:14		Merge the version 3.38.2 patches into the reuse-schema-3.38 sub-branch. (check-in: 07fc5c6e user: drh tags: reuse-schema-3.38)
13:51		Version 3.38.2 (check-in: d33c709c user: drh tags: release, branch-3.38, version-3.38.2)
2022-03-25
20:39		Sync w/trunk (check-in: 8402e5e7 user: larrybr tags: cli_extension)
19:16		The "PRAGMA writable_schema=ON" flag should not allow OOM errors to pass while parsing the schema. dbsqlfuzz 9cc49e1a53e1cef8e3a1496a88c683aa20483163. (check-in: 4977d8f4 user: drh tags: branch-3.38)
18:27		CLI preparation for shell's db to be used from TCL (check-in: 57501e7f user: larrybr tags: cli_extension)
17:43		Do not allow an #ifdef inside of an assert(), as gcc tells us that is not portable. (check-in: b193156c user: drh tags: branch-3.38)
06:46		Get shell TCL extension more smoothly integrated. (check-in: 29fd246f user: larrybr tags: cli_extension)
01:37		Bump the version number to 3.38.2. (check-in: bb3ef206 user: drh tags: branch-3.38)
01:31		Fix the Bloom-filter optimization so that it does not use IS NULL or IS NOT NULL constraints from the WHERE clause when operating on a LEFT JOIN. Forum thread 031e262a89b6a9d2. (check-in: 8246bfbc user: drh tags: branch-3.38)
01:23		Fix the Bloom-filter optimization so that it does not use IS NULL or IS NOT NULL constraints from the WHERE clause when operating on a LEFT JOIN. Forum thread 031e262a89b6a9d2. (check-in: 1a6328f2 user: drh tags: trunk)
2022-03-24
14:01		The "PRAGMA writable_schema=ON" flag should not allow OOM errors to pass while parsing the schema. dbsqlfuzz 9cc49e1a53e1cef8e3a1496a88c683aa20483163. (check-in: a7abb725 user: drh tags: trunk)
12:49		TCL shell extension delegates to dot commands (check-in: 35394310 user: larrybr tags: cli_extension)
2022-03-23
21:03		Scripting support roughed in, with a demo extension. More work is needed to make this truly useful. Tests are missing. (check-in: abf0316b user: larrybr tags: cli_extension)
10:04		Use trickery to code the UTF-8 BOM for the --bom option on .output, .once, and .excel in the CLI, to work around a warning in some Microsoft compilers. Fossil forum post bd0844268f0fab71. (check-in: 43143ad1 user: drh tags: trunk)
2022-03-22
23:47		Ensure that database corruption does not cause the cursor passed into sqlite3BtreeDelete() to be invalid. dbsqlfuzz 209bf3de9ee11ae440848ab9bc9c13858f9be2e4. (check-in: 780d00d4 user: drh tags: branch-3.38)
23:33		Ensure that database corruption does not cause the cursor passed into sqlite3BtreeDelete() to be invalid. dbsqlfuzz 209bf3de9ee11ae440848ab9bc9c13858f9be2e4. (check-in: a85126f9 user: drh tags: trunk)
20:02		Harden the xShmLock method of both the unix and Windows VFSes so that they are robust against being invoked when the SHM file is not open. (check-in: 06d4c4d1 user: drh tags: branch-3.38)
19:41		Harden the xShmLock method of both the unix and Windows VFSes so that they are robust against being invoked when the SHM file is not open. (check-in: 67d8b434 user: drh tags: trunk)
11:22		Make the sqlite3_serialize() and sqlite3_deserialize() interfaces accessible to loadable extensions. (check-in: 81f8746b user: drh tags: trunk)
03:03		expose sqlite3_{deserialize,serialize}() in sqlite3ext.h (Closed-Leaf check-in: da874180 user: larrybr tags: extapi-serializing)
02:53		Create new branch named "extapi-serializing" (check-in: a1220a21 user: larrybr tags: extapi-serializing)
2022-03-21
20:08		Do not allow an #ifdef inside of an assert(), as gcc tells us that is not portable. (check-in: c7a2047e user: drh tags: trunk)
18:48		Some branches are no longer reachable after the previous change. Mark them accordingly. Also improve comments. (check-in: 88d69f60 user: drh tags: trunk)
18:23		Strengthen the defenses against corrupt databases in the sqlite3BtreeInsert() function of the btree module. Forum post c7ec29905f. (check-in: 883fec9c user: drh tags: branch-3.38)
18:17		Strengthen the defenses against corrupt databases in the sqlite3BtreeInsert() function of the btree module. Forum post c7ec29905f. (check-in: 4df301c8 user: drh tags: trunk)
16:34		The previous assert() fix was not correct when building with -DSQLITE_ENABLE_OFFSET_SQL_FUNC. This is the fix. (check-in: b4210bc0 user: drh tags: branch-3.38)
15:42		The previous assert() fix was not correct when building with -DSQLITE_ENABLE_OFFSET_SQL_FUNC. This is the fix. (check-in: c0a4767f user: drh tags: trunk)
13:55		Fix the assert() that attempts to verify that the table-reference to index-reference translator finds all required translations. Forum post 929168fdd6. (check-in: ccd2a2a7 user: drh tags: branch-3.38)
13:47		Fix the assert() that attempts to verify that the table-reference to index-reference translator finds all required translations. Forum post 929168fdd6. (check-in: fa9bd1fc user: drh tags: trunk)
11:50		Fix an assert() in sqlite3TableAffinity() that might have been false if there was a prior syntax error in the query. (check-in: 940f1a40 user: drh tags: branch-3.38)
11:32		Fix an assert() in sqlite3TableAffinity() that might have been false if there was a prior syntax error in the query. (check-in: 23fdb169 user: drh tags: trunk)
2022-03-19
15:19		In the CLI, disable the zipfile and sqlar extensions in --safe mode. (check-in: d8b65a2d user: drh tags: trunk)
14:27		macro-ize extension boiler-plate, improve exit processing (check-in: 7996d3a3 user: larrybr tags: cli_extension)
12:53		Fix the zipfile extension so that it knows that a zero-length BLOB returns a NULL pointer. Forum post ae86934905. (check-in: b75c6bad user: drh tags: branch-3.38)
12:48		Fix the zipfile extension so that it knows that a zero-length BLOB returns a NULL pointer. Forum post ae86934905. (check-in: 5f6d5673 user: drh tags: trunk)
2022-03-18
16:00		Further migration to centralized error reporting (check-in: 89808800 user: larrybr tags: cli_extension)
2022-03-17
23:49		Change a conditional into an assert() due to the change in [387ab17b8a0a4b87]. (check-in: 13b58486 user: drh tags: trunk)
22:09		Add a 4th output code (value 3) from the sqlite3_vtab_distinct() interface that indicates that SQLite wants distinct results that are sorted. (check-in: 135d8b97 user: drh tags: trunk)
18:03		Updates a comment and an assert(). (Closed-Leaf check-in: 0c5be14a user: drh tags: vtab-distinct-ordered)
11:37		Another fix for a corner-case in sqlite_offset() - this one having to do with computed virtual columns in a WITHOUT ROWID table. Also an assertion fault problem with sqlite_offset(). (check-in: 9e72cae2 user: drh tags: branch-3.38)
11:23		Another fix for a corner-case in sqlite_offset() - this one having to do with computed virtual columns in a WITHOUT ROWID table. (check-in: 84ddd19b user: drh tags: trunk)
2022-03-16
19:28		Add extra test cases. (check-in: 0a922d14 user: dan tags: vtab-distinct-ordered)
14:51		Update the sqlite3_vtab_distinct() documentation. (check-in: 88929d85 user: drh tags: vtab-distinct-ordered)
12:06		Experimental change to have sqlite3_vtab_distinct() return 3 to indicate that results should sorted and duplicates may be removed. (check-in: 11f45088 user: dan tags: vtab-distinct-ordered)
2022-03-15
17:57		Make CLI complain about incomplete input at EOF. Fix for regression reported at https://sqlite.org/forum/forumpost/718f489a43be3197 (check-in: 72029cf7 user: larrybr tags: trunk)
10:07		For CLI, begin centralizing argument checking/complaining. (check-in: 3457f87c user: larrybr tags: cli_extension)
2022-03-14
23:50		Calling sqlite3_value_dup() on a pointer value results in an ordinary NULL. Forum post ae8592cc73. Test cases in TH3. (check-in: fff1243b user: drh tags: trunk)
22:58		Fix an assert() statement in the covering index optimization for the corner case of dealing with an sqlite_offset() SQL function call. (check-in: 3950b7d0 user: drh tags: trunk)
20:39		Disable trigger coding while running sqlite3_declare_vtab(). dbsqlfuzz 97e1865771b4226f29e6e482411c1cae14133f50 (check-in: 5b8a0460 user: drh tags: branch-3.38)
20:31		Disable trigger coding while running sqlite3_declare_vtab(). dbsqlfuzz 97e1865771b4226f29e6e482411c1cae14133f50 (check-in: 387ab17b user: drh tags: trunk)
16:54		Foreign key constraint failures should return SQLITE_CONSTRAINT_FOREIGNKEY even if there is a RETURNING clause. See forum thread e6be6e82c86aa59b. (check-in: 3f9887d4 user: drh tags: trunk)
2022-03-12
15:30		Merge the version 3.38.1 patches into a sub-branch of reuse-schema. (check-in: 934276d1 user: drh tags: reuse-schema-3.38)
15:21		Merge the latest trunk changes into the reuse-schema branch. (check-in: f3fa8196 user: drh tags: reuse-schema)
15:11		Merge the latest trunk changes into the begin-concurrent-pnu-wal2 branch. (check-in: 0071d9da user: drh tags: begin-concurrent-pnu-wal2)
15:04		Merge the lates trunk enhancements into the wal2 branch. (check-in: bafaefc6 user: drh tags: wal2)
14:54		Merge trunk enhancements, including 3.38.1 patches, into the begin-concurrent-report branch. (Leaf check-in: c4a61135 user: drh tags: begin-concurrent-report-3.28)
14:47		Merge the latest trunk enhancements, including the 3.38.1 patches plus additional performance enhancements, into the begin-concurrent branch. (check-in: aa8b5e95 user: drh tags: begin-concurrent)
13:37		Version 3.38.1 (check-in: 38c210fd user: drh tags: release, branch-3.38, version-3.38.1)
2022-03-11
22:59		CLI extension's registerMetaCommand done, and used by test_shellext.c (demo code) (check-in: 9be5e0b5 user: larrybr tags: cli_extension)
15:42		Add a comment linking a part of the UPDATE constraint checking code to one of the corresponding TH3 test cases. (check-in: 0606e8e9 user: drh tags: trunk)
15:16		Fix a harmless compiler warning. (check-in: 5d739aff user: drh tags: trunk)
14:20		Fix a harmless compiler warning and restore performance in the sqlite3BtreeIndexMoveto() last-page optimization. (check-in: 8b032293 user: drh tags: trunk)
12:40		Fix a case in fts5 where a corrupt database could cause a crash. (check-in: 1894577c user: drh tags: branch-3.38)
12:02		Fix a case in fts5 where a corrupt database could cause a crash. (check-in: 5e95df26 user: dan tags: trunk)
2022-03-10
23:37		Another corruption detection case in the sqlite3BtreeIndexMoveto() last page optimization. (check-in: 531e6ad0 user: drh tags: trunk)
22:54		In the sqlite3BtreeIndexMoveto() last-page optimization, make sure to return SQLITE_CORRUPT if corruption is detected. (check-in: 4ef19ba9 user: drh tags: trunk)
21:14		Stronger defenses against corrupt schemas in the ALTER TABLE logic. (check-in: 29744e69 user: drh tags: branch-3.38)
21:04		Stronger defenses against corrupt schemas in the ALTER TABLE logic. (check-in: 13fbde28 user: drh tags: trunk)
19:53		Doc improvements re sqlite3_column_text*() endianness (no code change) (check-in: a37c20d4 user: larrybr tags: branch-3.38)
19:44		Amend sqlite3_column_*() doc table. (no code change) (check-in: 1f473099 user: larrybr tags: trunk)
16:28		Prevent a NULL-pointer dereference when trying to parse a illegal schema entry that contains a window function while doing a RENAME COLUMN. Forum post ec2a2e0deb. (check-in: 2c393228 user: drh tags: branch-3.38)
16:26		Prevent a NULL-pointer dereference when trying to parse a illegal schema entry that contains a window function while doing a RENAME COLUMN. Forum post ec2a2e0deb. (check-in: 58de3c2b user: drh tags: trunk)
16:01		Refactor Window.pFunc into Window.pWFunc to disambiguate from other uses of the variable or field named "pFunc". (check-in: d9475ebc user: drh tags: trunk)
11:48		Only run atof1.test on x86_64 machines. (check-in: 4173819c user: drh tags: trunk)
11:10		Improve formatting of changes doc for this branch (Leaf check-in: 2129cfb8 user: larrybr tags: shell-tweaks)
02:23		Mention that sqlite3_column_text16() returns have native endianness (check-in: 25b7f88f user: larrybr tags: trunk)
01:15		Check-in [642a0b4752743216] fixing sqlite_dbpage is not exactly correct. This patch should fix it. (check-in: b6c4c8a0 user: drh tags: branch-3.38)
01:10		Check-in [642a0b4752743216] fixing sqlite_dbpage is not exactly correct. This patch should fix it. (check-in: 6ba36714 user: drh tags: trunk)
2022-03-09
22:16		Sync w/Trunk, finish doc/sh_tweak_changes.md (check-in: 5a1797c2 user: larrybr tags: shell-tweaks)
18:30		Further refinements to the sqlite_offset() fix from [6029514b08b88e3f]. (check-in: 98799d7b user: drh tags: branch-3.38)
18:29		Further refinements to the sqlite_offset() fix from [6029514b08b88e3f]. (check-in: 6f838305 user: drh tags: trunk)
14:29		Fix the sqlite_dbpage virtual table so that it starts a write transaction on all attached schemas. (check-in: e92c4fdb user: drh tags: branch-3.38)
14:22		Fix the sqlite_dbpage virtual table so that it starts a write transaction on all attached schemas. (check-in: 642a0b47 user: drh tags: trunk)
13:22		Do not use va_arg() as an l-value, because AIX does not allow that, from what we are told. (check-in: 46d1a6de user: drh tags: trunk)
12:20		Improve the defenses against bad pathnames input into the findCreateFileMode() function of os_unix.c in order to quiet static-analyzer warnings. There are no demonstrated problems in the prior code, but this change makes the code easier to prove correct and more robust against future changes. (check-in: a9cda389 user: drh tags: trunk)
2022-03-08
16:44		(WIP) Add DB-dispatch for dot commands upon shell extension load. (check-in: 19f2a747 user: larrybr tags: cli_extension)
16:12		Fix a potentially uninitialized local variable in the ".import" command of the CLI - introduced by [741651fd4b1b776b]. This same change is part of the nearby "Fix compiler warnings" check-in. (check-in: ce9e3d90 user: drh tags: branch-3.38)
15:49		Fix a minor typo in a comment. (check-in: cf61419f user: drh tags: trunk)
13:59		Fix compiler warnings. (check-in: 5e30c6ea user: drh tags: trunk)
03:10		Add a .md summarizing CLI changes on this branch and their motivation or purpose. (check-in: 5ddccc2f user: larrybr tags: shell-tweaks)
01:02		CLI regularization and code cleanup (check-in: 16af0e45 user: larrybr tags: cli_extension)
2022-03-07
19:00		Sync with trunk (check-in: 1194093a user: larrybr tags: cli_extension)
18:42		Add multi-threaded test for the features on this branch. Fix a misuse of xShmLock(). (check-in: 1ec05168 user: dan tags: begin-concurrent-pnu-wal2)
18:38		Disable an assert in moveToRoot() when the database is corrupt. Forum post e9a176b7bd. (check-in: ab744a5d user: drh tags: branch-3.38)
18:32		Disable an assert in moveToRoot() when the database is corrupt. Forum post e9a176b7bd. (check-in: ae464a18 user: drh tags: trunk)
17:19		In the stay-on-last-page optimization for sqlite3BtreeIndexMoveto() (check-in [0057bbb508e7662b] about 16 hours ago), be sure to clear the BTCF_ValidOvfl flag, since the overflow cache is invalidated by the search on the last page. OSSFuzz issue 45329. (check-in: 0021bebc user: drh tags: trunk)
16:40		Do not allocate new Trigger objects in the parser following a syntax error, to avoid violating invariants associated with Expr nodes. See forum thread 2024e94071ef1531 for more information. (check-in: 369d2404 user: drh tags: branch-3.38)
16:22		Do not allocate new Trigger objects in the parser following a syntax error, to avoid violating invariants associated with Expr nodes. See forum thread 2024e94071ef1531 for more information. (check-in: 5e0ed49b user: drh tags: trunk)
14:59		Fix the code generated for vector IN operator constraints on virtual tables so that they work even if the "omit" field in the sqlite3_index_info object is off. This has apparently never worked correctly before. Presumably, nobody has ever before written a virtual table that can use vector IN operator constraints and that relies on bytecode to double-check the constraints. Test cases in TH3. Problem discovered by dbsqlfuzz cab8e26194a40147627094f3c6849c0a7b1e0310. (check-in: 4a2040d5 user: drh tags: branch-3.38)
14:51		Fix the code generated for vector IN operator constraints on virtual tables so that they work even if the "omit" field in the sqlite3_index_info object is off. This has apparently never worked correctly before. Presumably, nobody has ever before written a virtual table that can use vector IN operator constraints and that relies on bytecode to double-check the constraints. Test cases in TH3. Problem discovered by dbsqlfuzz cab8e26194a40147627094f3c6849c0a7b1e0310. (check-in: 21b65657 user: drh tags: trunk)
01:29		Optimizations to sqlite3BtreeIndexMoveto() avoid unnecessary comparisons if the cursor is already near the end of the table and is not moving far. This case is more common that you would expect. The optimization saves almost 4 million CPU cycles. (check-in: 0057bbb5 user: drh tags: trunk)
01:28		Fix the .import problem in the CLI reported by forum post 72a024c957. (check-in: d753285b user: drh tags: branch-3.38)
00:14		Disentangle variable use in last checkin (check-in: 4c3a0260 user: larrybr tags: trunk)
2022-03-06
23:41		For CLI .import, revert to importing into temp or main when given table is found there and no -schema option used. And plug an obscure leak. (check-in: bf9d1278 user: larrybr tags: trunk)
20:22		Fix obsolete but harmless comments in btree. No changes to code. (check-in: 4838b888 user: drh tags: trunk)
17:53		(WIP) Shell meta-command objectification done, ready for dbShell to be loaded and used for extension meta-commands (check-in: a88983ec user: larrybr tags: cli_extension)
11:44		The sqlite_offset() function should be non-deterministic. dbsqlfuzz 3df8230bb940870db87ffca2c0fc759c1e7fa356. (check-in: 80837576 user: drh tags: branch-3.38)
11:43		The sqlite_offset() function should be non-deterministic. dbsqlfuzz 3df8230bb940870db87ffca2c0fc759c1e7fa356. (check-in: e1a185e6 user: drh tags: trunk)
03:22		(WIP) shell extension load and ShellState internal/external partitioning in place, passing shell tests with trivial exceptions (check-in: a85679d3 user: larrybr tags: cli_extension)
00:01		Remove a NEVER() associated with sqlite_offset()> (check-in: bf2501e2 user: drh tags: branch-3.38)
2022-03-05
23:52		Remove a NEVER() associated with sqlite_offset()> (check-in: e29dffcd user: drh tags: trunk)
20:20		Fix the 'localtime' modifier in date/time functions so that it preserves fractional seconds. Forum post 2ffbaa2c3fd7fb82. (check-in: 6833f4ae user: drh tags: branch-3.38)
20:12		Fix the 'localtime' modifier in date/time functions so that it preserves fractional seconds. Forum post 2ffbaa2c3fd7fb82. (check-in: 1c875b07 user: drh tags: trunk)
19:46		Increase the version number to 3.38.1. (check-in: cd87e77d user: drh tags: branch-3.38)
19:39		Cherry-pick all bug fix changes since the 3.38.0 release. (check-in: 45a5d5ac user: drh tags: branch-3.38)
19:36		Further improvements to the sqlite_offset() function. (check-in: 4230e2f5 user: drh tags: trunk)
14:44		Fix the sqlite_offset() function so that it gives the correct answer even if the argument is a virtual column in an index-only query. Test cases in TH3. (check-in: 6029514b user: drh tags: trunk)
11:57		Update obsolete text in the ICU README.txt file talking about SQLite's robustness (or lack thereof) in the face of corrupt database files. (check-in: dc88fc62 user: drh tags: trunk)
2022-03-04
20:54		Do try to evaluate the Bloom filter on a LEFT JOIN early, as doing so essentially converts it into an INNER JOIN. See forum thread 544af7eee2. (check-in: d46d0e67 user: drh tags: trunk)
16:28		When setting an sqlite3_value object to a pointer value, make sure any prior memory allocations associated with that object have been cleared first. dbsqlfuzz 33f842d1a09afaad5f078c3e1162a54b78e5f2ab. (check-in: 31e1bde4 user: drh tags: trunk)
2022-03-03
19:40		Restore the ability to push-down OR subterms of the WHERE clause when processing a multi-index OR. (check-in: d71fb6fd user: drh tags: trunk)
16:48		Make sure the xParseCell and xCellSize methods of the MemPage object are initialized consistently even if the page is detected as being corrupt. dbsqlfuzz fd21f341f3b4f582401d2feb2a1c0c4cc2c26caa. (check-in: 725a0643 user: drh tags: trunk)
15:59		Fix for the problem identified in forum post 0cd8e058bf: When evaluating an multi-index OR, do not push down auxiliary WHERE clause terms that involve subqueries into the OR-subqueries. Otherwise, the covering-index optimizer might convert table-references into index-references for the particular OR index that is active for the branch in which the subquery subroutine is coded, and those index-references will not work if the subquery subroutine is invoked from a different OR branch that uses a different index. (check-in: 61a1c6db user: drh tags: trunk)
15:00		Add the new OP_BeginSubrtn opcode (which is really an alias for OP_Integer) and make other changes so that the span of a subroutine that implements a subquery is more readily apparent in bytecode listings. (check-in: b8226748 user: drh tags: trunk)
2022-03-02
21:04		Bloom filter pull-down optimization is incompatible with Skip-Scan. Make sure the query planner does not try to to both. Forum post 50a1bbe08ce4c29c. (check-in: ad3ffa1a user: drh tags: trunk)
17:50		Faster version of sqlite3VdbeMemRelease(). (check-in: 86c5fa2f user: drh tags: trunk)
13:45		Reinstate the releaseMemArray() performance optimization of [bb520293d8c11518] with corrections. (check-in: 1291080d user: drh tags: trunk)
11:39		The optimization at [ece326db50201937] is not quite right, so back it out for now. (check-in: b218a4b9 user: drh tags: trunk)
01:02		Fix a harmless compiler warning. (check-in: 6497997a user: drh tags: trunk)
00:50		The performance optimizations at [bb520293d8c11518] is not quite right, so it has to be backed out. (check-in: 15f73b12 user: drh tags: trunk)
2022-03-01
20:15		The MemPage.aDataEnd field should point to the end of the data buffer for the page, not just the end of the usable portion of that buffer. The purpose aDataEnd is to detect cells that overflow the page, and that won't work on a page with reserved bytes and a cell that starts in the reserved region, unless the boundary is at the very end of the page. Chromium issue 1276294. (check-in: f839c0bc user: drh tags: trunk)
19:19		Fix a minor typo in a comment. (check-in: 86ba06aa user: drh tags: trunk)
16:22		Fix two assert() statements in btree.c which were not true in the case of a corrupt database file. Forum post 14819f2063. (check-in: 3b36ed79 user: drh tags: trunk)
15:48		Fix slightly-incorrect assert() statements. Forum post f1e83b77b5ff37db (check-in: 3c9f5c9d user: drh tags: trunk)
14:13		Increase the max_page_count on ROLLBACK, if necessary, so that it is sufficient to cover the entire database. Fix for the problem identified by forum post 3b9e894312. (check-in: 12c01216 user: drh tags: trunk)
2022-02-28
16:44		Fix the Xfer-optimization on the INSERT statement so that it is omitted if there is a RETURNING clause, since that optimization is not able to deal with RETURNING. See forum thread 595e132f71 for details. (check-in: 1d3760a5 user: drh tags: trunk)
14:26		Reorganize the bits in Mem.flags. Free up one bit for reuse. (check-in: fe454291 user: drh tags: trunk)
13:38		Expand the comment on the definition of the Mem object to better explain the meanings of the various flag bits. (check-in: f2f04260 user: drh tags: trunk)
12:16		Performance optimization in initMemArray() saves about 750K cycles with only a 4-byte increase in code size. (check-in: c3e9cd5e user: drh tags: trunk)
12:08		The performance increase in the previous check-in of this branch was due to the revised loop in initMemArray() and reordering fields of Mem - not the call the memcpy(). Changing the code to avoid memcpy() results in an even better gain, and code that is far less dodgy. (Closed-Leaf check-in: d74aa979 user: drh tags: optimize-init-mem)
03:25		An optimization to initMemArray() saves almost 500K cycles. But it seems a little dodgy. I want to think about this more before merging to trunk. Perhaps there is a cleaner way to accomplish the same. (check-in: 7fefd867 user: drh tags: optimize-init-mem)
02:35		Avoid unnecessary deinitialization of the Mem.flags field. (check-in: bb520293 user: drh tags: trunk)
2022-02-27
21:10		Cache values of UnpackedRecord.aMem[0] into new fields of UnpackedRecord. This avoids extra indirections and saves about 750K cycles. (check-in: 7cf2d1f0 user: drh tags: trunk)
18:54		Bypass a single branch in vdbeRecordCompareString() in the common case, for a performance increase of over 600K CPU cycles. (check-in: 36f0f07e user: drh tags: trunk)
2022-02-26
23:01		Remove an unnecessary local variable for a small performance increase and size reduction. (check-in: 9bda611f user: drh tags: trunk)
14:39		Allow the OP_Column opcode to read rows that are larger than SQLITE_LIMIT_LENGTH as long as the specific field being read out is less than or equal to SQLITE_LIMIT_LENGTH. (check-in: 1bf48489 user: drh tags: trunk)
2022-02-25
20:11		Revise the initialization processing for OP_Column to make it about 1.8 million cycles faster. (check-in: 3b7259eb user: drh tags: trunk)
18:51		Fix the OP_NullRow documentation so that it accurately describes what it actually does for a pseudo-cursor. (check-in: 4e269902 user: drh tags: trunk)
18:15		Dead branch: Superseded by [3b7259ebd5b9b1f7] (Closed-Leaf check-in: 09a47f32 user: drh tags: simplify-cursor-state)
16:21		Do not do a deferred seek on a cursor that is marked nullRow. (check-in: 1c026bcb user: drh tags: simplify-cursor-state)
15:44		This branch proposes to consolidate various state fields of VdbeCursor (specifically, nullRow, deferredMoveto, and cacheStatus) into a single eCurState field. This first check-in adds the new eCurState field while retaining and continuing to use the legacy state fields. (check-in: 7953716c user: drh tags: simplify-cursor-state)
13:29		Improved comment on the codeDeferredSeek() routine. No code changes. (check-in: 54f49f65 user: drh tags: trunk)
11:30		Fix unimportant typos in comment text. (check-in: 39346013 user: drh tags: trunk)
01:23		Invoking SQLITE_TESTCTRL_INTERNAL_FUNCTIONS causes the flags field of the PRAGMA function_list to show all bits, including internal-use-only bits, rather than just the bits that are part of the API. (check-in: ad1be348 user: drh tags: trunk)
01:10		Remove unused P4 types on the Opcode object. Saves a few bytes of code space and simplifies the code. (check-in: aca53843 user: drh tags: trunk)
00:09		Merge shell-tweaks enhancements (with 3.38) (check-in: 4c7d94d3 user: larrybr tags: cli_extension)
2022-02-24
14:44		Change the OP_Next and OP_Prev opcodes so that they invoke sqlite3BtreeNext() and sqlite3BtreePrevious() directly rather than through a function pointer, for improved performance and a decrease in code size. (check-in: 9d13cbbe user: drh tags: trunk)
11:09		Spell fix, no code change (check-in: f2597fae user: larrybr tags: trunk)
04:29		Regularize CLI .mode processing (check-in: 6d055724 user: larrybr tags: cli_extension)
01:41		Fix an assert() so that it is still valid following OOM with the latest enhancements. (check-in: ecf832f7 user: drh tags: trunk)
01:08		Update the version number of version 3.39.0 for the next development cycle. (check-in: 9542e9be user: drh tags: trunk)
2022-02-23
22:56		Add a new subclass for MemPage.xCellSize specifically for the case of a leaf page in a B+Tree, that is optimized for that cases. This gains a half million cycles or more at the cost of less than 200 bytes of code space. (check-in: 7ad82922 user: drh tags: trunk)
18:23		Optimize calls to get2byte() in btree.c for almost a one-million cycle performance gain and a few bytes less code. (check-in: 41061f29 user: drh tags: trunk)
17:16		Defer the check for error check Pgno zero until after the page fetch misses, to gain a few CPU cycles and a small size reduction. (check-in: ece326db user: drh tags: trunk)
17:00		Store the page number for the PENDING_BYTE page in the Pager object, rather than computing the page number every time it is needed, because it turns out that number is needed quite frequently. This saves a few hundred thousand CPU cycles and a few bytes of code space. (check-in: 5aa9c3eb user: drh tags: trunk)
10:10		Sync with 3.38 (check-in: b9b27d74 user: larrybr tags: cli_extension)
2022-02-22
22:28		Sync w/3.38, add .parameter ls to CLI (check-in: 8c9a5fb2 user: larrybr tags: shell-tweaks)
20:38		Don't reload the schema on PRAGMA database_list. (check-in: 630fe446 user: drh tags: reuse-schema)
20:29		For the "PRAGMA database_list" statement, do not check to see if the schema is up-to-date and do not try to reload the schema. (check-in: 710de6a2 user: drh tags: trunk)
20:04		Merge version 3.38.0 into the reuse-schema branch. (check-in: 8fe85dcd user: drh tags: reuse-schema)
19:56		Merge version 3.38.0 into the begin-concurrent-pnu-wal2 branch. (check-in: 8387e4f3 user: drh tags: begin-concurrent-pnu-wal2)
19:46		Merge version 3.38.0 into the wal2 branch. (check-in: de24c8ee user: drh tags: wal2)
19:37		Merge version 3.38.0 into the begin-concurrent-report branch. (check-in: 0bbf7be2 user: drh tags: begin-concurrent-report)
19:30		Merge version 3.38.0 into the begin-concurrent branch. (check-in: c5998c43 user: drh tags: begin-concurrent)
18:58		Version 3.38.0 (check-in: 40fa792d user: drh tags: trunk, release, major-release, version-3.38.0)
15:47		Fix an undersized memory allocation in the test harness for RTREE. This error was in test logic only, not in the SQLite library itself. forum post 35470a0a72a005e1 (check-in: 7e3c9594 user: drh tags: trunk)
2022-02-21
16:49		Merge the latest trunk changes into the reuse-schema branch. (check-in: b3c26f4a user: drh tags: reuse-schema)
14:30		Fix compiler warnings for older compilers (ex: gcc 4.0.1 powerpc-apple-darwin). (check-in: 5c188243 user: drh tags: trunk)
13:44		Remove stray tab characters from auxiliary source code files. (check-in: e25e3358 user: drh tags: trunk)
13:02		Add SQLITE_OMIT_JSON to the compile-time option test sequence. (check-in: f36325a6 user: drh tags: trunk)
00:23		Do not allow error messages from sqlite3NestedParse() to leak up into the main parse. (check-in: 9c4e21ab user: drh tags: trunk)
2022-02-19
21:25		Improve .backup and .save help text (check-in: 741651fd user: larrybr tags: trunk)
15:57		Add a NEVER() to a branch that is unreachable for STAT4. (check-in: e4e97505 user: drh tags: trunk)
2022-02-17
17:24		Enhance the documentation on sqlite3_stmt_readonly() to explain that EXPLAIN and EXPLAIN QUERY PLAN do not affect the return value. Add test cases to verify this. Add new test cases and requirements marks for complete requirements test coverage on this interface. (check-in: a6fbb7ba user: drh tags: trunk)
14:33		Remove references to the now-defunct SQLITE_ENABLE_JSON1 compile-time option. (check-in: db950192 user: drh tags: trunk)
14:29		Fix a testing error on Windows that was recently added to shell5.test. (check-in: 6cace543 user: drh tags: trunk)
2022-02-16
15:11		Make the sqlite3_error_offset() interface accessible from TCL using the new "erroroffset" method on the sqlite3 object. (check-in: 3454a122 user: drh tags: trunk)
2022-02-15
20:56		Merge the latest trunk enhancements into the reuse-schema branch. (check-in: b9ba43fc user: drh tags: reuse-schema)
20:47		Merge the latest trunk enhancements into the begin-concurrent-pnu-wal2 branch. (check-in: 1336d2f2 user: drh tags: begin-concurrent-pnu-wal2)
20:37		Merge recent trunk enhancements into the wal2 branch. (check-in: 7dba8188 user: drh tags: wal2)
20:24		Merge recent trunk enhancements into the begin-concurrent-report branch. (check-in: 213df7a0 user: drh tags: begin-concurrent-report)
20:18		Merge the latest trunk changes into the begin-concurrent branch. (check-in: 94838f16 user: drh tags: begin-concurrent)
17:04		Sync with trunk (check-in: 2b4a295c user: larrybr tags: shell-tweaks)
13:23		Improved rendering of floating point numbers without a fractional part in ".dump" output from the CLI. Forum post 550d877659f37cb2. (check-in: 9edaeed5 user: drh tags: trunk)
11:46		New assert() statements to help prove correctness of memjournal.c. (check-in: d74ec88c user: drh tags: trunk)
2022-02-14
21:11		Generalize the in-memory journal so that it is able to accept writes that begin at any offset less than or equal to the current file size. (check-in: c039d547 user: drh tags: trunk)
18:55		CLI .import can auto-rename non-unique column names when it creates a new table (check-in: 4b5d07ea user: larrybr tags: trunk)
18:18		Minor correction to the early corruption detection added by [a6fda39e81d0da98\|check-in a6fda39e81d0da98] so that it works even if the page being cleared in page 1 of the database. (check-in: a5ec1690 user: drh tags: trunk)
13:53		Fix a bad assert() (it needs an "\|\|CORRUPT_DB" term) in b-tree, discovered by dbsqlfuzz. (check-in: f5f263cc user: drh tags: trunk)
01:12		CLI's .import column rename made more minimal, and reports renames. (Leaf check-in: c626cff7 user: larrybr tags: auto-column)
2022-02-13
22:18		Sync w/trunk, fix zAutoColumns placement blunder, all to pass all TCL tests (check-in: 67dc59f4 user: larrybr tags: auto-column)
2022-02-12
18:56		Do not run merge1.test with SQLITE_OMIT_VIRTUALTABLE builds. (check-in: bf8dbfd4 user: dan tags: trunk)
16:02		Fix a possible user-after-free in ALTER TABLE found by asan. (check-in: 9252619d user: dan tags: trunk)
13:45		Update fuzz.test to account for a change in error message made in the core. (check-in: c57601b5 user: dan tags: trunk)
13:37		Avoid dropping SQLITE_TOOBIG errors in the quote() function. (check-in: 115c3051 user: dan tags: trunk)
13:12		For .import auto-column, aid build-time override of rename decoration. (check-in: 433e5ead user: larrybr tags: auto-column)
10:48		Fix auto-column bug noted by post https://sqlite.org/forum/forumpost/d102c15d63 (check-in: 689137e1 user: larrybr tags: auto-column)
02:15		Sync w/trunk, allow build-time override of auto-column decorating character (check-in: caaef4c5 user: larrybr tags: auto-column)
2022-02-11
21:20		Fix a test in without_rowid1.test so that it is disabled without ALTER TABLE support, as it uses ALTER TABLE. (check-in: ca22a64e user: drh tags: trunk)
19:41		Update some OOM tests of the ALTER TABLE command to account for an error message which may be returned if opening the temp db fails. (check-in: 3409fd41 user: dan tags: trunk)
17:47		Load recent dbsqlfuzz finds into test/fuzzdata8.db. (check-in: b275ad25 user: drh tags: trunk)
17:47		Reference the wayback machine for the dead hyperlink to the MS support page in the comments about why the extra typedef for va_arg(). No code changes. (check-in: ab1a9b5b user: drh tags: trunk)
17:33		Fix an assert() in the pager by adding "\|\| CORRUPT_DB", in as much as the assert() is not necessarily true if the database size in the header is wrong. dbsqlfuzz f2f996065b90988aa9b0ae425b66dbb296546a08. (check-in: a51402e8 user: drh tags: trunk)
16:10		Fix a problem in [c006515ae6faff65] causing an assert() to fail with some build configurations. (check-in: d7ff262d user: dan tags: trunk)
14:08		Use the enhanced SQLITE_TESTCTRL_LOCALTIME_FAULT (2) capability to do better testing of the 'localtime' and 'utc' modifiers to date/time functions. (check-in: f3807194 user: drh tags: trunk)
13:40		Upon .import column renaming, issue message saying so. Test this. (check-in: 8b6ca930 user: larrybr tags: auto-column)
12:06		Fix the bind2.test test script so that it works even if SQLITE_ENABLE_PREUPDATE_HOOK is not defined. Fix for test-case breakage from check-in [c006515ae6faff65]. (check-in: 937d3a45 user: drh tags: trunk)
11:37		Work around the MSVC bug that prevents the use of function pointer types in the second argument of va_arg() by adding a typedef. (check-in: eae3ab0a user: drh tags: trunk)
01:21		CLI auto-column rename revamped after forum discussion. (check-in: 2da1f8e4 user: larrybr tags: auto-column)
2022-02-10
23:12		Fix SQLITE_TESTCTRL_LOCALTIME_FAULT so that it works even if mutexes are enabled. (check-in: 64537a06 user: drh tags: trunk)
21:26		Enhance SQLITE_TESTCTRL_LOCALTIME_FAULT so that is able to install an alternative localtime() interface so that the localtime logic an be better tested. (check-in: 6e25cb08 user: drh tags: trunk)
15:40		Performance improve to the 'localtime' and 'utc' modifiers for date/time functions. (check-in: 85cb6014 user: drh tags: trunk)
12:57		Faster implementation of the date(), time(), and datetime() functions. (check-in: fa1b393b user: drh tags: trunk)
12:31		Fix the test harness so that it builds without SQLITE_ENABLE_PREUPDATE_HOOK. Has been broken since [c006515ae6faff65]. (check-in: 4565f711 user: drh tags: trunk)
03:21		A CLI feature. auto .import (new table) columns. WIP (check-in: 7e3be36d user: larrybr tags: auto-column)
02:09		Create new branch named "auto-column" (check-in: 066febe8 user: larrybr tags: auto-column)
01:01		Fix a typo in documentation. No code changes. (check-in: e97c6ad4 user: drh tags: trunk)
2022-02-09
18:47		When process first moves a database into WAL mode and then tries to run sqlite3_wal_checkpoint() without first performing a transaction, first try to run a synthesized transaction to get the Pager caught up before attemptingn the checkpoint. forum post fd0f19d229156939. (check-in: eee6de19 user: drh tags: trunk)
18:42		Fix a problem with using sqlite3_bind_value() with sqlite3_value objects obtained from sqlite3_preupdate_new() when an integer value is written to a column with real affinity. (check-in: c006515a user: dan tags: trunk)
16:18		Prototype implementation of IF EXISTS and IF NOT EXISTS clauses on the various forms of ALTER TALE. (Leaf check-in: 460abf93 user: drh tags: alter-table-if-exists)
2022-02-08
15:14		Writes to the subjournal should be all-or-nothing. Fix for dbsqlfuzz fe3c397fb90029313446c4e0f4a6cd0c81dd9621. (check-in: 22cc55e8 user: drh tags: trunk)
13:41		Provide sqlite3_error_offset() data for some new errors. (check-in: 1269206d user: drh tags: trunk)
12:24		comment-only change to sqlite3.h (check-in: f815cf4a user: larrybr tags: trunk)
12:13		Do not show the error code number of CLI error messages unless the error is something other than 1 (SQLITE_ERROR). (check-in: b4716018 user: drh tags: trunk)
11:52		Improved error message formatting in the shell. Distinguish between "Parse errors" and "Runtime errors". (check-in: ae3e322a user: drh tags: trunk)
2022-02-07
18:52		Disable the sqlite3_error_offset() when the error occurs in a trigger or view or some other bit of text that is not part of the original statement. (check-in: 0e909e34 user: drh tags: trunk)
01:09		When create table/view fails due to name taken, say which took it. (check-in: 9a206e37 user: larrybr tags: trunk)
2022-02-06
23:54		Fix unreachable branches in the sqlite3_error_offset() logic. (check-in: 031381ae user: drh tags: trunk)
22:13		The sqlite3_vtab_in() interface should return false for a vector IN constraint. (check-in: 245d0241 user: drh tags: trunk)
21:13		With the new ALTER TABLE under PRAGMA writable_schema=ON processing, do not ignore non-parser errors such as OOMs. (check-in: 36653cce user: drh tags: trunk)
14:30		CLI extended parsing, new .parameter subcommands, and .x features fairly well tested (check-in: 9c664984 user: larrybr tags: shell-tweaks)
11:51		Faster computation of Expr.nHeight. (check-in: a7a5af32 user: drh tags: trunk)
11:26		Record the error offset on INTEGER tokens. (check-in: 38e057a5 user: drh tags: trunk)
00:30		Further improvements to localization of errors in input SQL. (check-in: fa346760 user: drh tags: trunk)
00:07		Sync with trunk. More shell9.test tests to come. (check-in: 2e72dc46 user: larrybr tags: shell-tweaks)
2022-02-05
23:45		CLI cleanup, mode push/pop, parameter list beautification (check-in: 53d4582a user: larrybr tags: shell-tweaks)
23:11		Enhance sqlite3_error_offset() to report the position of unresolved identifiers. (check-in: 5b8d2577 user: drh tags: trunk)
21:49		Record the position of many identifiers in the parse using the new Expr.w.iOfst field. This is done with the idea of providing offset results for sqlite3_error_offset() for a more kinds of errors, though that part is not yet implemented. (check-in: 32a3a53b user: drh tags: trunk)
15:26		Fix CLI Windows build, refine its help, re-org ShellState (check-in: 991a06a4 user: larrybr tags: shell-tweaks)
13:27		Update stale evidence marks on sqlite3_vtab_rhs_value() test cases. (check-in: 46744b83 user: drh tags: trunk)
12:39		When PRAGMA writable_schema=ON, allow ALTER TABLE to proceed even if there are entries in the sqlite_schema table that do not parse. (check-in: fc4c82e5 user: drh tags: trunk)
12:05		Fix a NULL pointer dereference that can occur after OOM. Problem introduced by check-in [197cbabf1767d060]. (Closed-Leaf check-in: d4e6b9f0 user: drh tags: relaxed-alter-table)
11:13		Fix documentation typo. (check-in: 1a7d8bb5 user: drh tags: trunk)
01:01		Typo fixes in documentation. (check-in: 1ec747d1 user: drh tags: trunk)
2022-02-04
21:49		CLI .param save/load done; many other small refinements (check-in: 6d415ac2 user: larrybr tags: shell-tweaks)
20:16		Test case for permissive ALTER TABLE RENAME when writable_schema=ON. (check-in: 7ee44f66 user: drh tags: relaxed-alter-table)
20:07		One more case of disabling errors for ALTER TABLE RENAME when writable_schema=ON. (check-in: c52d0dd8 user: drh tags: relaxed-alter-table)
19:13		Add a compile-time option to include vt02.c in fuzzcheck. (check-in: c404c8c7 user: drh tags: trunk)
18:12		Merge trunk enhancements into the reuse-schema branch. (check-in: 5744e102 user: drh tags: reuse-schema)
18:02		Merge recent trunk changes into the begin-concurrent-pnu-wal2 branch. (check-in: cb045aba user: drh tags: begin-concurrent-pnu-wal2)
17:52		Merge trunk enhancements into the wal2 branch. (check-in: d2de02f3 user: drh tags: wal2)
17:51		Merge all recent trunk enhancements into the begin-concurrent-report branch. (check-in: 1c88bcff user: drh tags: begin-concurrent-report)
17:40		Merge trunk enhancements into the begin-concurrent branch. (check-in: 85054a86 user: drh tags: begin-concurrent)
16:43		Allow ALTER TABLE RENAME COLUMN to proceed even if there are errors in the schema, as long as PRAGMA writable_schema=ON is active. (check-in: 197cbabf user: drh tags: relaxed-alter-table)
13:15		Fix various harmless compiler warnings. (check-in: 70049342 user: drh tags: trunk)
13:05		For the MULTI-INDEX-OR optimization, when pushing down WHERE clause terms from the main query into the various OR-term subqueries, do not push down slices of a vector comparison, since the right-hand operand of the comparison might have only been initialized in a different OR branch that was not taken. dbsqlfuzz 80a9fade844b4fb43564efc972bcb2c68270f5d1. (check-in: 9f67ad00 user: drh tags: trunk)
09:39		Fix .param edit unable to edit script vars (bad assert) (check-in: 62d212d0 user: larrybr tags: shell-tweaks)
2022-02-03
21:07		Sync to trunk. Shell tests pass. (check-in: 79275b81 user: larrybr tags: shell-tweaks)
20:57		Scripting and .parameter enhancements most in; all in working (check-in: a1581118 user: larrybr tags: shell-tweaks)
18:14		Minor typo fix in comment. No code changes. (check-in: f9b76304 user: drh tags: trunk)
14:37		Do not allow the vdbe-compress.tcl script to generate structures named "do" or "if". (check-in: e35ab16d user: drh tags: trunk)
14:19		Prohibit schema changes within xBestIndex callbacks. (check-in: bb0f056b user: drh tags: trunk)
2022-02-02
21:06		Improvement to the sqlite3_vtab_in_first() documentation. (check-in: 403e7ac9 user: drh tags: trunk)
19:51		Add the sqlite3_vtab_in() interface that allows virtual tables to process IN constraints all at once, rather than one value at a time. (check-in: 52559af0 user: drh tags: trunk)
19:30		Additional test cases. (Closed-Leaf check-in: 733d81c3 user: drh tags: batch-in-operator)
19:15		Test cases for sqlite3_vtab_in() and sqlite3_vtab_distinct(). (check-in: 21afb81d user: drh tags: batch-in-operator)
18:47		Improved documentation for sqlite3_vtab_in(). No code changes. (check-in: c99df4ab user: drh tags: batch-in-operator)
16:24		Relax the restriction that the RHS of the IN operator must be a list in order for sqlite3_vtab_in() to work. Change an unreachable branch into an assert(). (check-in: 3bf21534 user: drh tags: batch-in-operator)
15:10		Be sure that sqlite3_vtab_in_first() and _next() set the correct encoding. (check-in: 04edf36e user: drh tags: batch-in-operator)
14:36		Refactor sqlite3_vtab_in() to make use of the existing sqlite3_value_pointer() mechanism for passing the list of IN operator RHS values into xFilter, for improved memory safety. (check-in: 8965929b user: drh tags: batch-in-operator)
11:37		Fix a harmless code indentation issue. (check-in: 41d8d26e user: drh tags: trunk)
2022-02-01
21:59		Tweaks to the sqlite3_vtab_in() interface. (check-in: 75040183 user: drh tags: batch-in-operator)
16:30		Index in 2nd argument to sqlite3_vtab_in() should be on the aConstraint[] array, not the internal array of all constraints. (check-in: 5acf90a9 user: drh tags: batch-in-operator)
15:08		Take CLI's wordwrap from trunk (check-in: 768c70a9 user: larrybr tags: shell-tweaks)
14:58		Add new interfaces to enable virtual table to process IN operator constraints all at once, rather than one element at a time. (check-in: eb84b80e user: drh tags: batch-in-operator)
13:17		CLI: Take extra care to not split a multi-byte unicode character when doing wordwrap. (check-in: 00b1b702 user: drh tags: trunk)
12:28		CLI: Add the --ww option as an alias for --wordwrap. Improve the wordwrap algorithm so that it breaks at punctuation if it cannot find space. Always wordwrap with --ww even if there is a .width setting for the column. (check-in: 1b528e31 user: drh tags: trunk)
02:50		Add "--wordwrap on/off" option for CLI columnar modes, qwbox shortcut (check-in: 10dbc278 user: larrybr tags: trunk)
00:00		CLI: In ".mode column" output, if any row contains a newline or wraps, then put a single blank line in between each pair of rows to provide additional visual separately. (check-in: fd42f4c3 user: drh tags: trunk)
2022-01-31
22:14		CLI: for columnar output modes, make sure the header is not too big. Also, improve the help text. (check-in: 070fae3a user: drh tags: trunk)
20:39		CLI: Fix a problem with tabs in the new qbox mode. (check-in: ca96ab3e user: drh tags: trunk)
19:52		Sync to trunk (check-in: f51a17b6 user: larrybr tags: shell-tweaks)
19:23		Cleanup dot-command handling, make multi-line work, honor exit requests from more contexts (check-in: 5cf66e89 user: larrybr tags: shell-tweaks)
16:29		Fix harmless compiler warnings in MSVC. (check-in: 3ec6141c user: drh tags: trunk)
15:59		Do not attempt to limit the number of columns used in a table to a prefix if the table will be used to construct an automatic index or bloom filter. dbsqlfuzz 787d9bd73164c6f0c85469e2e48b2aff19af6938. (check-in: f8766231 user: drh tags: trunk)
14:14		CLI: Enhancements to columnar output modes. (See [forum/forumpost/5b53cd851f66441f9\|forum post 5b53cd851] for discussion.) New output mode "qbox". New output options "--quote" and "--wrap N". (check-in: 539cef52 user: drh tags: trunk)
12:29		Fix an obscure problem in sqlite3_backup_init() caused by [6a45d8fe8bfbc11a\|check-in 6a45d8fe8bfbc11a]. See forum post 8b39fbf3e7 for the original bug report. (check-in: 639fc763 user: drh tags: trunk)
10:55		CLI: Fix the new ".mode box" output so that it works with unicode characters. (check-in: 454af487 user: drh tags: trunk)
2022-01-30
21:09		CLI: For columnar modes ("box", "column", "table", "markdown") the ".width" is now both the minimum and maximum width of the column. Text that spans multiple lines or that contains tabs is properly formatted. If any part of the output contains multi-line text, then extra separators are provided between each row. (check-in: c10ed4a7 user: drh tags: trunk)
11:44		Always enable all JSON tests, now that JSON is included by default. (check-in: 8c9f3501 user: drh tags: trunk)
11:42		Remove a faulty NEVER(). Fix for dbsqlfuzz 4678cf825d27f87c9b8343720121e12cf944b71a (check-in: d4e40245 user: drh tags: trunk)
01:35		Sync with trunk (check-in: 59693d3e user: larrybr tags: shell-tweaks)
01:21		Enhance shell parser for multi-line dot-commands (check-in: 5ed528e2 user: larrybr tags: shell-tweaks)
2022-01-29
21:41		Documentation enhancements. No code changes. (check-in: 312642d9 user: drh tags: trunk)
2022-01-28
23:44		Add the SQLITE_INDEX_CONSTRAINT_LIMIT and SQLITE_INDEX_CONSTRAINT_OFFSET constraints to the sqlite3_index_info for the xBestIndex method of virtual tables. (check-in: 1e227ad9 user: drh tags: trunk)
23:19		Add a NEVER() on an unreachable branch. (Closed-Leaf check-in: 38892625 user: drh tags: vtab-limit-offset)
21:39		When nesting Parse objects, make sure the new one has nErr set if there has been an OOM error. (check-in: ae088cbc user: drh tags: trunk)
19:53		Include hidden columns of table valued functions that are constrained by the function arguments in the colUsed bitmask. (check-in: 8f8cab0d user: drh tags: vtab-limit-offset)
18:43		Remove a NEVER() that has become reachable now that we have the sqlite3_vtab_rhs_value() interface. (check-in: c4c30df7 user: drh tags: vtab-limit-offset)
13:18		Enable SQLITE_INDEX_CONSTRAINT_LIMIT/OFFSET even if there are vector comparison operators in the WHERE clause. Also: Do not enable sqlite3_vtab_rhs_value() for LIMIT/OFFSET if the value is negative, as this violates an invariant on Expr.u.iValue. (check-in: 140480b3 user: drh tags: vtab-limit-offset)
2022-01-27
21:18		Query planner always honors the aConstraintUsage[].omit flag for the SQLITE_INDEX_CONSTRAINT_OFFSET constraint. (check-in: 38c5151e user: drh tags: vtab-limit-offset)
18:45		Make LIMIT and OFFSET values available to sqlite3_vtab_rhs_value(). (check-in: b2d37c08 user: drh tags: vtab-limit-offset)
16:14		Give the virtual table xBestIndex method access to (some) OFFSET and LIMIT clauses. (check-in: 74fa5757 user: drh tags: vtab-limit-offset)
13:52		Enforce the restriction that 'unixepoch' only works as the first modifier after the time-value. This has been documented since 2004, but has never actually been enforced before. Also add new test cases for date/time functions with evidence marks. (check-in: 64fa9e8c user: drh tags: trunk)
2022-01-25
16:28		Merge the latest trunk enhancements into the reuse-schema branch. (check-in: 6e4154d4 user: drh tags: reuse-schema)
16:05		Merge the latest trunk changes into begin-concurrent-pnu-wal2 (check-in: 3d949775 user: drh tags: begin-concurrent-pnu-wal2)
15:57		Merge the latest trunk changes into the wal2 branch. (check-in: 84f737ab user: drh tags: wal2)
15:48		Merge the latest trunk enhancements into the begin-concurrent-report branch. (check-in: 42e6d842 user: drh tags: begin-concurrent-report)
15:20		Merge the latest trunk enhancements into the begin-concurrent branch. (check-in: dae81f45 user: drh tags: begin-concurrent)
00:03		Minor adjustment to error handling in sqlite3FinishCoding(). (check-in: a8db6941 user: drh tags: trunk)
2022-01-24
21:47		Remove an unnecessary assert() that is sometimes not true following an OOM. (check-in: e9361d72 user: drh tags: trunk)
20:20		New dbsqlfuzz cases added to test/fuzzdata8.db. (check-in: d1fbf633 user: drh tags: trunk)
20:16		One of the ALWAYS() macros in the previous check-in could sometimes be false, following an OOM. Remove it. Problem found by dbsqlfuzz. (check-in: 11df9187 user: drh tags: trunk)
19:38		Add ALWAYS() macros. Change some existing ALWAYS() into assert(). Other code simplifications. (check-in: 4aa27b4f user: drh tags: trunk)
16:47		Remove many redundant checks for sqlite3.mallocFailed now that any OOM should cause Parse.nErr to be non-zero. (check-in: 1f7fa461 user: drh tags: trunk)
15:34		Make it so that any Parse object is always linked into the database conenction while it is active. Hence, an OOM will cause Parse.nErr to be set. (check-in: 6a45d8fe user: drh tags: trunk)
14:01		Fix testcase for CLI .read recursion. (check-in: 53d44044 user: larrybr tags: trunk)
12:48		Make sure the sqlite3OomFault() routine sets an error in the Parse object if there is a Parse object active and linked to the database connection. (check-in: ad7aace7 user: drh tags: trunk)
11:25		Ensure that any error encountered while coding a trigger program is transfered to the main Parse structure before it is used with any other routine that might set the error code. (check-in: 42936565 user: dan tags: trunk)
07:11		Take CLI input redirect recursion limit from trunk (check-in: 5e702044 user: larrybr tags: shell-tweaks)
06:36		Limit CLI input redirect nesting (check-in: 7a073931 user: larrybr tags: trunk)
04:21		Add CLI .x command, make string redirection work (check-in: 2f2f1aae user: larrybr tags: shell-tweaks)
00:22		CLI prepared for reading string input (check-in: 073ded4d user: larrybr tags: shell-tweaks)
2022-01-23
20:54		Factor out DB protection lift and restore in CLI (check-in: 4462ed89 user: larrybr tags: shell-tweaks)
04:19		Shell refinements, seeargs, booleans, undocumented commands (check-in: 8735caf1 user: larrybr tags: shell-tweaks)
02:53		Create new branch named "shell-tweaks" (check-in: 3f13df29 user: larrybr tags: shell-tweaks)
2022-01-22
22:28		Add support for the sqlite3_vtab_distinct() interface. Virtual table implementations can use this API to determine more detail about the ordering requirements needed by the query plan and perhaps reduce the amount of work required to compute a correct answer. This is an optimization opportunity for the virtual table implementation. The correct answer should still be obtained (though perhaps more slowly) even if sqlite3_vtab_distinct() is ignored. (check-in: e4caf1e3 user: drh tags: trunk)
20:45		Bring sqlite3_vtab_distinct() up to spec so that it works as described in the documentation. (Closed-Leaf check-in: 4289edf3 user: drh tags: sqlite3_vtab_distinct)
19:19		Iimproved documentation for sqlite3_vtab_distinct(). No changes to code. (check-in: 7af03f02 user: drh tags: sqlite3_vtab_distinct)
02:52		Omit the WhereLoopBuilder.pOrderBy field, which is no longer needed. (check-in: a13afc90 user: drh tags: sqlite3_vtab_distinct)
00:18		An initial attempt to implement sqlite3_vtab_distinct(). (check-in: d571262d user: drh tags: sqlite3_vtab_distinct)
2022-01-21
19:26		Update evidence marks for the latest changes to the documentation. (check-in: 19247e91 user: drh tags: trunk)
18:57		Fix some of the new date/time function features to comply with the spec. Update requirement marks. (check-in: 2f5dc7a9 user: drh tags: trunk)
16:41		When computing a vector to be used as a key for an index lookup, do not check for NULL values and abort until after all key values have been computed, in case one of the later key values involves some initialization that is needed by a LEFT JOIN. Fix for the problem identified by Forum post ab95010d410a0a55. (check-in: 4db5217a user: drh tags: trunk)
01:00		Add the sqlite3_vtab_rhs_value() interface, allowing the xBestIndex method of a virtual table to access known values on the right-hand side of constraint expressions. (check-in: e19a0b13 user: drh tags: trunk)
00:38		Add requirements marks and tuning. (Closed-Leaf check-in: ac951490 user: drh tags: sqlite3_vtab_rhs_value)
2022-01-20
19:00		Test cases for sqlite3_vtab_rhs_value() based on the qpvtab extension. (check-in: 577d3d66 user: drh tags: sqlite3_vtab_rhs_value)
18:27		Enhancements to the qpvtab virtual table to make it more useful for testing and verification of virtual table interfaces. (check-in: 850efc4c user: drh tags: sqlite3_vtab_rhs_value)
17:10		Initial implementation of the sqlite3_vtab_rhs_value() interface and the qpvtab extension used for testing the virtual table interface. (check-in: 0873c76b user: drh tags: sqlite3_vtab_rhs_value)
14:40		A better and more robust fix for the problem of reading a read-only WAL mode database with existing -wal and -shm files, replacing [f426874e005e3c23]. (check-in: 71bfd0b5 user: drh tags: trunk)
12:58		Fix harmless scan-build warnings. (check-in: ab160e8b user: drh tags: trunk)
05:20		A WIP checkin, progress toward what .help promises (Closed-Leaf check-in: 4688e6df user: larrybr tags: script_command)
02:04		Fix the ability to read read-only WAL-mode database when -shm is present, ([00ec95fcd02bb415\|check-in 00ec95fcd02bb415]) so that it works for the case of 64K page size. (check-in: f426874e user: drh tags: trunk)
2022-01-19
21:11		Initial help changes for .script (and enhanced .parameter) (check-in: a94ab403 user: larrybr tags: script_command)
20:38		Mistaken branch creation. (Closed-Leaf check-in: 03548c25 user: larrybr tags: mistake)
18:31		Fix a test result for alterauth2.test due to the recent fix to authorizer calls for ALTER TABLE DROP COLUMN. (check-in: e799a35f user: drh tags: trunk)
2022-01-18
16:16		Fix ALTER TABLE DROP COLUMN so that it invokes the authorizer. Fix for forum post fd82b85947541dec. (check-in: aca6c61d user: drh tags: trunk)
2022-01-17
23:37		Allow an "IntReal" value to count as a REAL when checking types for insertion into a generated column on a STRICT table. Forum post fa012c77796d9399. (check-in: 1ec44d55 user: drh tags: trunk)
20:01		Merge the latest trunk changes into the reuse-schema branch. (check-in: 769ff857 user: drh tags: reuse-schema)
19:46		Merge the latest trunk enhancements into the begin-concurrent-pnu-wal2 branch. (check-in: 45fa7efe user: drh tags: begin-concurrent-pnu-wal2)
19:36		Merge the latest trunk enhancements into the wal2 branch. (check-in: 82f031b4 user: drh tags: wal2)
19:24		Bring the begin-concurrent-report branch up to date with all the latest trunk enhancements. (check-in: ef6fc895 user: drh tags: begin-concurrent-report)
19:17		Merge recent trunk enhancements into the begin-concurrent branch. (check-in: 02daae7a user: drh tags: begin-concurrent)
17:22		.ar fixed and constituent line numbers off (until they are right) (check-in: ec363f81 user: larrybr tags: cli_extension)
15:23		Fix incorrect testcase() and assert() macros in json.c. They were not causing problems. The assert() was simply unreachable. The testcase() added an unreachable condition. (check-in: 5623497a user: drh tags: trunk)
14:42		Never allow the b-tree layers view of the number of pages in the database file exceed the actual number of pages in the database file, even when PRAGMA writeable_schema=ON. This helps with earlier detection of corruption, and prevents excess memory usage and CPU cycles in some integrity_check ops. (check-in: 0407c879 user: drh tags: trunk)
03:53		Merge from trunk, w/adapations. (.ar still broken) (check-in: e09a6dd7 user: larrybr tags: cli_extension)
03:25		Bring .import --schema enhancement in. Refine mkshellc include logic. (check-in: e38f45cd user: larrybr tags: cli_extension)
2022-01-16
19:11		Fix test cases so that they all still work even with -DSQLITE_DQS=0. (check-in: 48837766 user: drh tags: trunk)
15:15		Fix ALTER TABLE so that it works even when compiled using -DSQLITE_DQS=0. Forum post 3c1a00b66fca81fe. (check-in: 092ad64f user: drh tags: trunk)
2022-01-14
23:28		Remove code from lemon.c that was made superfluous by [1b22b42e59793af1\|check-in 1b22b42e59793af1] in late 2017. (check-in: 6d2f95a4 user: drh tags: trunk)
21:34		Fix a NEVER() in the byte-code engine that can sometimes be true. Test case in TH3. (check-in: 7ac91b53 user: drh tags: trunk)
16:29		For .import schema, quote it as for other identifiers. (check-in: bff9153c user: larrybr tags: trunk)
2022-01-13
21:22		Add --schema S option to .import (check-in: 38d9dbca user: larrybr tags: trunk)
2022-01-12
20:31		When the result of a subquery is to be stored in a register and that subquery has an ORDER BY clause and an OFFSET, NULL out the destination register before starting the ORDER BY so that the register will be set correctly even if the OFFSET is larger than the number of output rows. Fix for the problem reported in forum post 0ec80f12d02acb3f. (check-in: 9282bcde user: drh tags: trunk)
01:42		Make tool/mctimec.tcl effect more regular and obvious (check-in: 02aaa10f user: larrybr tags: trunk)
00:52		Fix mkctimec.tcl with the updated compile-time options for JSON. (check-in: 8ded3f5b user: drh tags: trunk)
00:28		Fix harmless compiler warning seen with MSVC. (check-in: adebb9d7 user: mistachkin tags: trunk)
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)
2022-01-10
17:43		Fix typo in the json-enhancements.md document. (check-in: feba24ef user: drh tags: json-in-core)
15:43		Implement the new PG-compliant versions of the -> and ->> operators. (check-in: 39eff3b9 user: drh tags: json-in-core)
13:55		New proposal for -> and ->> operators. (check-in: 1108e12a user: drh tags: json-in-core)
2022-01-09
21:16		Update the json-enhancements.md document to match the version in the json-in-core branch, as outside readers have linked to this branch. (Leaf check-in: 2027b3be user: drh tags: json-enhancements)
20:51		Typo fix in doc/json-enhancements.md. (check-in: c3b01d49 user: drh tags: json-in-core)
20:42		Update the doc/json-enhancements.md document to better explain the features of this branch. (check-in: b8ac938f user: drh tags: json-in-core)
19:44		Do not enclude ENABLE_JSON1 in the compile-time options. (check-in: 8bf41bc5 user: drh tags: json-in-core)
19:36		Merge trunk enhancements into the json-in-core branch. (check-in: ea755771 user: drh tags: json-in-core)
16:54		Add a new built-in subtype() function. (check-in: a25f4ce2 user: drh tags: json-in-core)
2022-01-08
21:59		mkshellc.tcl to convert #include to INCLUDE for in-tree includees (check-in: b1f3b317 user: larrybr tags: cli_extension)
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)
15:37		Merge the JSON function enhancements from the json-enhancements branch into json-in-core. (check-in: e116501c user: drh tags: json-in-core)
15:05		Improved commenting of changes in the json1.c extension. (check-in: 4d81425e user: drh tags: json-enhancements)
2022-01-07
18:09		Notes on the JSON enhancement proposals. (check-in: 18160985 user: drh tags: json-enhancements)
17:26		Reverse the meaningn of -> and ->>. ->> raises an error on invalid JSON but -> does not. This allows ->> to behave the same as PG and MySQL. (check-in: 85f81705 user: drh tags: json-enhancements)
17:14		Change the -> operator to use json_extract(). The ->> operator continues to use json_nextract(). (check-in: b4c8a623 user: drh tags: json-enhancements)
17:08		New json_nextract() function that works like json_extract() except that it returns NULL instead of raising an error if the first argument is not well-formed JSON. Or if the first argument is not well-formed JSON and the second argument is '$', then return the first argument quoted. The "->" and "->>" operators are converted to use json_nextract(). (check-in: dc00f528 user: drh tags: json-enhancements)
16:03		Add the json_ntype() SQL function. Works like the 1-argument json_type() except that it returns NULL if the argument is not well-formed JSON, rather than raising an error. (check-in: ed9956f5 user: drh tags: json-enhancements)
15:47		Accept abbreviated JSON Paths on the right-hand side of the -> and ->> operators. (check-in: d1541090 user: drh tags: json-enhancements)
14:58		Add new binary operators "->" and "->>" to the parser that evaluate to 2-argument SQL functions by the same name. Add new "->" and "->>" functions to the JSON extension that are aliases for json_extract(). (check-in: c4e4e3a3 user: drh tags: json-enhancements)
2022-01-06
17:13		Add the '-guard:cf' compiler option for Windows 10, per forum post 8d3b4ad694. (check-in: 2d6a16ca user: mistachkin tags: trunk)
01:40		An attempt to integrate the JSON functions directly into the SQLite core, rather than holding them as an extension. (check-in: 583b47d8 user: drh tags: json-in-core)
2022-01-05
21:01		Remove two NEVER() macros that can sometimes be true if the database is corrupt. dbsqlfuzz 0414d2c18290fc80fd5fb540def7d3e46c1ae9c6. (check-in: b6a82f3c user: drh tags: trunk)
15:54		Fix an assert() failure that could follow an OOM when coding a RETURNING trigger. dbsqlfuzz case 5d3e2438f15dc32b473d9f29413157857efa1212. (check-in: 7ae596dd user: dan tags: trunk)
11:49		Improved handling of OOM errors in sqlite3ExpandReturning(). dbsqlfuzz 1040b720f0bbc3bdcfe7336acffbf71517e3ef82. (check-in: 33c6b8e9 user: drh tags: trunk)
2022-01-03
19:33		Test .mode quote blob output (check-in: ef4dcd10 user: larrybr tags: trunk)
01:43		Small performance and size optimization to allocateCursor(). (check-in: 23f04266 user: drh tags: trunk)
2022-01-02
21:53		Remove unnecessary assignment operations in the btree search algorithm, for a small size reduction and performance increase. (check-in: 01bd266e user: drh tags: trunk)
20:54		In the CLI, fix ".mode quote" output for UTF16 BLOBs. Forum post b4bfe62fe6. (check-in: 728e9dcc user: drh tags: trunk)
19:32		Do not open a rollback journal file when the journal_mode is OFF, even if such a file exists on disk. See [forum/forumpost/ec2a102440\|forum post ec2a102440] for a description. I so far have been unable to find any harm to come of the problem, other than the assertion fault when in DEBUG mode. (check-in: fdf9ed66 user: drh tags: trunk)
19:10		Improve formatting of an assert(). No functional changes. (check-in: 4bb78ce8 user: drh tags: trunk)
16:48		Performance optimization in btreeParseCellPtr() by unrolling the loop that decodes the rowid. (check-in: fef72368 user: drh tags: trunk)
14:55		Small performance optimization and size reduction in sqlite3BtreeDelete(). (check-in: da0af4dd user: drh tags: trunk)
12:01		Clear the cache of triggers used to implement CASCADE foreign key constraints whenever the schema changes. Fix for the problem identified by forum post 2831335356. (check-in: 5232c977 user: drh tags: trunk)
11:25		Earlier detection of corruption in sqlite3BtreeDelete(). Fix for the assertion fault reported by forum post 9d78389221. (check-in: 13e9ff9e user: drh tags: trunk)
00:16		Bring in trunk shell mods. (check-in: f628c3af user: larrybr tags: cli_extension)
2022-01-01
22:55		Do not raise an SQLITE_SCHEMA error if in sqlite3Init(). Fix for PoC #2 in forum post d7338bf4901f1151. See TH3 for test cases. (check-in: e199a851 user: drh tags: trunk)
20:02		Fix an assert() in pager.c to avoid the possibility of side-effects. (check-in: 1d1fe03c user: dan tags: trunk)
19:55		Attempt to fix a harmless compiler warning in FTS5. (check-in: 8e619c21 user: drh tags: trunk)
19:29		Fix an obscure problem with releasing savepoints stored in an in-memory journal that could cause subsequent savepoint rollback to fail. Problem reported by forum post d7338bf4901f1151, PoC #3. The problem appears to have been introduced at [23ca23894af352ea]. (check-in: 73c2b502 user: dan tags: trunk)
17:21		Remove an obsolete assert() statement that no longer does anything useful and which is not always true. Fix for PoC #1 of forum post d7338bf4901f1151. (check-in: c76a4c0b user: drh tags: trunk)
12:26		Fix a faulty assert() statement - adding a CORRUPT_DB term - based on a test case derived from [562805cf488a455c]. Also add a test case to that prior issue. (check-in: 0dd6b5fc user: drh tags: trunk)
2021-12-31
22:53		Mark the REGEXP operator in the built-in extension as deterministic. (check-in: e654b57a user: drh tags: trunk)