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100 descendants of [4440e420]

2017-06-27
16:39
Fix a virtual table problem that can occur when the vtab is on the RHS of a LEFT JOIN and there is a MATCH constraint in the ON clause, or when the vtab is in a sub-query that is the RHS of a LEFT JOIN and there is a MATCH constraint in the WHERE clause of the sub-query. check-in: 87b38166 user: dan tags: trunk
06:28
Minor corrections to the previous check-in. check-in: e1cf8a78 user: mistachkin tags: lsm-vtab
05:59
Work in progress porting lsm1 to Win32. check-in: 2017636e user: mistachkin tags: lsm-vtab
2017-06-26
21:08
Add the -withoutnulls option to the "db eval" method in the TCL interface. check-in: 18f0616e user: drh tags: trunk
18:42
The ".import" command of the shell, and the csv virtual table extension both ignore a single UTF-8 BOM at the beginning of their input. check-in: 7c15d762 user: drh tags: trunk
16:13
Add the "-unsetnull 1" option to the "sqlite3" command in the TCL interface. Closed-Leaf check-in: cbe441b2 user: drh tags: unsetnull-option
14:46
Make sure sqlite3VdbeSetVarmask() is never invoked when QPSG is enabled. Closed-Leaf check-in: ebcfa73e user: drh tags: enable-QPSG
13:57
Add the SQLITE_DBCONFIG_ENABLE_QPSG option to activate the query planner stability guarantee. This involves refactoring the sqlite3.flags bitvector to carve out a free bit to use. check-in: 7076e828 user: drh tags: enable-QPSG
11:46
Remove an invalid assert() from lsm test code. check-in: ca8a7e99 user: dan tags: lsm-vtab
08:24
Fix another problem with multi-threaded mode in the LSM test code. check-in: 461ced77 user: dan tags: lsm-vtab
07:31
Update a test case to reflect the fact that the lsm blocksize is configured in KiB. And defaults to 1024, not 2048. check-in: d7015475 user: dan tags: lsm-vtab
06:53
Fix some compiler warnings in lsm_file.c. check-in: 23f16382 user: dan tags: lsm-vtab
2017-06-24
19:21
Disable shell tests for the .schema command if virtual tables are not available. check-in: c8186874 user: drh tags: trunk
18:10
Consider the values bound to SQL variables when determining whether or not a partial index may be used. check-in: 7b59c353 user: dan tags: partial-index-variables
16:35
Make sure the config.h header is included by ctime.c, if that header exists. check-in: c2ea6293 user: drh tags: trunk
16:03
Query planner tuning: When deciding between two plans with the same cost, bias the selection toward the one that does not use the sorter. check-in: f0ec36d4 user: drh tags: trunk
13:31
Make sure enough memory is allocated for pathological quoting cases when computing a quoted table name in the command-line shell. check-in: 0583b84a user: drh tags: trunk
2017-06-23
21:05
Merge all recent trunk enhancements into the apple-osx branch. check-in: 53b14a38 user: drh tags: apple-osx
15:47
When generating individual loops for each ORed term of an OR scan, move any constant WHERE expressions outside of the loop, as is done for top-level loops. check-in: 712267c9 user: dan tags: trunk
2017-06-22
16:51
When generating individual loops for each ORed term of an OR scan, move any constant WHERE expressions outside of the loop, as is done for top-level loops. Closed-Leaf check-in: e4a022be user: dan tags: or-optimization
2017-06-21
01:36
Enable pragma virtual tables for the integrity_check, quick_check, and foreign_key_check pragmas. check-in: 118f7bb3 user: drh tags: trunk
2017-06-20
18:19
Rename the azCompileOpt global constant to avoid a harmless compiler warning about a name conflict with a local variable. check-in: 94e420ec user: drh tags: trunk
17:43
Ensure that the query planner knows that any column of a flattened LEFT JOIN can be NULL even if that column is labeled with "NOT NULL". Fix for ticket [892fc34f173e99d8]. check-in: 48346268 user: dan tags: trunk
2017-06-19
11:44
Experimental "PRAGMA secure_delete=FAST" pragma. The intent is to overwrite deleted content with zeros without increasing the amount of disk I/O. Closed-Leaf check-in: f1682f0f user: drh tags: fast-secure-delete
2017-06-17
19:06
Avoid adding an artifical "LIMIT 1" on scalar subqueries that do not need it. This seems like a pointless optimization as it makes minimal run-time difference but does increase code complexity. Parked on a branch for historical reference. Leaf check-in: c21628e9 user: drh tags: subquery-limit-opt
18:49
Fix a missing comma in the previous check-in. check-in: f3db02f4 user: drh tags: trunk
17:55
Rework the code in ctime.c a bit to report on more compile time options. And to only output configuration options passed in to SQLite, not the default values of #define symbols set automatically. Also generate the large array in ctime.c using new script tool/mkctime.tcl, instead of entering it manually. check-in: 9a443397 user: dan tags: trunk
17:29
Ensure that the value of the THREADSAFE symbol is always included when reporting compile time options, even if it was not explicitly configured. Closed-Leaf check-in: 95141c64 user: dan tags: ctime-refactor
16:39
Add extra test cases for sqlite3changeset_apply() and ALTER TABLE ADD COLUMN. check-in: 603838fc user: dan tags: trunk
2017-06-16
19:51
Rework the code in ctime.c a bit to report on more compile time options. And to only output configuration options passed in to SQLite, not the default values of #define symbols set automatically. Also generate the large array in ctime.c using new script tool/mkctime.tcl, instead of entering it manually. check-in: bc1951d6 user: dan tags: ctime-refactor
18:31
Minor refactoring change to clarify how ATTACH works. No functional changes. check-in: 3944a32e user: drh tags: trunk
13:43
Prevent pagesize changes on VACUUM in encrypted databases even when running the VACUUM on an attached database. check-in: 11693849 user: drh tags: trunk
2017-06-15
16:56
Move the "shell_add_schema()" SQL function used by the ".schema" command of the command-line shell to a different spot in the shell.c source file so that it is not in the middle of an unrelated module. check-in: 254617a1 user: drh tags: trunk
16:45
Fix typo and improve the wording of the description of "Metadata" in the output of the sqlite3_analyzer tool. check-in: ca1ff707 user: drh tags: trunk
15:06
Merge the latest changes from trunk. check-in: 60105c22 user: drh tags: lsm-vtab
13:07
Fix harmless compiler warnings in the shell.c file check-in: 9afd7a2f user: drh tags: trunk
12:50
Improvements to the ".tables" command in the command-line shell so that it shows the name of all schemas if the name is anything other than "main". check-in: c7f778b7 user: drh tags: trunk
12:21
In the command-line shell, enhance the ".schema" command show that it shows the schema for ATTACH-ed databases in addition to "main". check-in: 48e08628 user: drh tags: trunk
00:52
Enhance the sqlite3_analyzer.exe utility so that it computes and shows the number of bytes of metadata on btree pages and per table and index entry. check-in: 43ad41ef user: drh tags: trunk
2017-06-13
16:52
Fix sqlite3rbu_close() so that the pzErrmsg parameter may be passed NULL. check-in: c433672d user: dan tags: trunk
04:31
Fix the processing of double-negatives in WHERE clause constraints with STAT4. Ticket [cfa2c908f2182] check-in: 35b34bdf user: drh tags: trunk
2017-06-11
20:17
Fix an off-by-one error that messes up the display of loop codes in the ".wheretrace" debugging output for queries with more than 62 candidate loops when SQLITE_ENABLE_WHERETRACE is on. check-in: 0bbdaf28 user: drh tags: trunk
19:51
When reusing a materialized view, make sure the estimated number of output rows is correctly initialized to avoid confusing the query planner. check-in: 87aceb41 user: drh tags: trunk
19:40
Fix the sessiondiff test module so that it does not run if the session extension is not enabled. check-in: 8f92b7a6 user: drh tags: trunk
18:26
Fix a potential null-pointer deference following OOM introduced by check-in [e39795d7] (unreleased). check-in: a2f77285 user: drh tags: trunk
2017-06-09
15:14
Merge enhancements and fixes from trunk. check-in: 3fd050c3 user: drh tags: prepare_v3
11:43
Update the documentation to make it clear that the table name parameter to sqlite3_table_column_metadata() may not be NULL. check-in: 2881ab1e user: drh tags: trunk
02:27
Adjust the implementation of the ".selftest" feature of the shell to avoid using the deprecated sqlite3_get_table() interface. check-in: 3168e2c9 user: drh tags: trunk
2017-06-08
14:35
Add a testcase() to confirm that an OOM on sqlite3DbStrNDup() is handled correctly in trigger.c. check-in: 343e5599 user: drh tags: trunk
11:14
Ensure pointer map entries are always added when a row that does use overflow pages replaces one that does not in an auto-vacuum database. Fix for [fda22108]. check-in: b30dfba8 user: dan tags: trunk
2017-06-07
22:32
In SQLITE_DEBUG mode, attempt to log the page number of the database that contained the problem when SQLITE_CORRUPT errors are seen. check-in: e39795d7 user: drh tags: trunk
19:46
Fix another lsmtest build problem. Add the "-trans BOOLEAN" option to "lsmtest speed2". check-in: 61853bc1 user: dan tags: lsm-vtab
16:25
Merge in trunk enhancements. check-in: f8bbb608 user: drh tags: prepare_v3
10:55
Cause the ANALYZE command to build sqlite_stat1 table entries for empty tables with the assumption that such tables really contain 10 elements. This gives better query plans for tables that are truely empty, but is likely to cause problems in legacy systems, so the change is kept off trunk. Some TCL tests fail on this check-in due to the new stat1 entries. Leaf check-in: c81f260c user: drh tags: analyze-empty-tables
2017-06-06
18:20
Add the SQLITE_DEFAULT_ROWEST compile-time option for changing the estimated number of rows in tables that lack sqlite_stat1 entries. check-in: 234ede26 user: drh tags: trunk
16:14
Fix a threading problem in lsm test code. check-in: 501238b9 user: dan tags: lsm-vtab
2017-06-05
19:20
Fix a subtle bug in the remember UDF of the kvtest.exe utility program. check-in: 9eea3670 user: drh tags: trunk
16:33
Fix a bug in test_fs.c that occurs when the first component of a path contains a GLOB or LIKE escape character. check-in: 73c70590 user: dan tags: trunk
13:28
For the kvtest utility, add the --vacuum option to "kvtest stat" and also run PRAGMA integrity_check with "kvtest stat". check-in: f3c25df4 user: drh tags: trunk
12:29
Fix the column width deduction logic in the command-line shell to account for multi-byte utf8 characters. check-in: ed0842c1 user: drh tags: trunk
10:31
Omit some of the fstree tests in vtabH if the PWD contains LIKE wildcards. check-in: ead29f9c user: drh tags: trunk
2017-06-03
20:09
Initialize a variable to zero to prevent an (incorrect) compiler warning of it potentially being uninitialized. check-in: 65182ce0 user: drh tags: trunk
19:16
Fix the SQLITE_PTR_TO_INT macro so that works on recent versions of LLVM on Macs. check-in: c4089ffb user: drh tags: trunk
18:27
Remove unused header file from kvtest. check-in: dd7e043f user: drh tags: trunk
17:24
In kvtest, add the ability to work with a hierarchy of files on disk, in addition to having all files in the same directory. check-in: f568f666 user: drh tags: trunk
15:17
Add the --nocheckpoint and --multitrans options to kvtest. check-in: 5828633c user: drh tags: trunk
2017-06-02
23:44
Merge all recent trunk enhancements. check-in: 1d23294d user: drh tags: lsm-vtab
23:32
Add the --fsync flag to kvtest, and document the --nosync flag. check-in: 7fdc78a6 user: drh tags: trunk
19:31
Work toward enhancing kvtest to measure write performance. check-in: fc73e7d2 user: drh tags: trunk
15:44
Change the name of the OP_Seek opcode into OP_DeferredSeek for better clarity of function. No functional code changes. check-in: ab33d299 user: drh tags: trunk
13:16
Fix a typo in the header comment of the "series.c" virtual table extension. check-in: d637feb4 user: drh tags: trunk
2017-06-01
01:53
Add a comment to the Lemon documentation regarding the security of the lemon.exe command-line tool. check-in: 4c2458c1 user: drh tags: trunk
00:54
Add interfaces sqlite3_prepare_v3() and sqlite3_prepare16_v3() with the extra prepFlags argument. Add the SQLITE_PREPARE_PERSISTENT option as one bit in that argument. check-in: 4a25c588 user: drh tags: prepare_v3
2017-05-31
17:30
Add the SQLITE_STMTSTATUS_MEMUSED opcode to sqlite3_stmt_status() for finding the heap memory usage by a single prepared statement. check-in: c26cf978 user: drh tags: trunk
16:21
Add the SQLITE_STMTSTATUS_MEMUSED option for sqlite3_stmt_status() that reports the amount of heap memory used for a single prepared statement. Closed-Leaf check-in: b57d5104 user: drh tags: stmtstatus-memused
16:09
Add the experimental "stmts" virtual table for introspection of prepared statements. check-in: cb4c5c66 user: drh tags: trunk
13:45
Avoid allocating excess memory to the KeyInfo objects. check-in: df785943 user: drh tags: trunk
13:27
Remove a completely unnecessary memset() from the INSERT code generator. check-in: 7d58836b user: drh tags: trunk
11:24
Very small performance increase in sqlite3VdbeSetNumCols(). check-in: 8885b446 user: drh tags: trunk
03:20
Reorder fields in the PgHdr object for a performance increase. check-in: 326e63d7 user: drh tags: trunk
02:58
Avoid unnecessary memory zeroing during expression list allocation. check-in: de28e651 user: drh tags: trunk
00:49
Size and performance optimizations to sqlite3ResolveExprNames(). check-in: af8c0fed user: drh tags: trunk
2017-05-30
18:34
Change sqlite3BtreeNext() and sqlite3BtreePrevious() so that they return SQLITE_DONE if they have already reached the end (or beginning) of the table. This gives a performance increase and size reduction. check-in: e972a386 user: drh tags: trunk
18:14
Omit a test of codepoint 0x202F (non-break narrow space) from the fts3 ICU tests. Different versions of ICU apparently handle this obscure codepoint slightly differently. check-in: 69ae6889 user: dan tags: trunk
2017-05-29
22:44
More efficient error handling and reset in the binding mechanism. check-in: 9a3e3b34 user: drh tags: trunk
17:59
Omit unnecessary fstat() calls for determining the database file size, resulting in smaller and faster code. check-in: dd61c736 user: drh tags: trunk
17:43
Fix an issue with OPT_FEATURE_FLAGS in configure.ac. check-in: 43ce3bd3 user: drh tags: trunk
16:45
Avoid unnecessary fstat() calls to determine the database size when transitioning into a read transaction on a rollback-mode database. Closed-Leaf check-in: 6c3476b5 user: drh tags: io-opt
14:57
Avoid unnecessary calls to fstat() to determine the database file size. check-in: c733a1de user: drh tags: io-opt
14:30
Fix a typo in a comment. No code changes. check-in: cb29b838 user: drh tags: trunk
14:26
Optimizations to the Walker object and its methods to make the code a little smaller and to help it run a little faster. check-in: 6854a34e user: drh tags: trunk
13:09
Correctly initialize the iSelectId of FROM clause terms that are a self join of a reused materialized subquery. Without this, the EXPLAIN QUERY PLAN output for the query will identify the subquery using the uninitialized (and arbitrary) iSelectId. check-in: 43c9ae37 user: drh tags: trunk
03:48
Improve shell help text for the '.open' command. check-in: 7cc940a9 user: mistachkin tags: trunk
2017-05-27
22:42
Smaller and faster vdbeSorterCompareText(). check-in: 542dc4c5 user: drh tags: trunk
2017-05-25
21:35
Small performance increase and size decrease in the btreeInitPage() routine. check-in: 6f415833 user: drh tags: trunk
17:27
Merge the LEFT JOIN query flattener fixes from 3.19.2. check-in: 6513e4a1 user: drh tags: trunk
00:08
The TK_IF_NULL_ROW expression node must be treated as a variable that references the table Expr.iTable. Proposed fix for ticket [7fde638e94287d2c]. check-in: 77fc2301 user: drh tags: trunk
2017-05-24
15:32
Fix harmless compiler warnings in FTS5. check-in: 57a60e95 user: mistachkin tags: trunk
04:18
Fix a problem in STAT4 equality estimation for multi-column indexes introduced by check-in [3e0590dee0e68cc1599]. check-in: cfb0d9e0 user: drh tags: trunk
2017-05-23
20:00
Remove the msvc.h header file from the autoconf tarball. check-in: 84996aef user: drh tags: trunk
19:35
Do not use strcpy() in the (obsolete) amatch extension. In releasetest.tcl, run Apple tests using -Os instead of -O1 check-in: 4440e420 user: drh tags: trunk