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50 check-ins using file src/vdbeaux.c version b00d3580

2019-05-07
02:57
Add the exprNodeCopy() routine that will safely memcpy() an Expr node that might be a size-reduced node. Leaf check-in: ab2ba8e7 user: drh tags: expr-node-copy-patch
2018-06-07
20:08
Add window functions lag() and lead(). check-in: ef342070 user: dan tags: exp-window-functions
17:45
Add support for window function first_value(). check-in: 060b2640 user: dan tags: exp-window-functions
15:54
Fix problems with the nth_value() function. check-in: 63002b9a user: dan tags: exp-window-functions
2018-06-06
20:51
Add implementation of nth_value() window function. check-in: eb1fb420 user: dan tags: exp-window-functions
19:48
Rearrange the order of some checks in the integrity_check pragma for a very slight performance gain. check-in: 4b853f02 user: drh tags: trunk
18:50
Fix the sqlite3BeginTrans() calls within the snapshot extension. check-in: 1fef7ad2 user: drh tags: trunk
17:45
Another minor optimization to OP_Transaction. check-in: d80077ae user: drh tags: trunk
16:28
Change sqlite3BtreeBeginTrans() to return the BTREE_SCHEMA_COOKIE, for a small speed improvement when starting new transactions. check-in: a10662aa user: drh tags: trunk
01:18
Fix the ".archive" command in the CLI (and the corresponding -A command-line option) so that it silently ignores filenames that contain "../" in their names. This prevents the "Zip Slip" attack. check-in: 27291f2d user: drh tags: trunk
00:36
Attempt to optimize the resolveExprStep() routine by mapping Expr opcodes into a subset of opcodes that resolveExprStep() cares about and only calling the routine when those opcodes are encountered. Is slightly faster, but it seems like the very slight performance bump is not worth the added complexity. Saved on a dead-end branch for historical reference. Closed-Leaf check-in: bad4d7a0 user: drh tags: dead-end
2018-06-05
23:51
Update the version number to 3.25.0 for the next development cycle. check-in: 7598236c user: drh tags: trunk
23:21
Avoid unnecessary loads of columns in an aggregate query that are not within an aggregate function and that are not part of the GROUP BY clause. check-in: e15e1006 user: drh tags: trunk
20:45
Add the OP_IfNoHope and OP_SeekHit opcodes used to reduce the number of unnecessary sqlite3BtreeMovetoUnpacked() calls when checking for an early exit on IN-operator loops. Futher optimizations are likely possible here. check-in: 6bf251af user: drh tags: multikey-opt-idea
20:04
Calculate non-aggregate expressions in the SELECT list of an aggregate query that does not use min() or max() once per group, instead of once per row visited. Closed-Leaf check-in: dce2dfbe user: dan tags: exp-agg-opt
16:16
Add implementation of last_value() window function. check-in: 2493ce1a user: dan tags: exp-window-functions
15:16
Use an OP_NotFound opcode to cancel futile IN operators early. The current implementation is suboptimal because it always runs teh OP_NotFound. This still needs to be enhanced to only do the OP_NotFound if no results have been seen on the current loop. check-in: 87a9fc50 user: drh tags: multikey-opt-idea
13:54
Merge trunk changes. check-in: 047295c5 user: drh tags: multikey-opt-idea
13:43
Update and correct the documentation on the OP_OpenRead, OP_OpenWrite, and OP_ReopenIdx opcodes. No code changes other than the addition of an assert(). check-in: 8a0b730d user: drh tags: trunk
2018-06-04
19:24
Version 3.24.0 check-in: c7ee0833 user: drh tags: trunk, release, version-3.24.0
18:55
Add implementation of window function ntile(). check-in: 3f093f60 user: dan tags: exp-window-functions
14:10
Merge changes from trunk. check-in: 95fbac39 user: drh tags: apple-osx
13:27
Merge recent changes from trunk. check-in: f8df2a8e user: drh tags: multikey-opt-idea
08:28
Merge latest trunk changes into this branch. check-in: 83d6416a user: dan tags: exp-window-functions
2018-06-02
19:14
Avoid using a misaligned pointer. check-in: 1ecb3aa1 user: drh tags: trunk
19:01
Fix the usage of posix_fallocate() so that it correctly responds to EINVAL returns. check-in: ce2c3e7a user: drh tags: trunk
17:00
Update a test case in malloc5.test to take into account that malloc() sometimes returns slightly more space than requested. check-in: 3d5eae1c user: dan tags: trunk
16:32
Work around a sanitizer warning about a pointer being only 4-byte aligned instead of 8-byte aligned. Closed-Leaf check-in: 1b807b51 user: drh tags: align8-fix
14:37
Proposed fix for the use of posix_fallocate() so that it handles EINVAL returns correctly. Closed-Leaf check-in: ab3a5539 user: drh tags: einval-from-fallocate
12:05
Fix the CSV extension so that it works with single-column CSV files. check-in: e336cf00 user: drh tags: trunk
11:31
Ensure that sqlite3AuthRead() is only call for TK_COLUMN and TK_TRIGGER expression nodes. This fixes a harmless assert() identified by OSSFuzz. Move the assert() into a position where it is tested even if the authorizer is disabled. check-in: d0c3beef user: drh tags: trunk
2018-06-01
13:30
Fix a bug in the SQLITE_ENABLE_SORTER_REFERENCES code causing an out-of-bounds array reference. check-in: 8cadaf58 user: dan tags: trunk
2018-05-31
19:14
More documentation typo fixes. No code changes. check-in: 66c24513 user: drh tags: trunk
19:00
Fix a harmless typo in a comment used to generate documentation. check-in: 5a2a88cb user: drh tags: trunk
2018-05-30
14:17
Add the Makefile.fallback makefile to the amalgamation tarball. check-in: ce3d0456 user: drh tags: trunk
07:36
Do not use the codec on the resetdb.test script. check-in: fe55cea0 user: drh tags: trunk
07:24
Fix a typo in an error message in the CLI. check-in: 80883980 user: drh tags: trunk
01:14
Fix the parser so that it builds with -DSQLITE_OMIT_CTE. check-in: 86ee267e user: drh tags: trunk
00:59
Fix a harmless compiler warning. check-in: 8d02c7a6 user: drh tags: trunk
00:54
Demonstration code on a possible technique for optimizing the use of IN operator on columns to the right of multicolumn indexes. If the OP_Noop generated where were really a new opcode that checked to see if there existed any entries in the index with a matching prefix, it might prevent unnecessary iterations of the IN operator. check-in: 92f0fe15 user: drh tags: multikey-opt-idea
2018-05-29
19:12
Increase the number of database handles opened by test script oserror.test to provoke an "out of file-descriptors" error to 20000 (from 2000). check-in: 3b00f734 user: dan tags: trunk
16:37
Fix autoinc.test and resetdb.test so that they work with all permutations. check-in: 89f56d6b user: dan tags: trunk
15:18
Add a comment to justify a goto statement. No code changes. check-in: f141d806 user: drh tags: trunk
14:29
More minor changes to test scripts. check-in: ce9b756f user: dan tags: trunk
14:06
Fix some test script issues caused by recent EXPLAIN QUERY PLAN enhancements. check-in: f808e228 user: dan tags: trunk
13:25
Do not run test file "resetdb.test" as part of permutation "inmemory_journal". check-in: 4921e5ba user: dan tags: trunk
2018-05-28
18:29
Do not require a statement journal in cases where REPLACE conflict handling is used to insert a single row, so long as the REPLACE operation cannot fire any triggers or foreign key actions. check-in: 469a62ca user: dan tags: trunk
18:25
When compiling with SQLITE_DEBUG, add run-time checks to ensure that no statement aborts unless either there have been no writes or else there is a statement journal. check-in: ce99c772 user: drh tags: trunk
17:43
Fix the build so that it works with -DSQLITE_TEST_REALLOC_STRESS Closed-Leaf check-in: 90ba2b2e user: drh tags: stmt-journal-testing
17:31
When compiling with SQLITE_DEBUG, add run-time checks to ensure that no statement aborts unless either there have been no writes or else there is a statement journal. check-in: 5a4542db user: drh tags: stmt-journal-testing