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109 check-ins using file src/vacuum.c version 836cadc9

2023-02-16
01:29
Do not compute unused result columns of subqueries. This optimization will potentially resolve the performance optimization request of [ticket baa5bb76c35a124c]. (Closed-Leaf check-in: 0c21b6a5 user: drh tags: branch-3.26)
01:21
Update test cases so that they work with TCL 8.7 and later. (check-in: e9b762de user: drh tags: branch-3.26)
2023-02-15
13:00
Update the configure script so that it contains the correct version number. (check-in: a7cbf308 user: drh tags: branch-3.26)
2019-01-22
18:20
Add the SQLITE_ENABLE_EARLY_CURSOR_CLOSE compile-time option which causes read cursors to be closed after their usefulness ends during a two-pass UPDATE. (check-in: 8790368b user: mistachkin tags: branch-3.26)
2018-12-12
11:57
OSSFuzz found a case where an assert() inside sqlite3ExprCompare() can be true. Test case added to TH3. (check-in: bc891ac6 user: drh tags: branch-3.26)
11:54
Fix a problem with using "<db>-vacuum" (the default) as the state database when resuming an RBU vacuum. (check-in: 6b7567fc user: drh tags: branch-3.26)
11:50
Do not use a partial index as a table scan in an IN operator. Fix for ticket [1d958d90596593a77420e59]. (check-in: c1c735a8 user: drh tags: branch-3.26)
2018-12-10
16:52
Make SQLITE_MFS_NSHARD a compile time setting. (check-in: b9a74151 user: dan tags: mutexfree-shmlock)
15:51
Add extra tests to shmlock.test (direct testing of xShmLock methods). (check-in: d2c785f9 user: dan tags: mutexfree-shmlock)
15:24
Rework the SQLITE_MUTEXFREE_SHMLOCK code to reduce contention. (check-in: d9157dd1 user: dan tags: mutexfree-shmlock)
09:45
Avoid a mutex in-and-out in unixShmBarrier() on this branch. Use __sync_synchronize() instead. (check-in: a8c5fd86 user: dan tags: mutexfree-shmlock)
2018-12-07
02:01
Fix the sqlite3ExprDup() function so that it correctly duplicates the Window object list on a Select that contains window functions. Fix for ticket [f09fcd17810f65f717]. (check-in: 65aafb55 user: drh tags: branch-3.26)
2018-12-06
18:58
Experiment with using an atomic CPU primitive instead of a mutex for intra-process locking with the unix-excl VFS. (check-in: 8f4cb9dd user: dan tags: mutexfree-shmlock)
16:54
Add test file wal2snapshot.test that should have been added as part of an earlier commit. (check-in: f6baa7e1 user: dan tags: wal2)
16:11
Issue a warning whenever a double-quoted string literal is used. (check-in: ac9ad504 user: drh tags: trunk)
14:24
Bump the version number to 3.26.1. (check-in: e97e053b user: drh tags: branch-3.26)
14:11
Fix a potential NULL pointer dereference that can occur in ALTER TABLE following an OOM. Test case in TH3. (check-in: 99a0951f user: drh tags: branch-3.26)
13:57
Ensure that ALTER TABLE modifies table and column names embedded in WITH clauses that are part of views and triggers. (check-in: e066b4e1 user: drh tags: branch-3.26)
03:59
Invoking the sqlite3_trace() or sqlite3_trace_v2() interfaces cancels any sqlite3_profile() that is running. (check-in: ec63d350 user: drh tags: trunk)
02:01
Remove the unused pColHash field from the Table object. (check-in: 3a2c0479 user: drh tags: trunk)
01:53
Fix a potential NULL pointer dereference that can occur in ALTER TABLE following an OOM. Test case in TH3. (check-in: ea50815b user: drh tags: trunk)
01:08
Fix a missing mutex in the sqlite3_normalized_sql() interface when it is called on a prepared statement that did not previously have a computed normalization of the input SQL. (check-in: 1a1a59c6 user: drh tags: trunk)
2018-12-05
23:56
Get rid of the hash table used to track IN operators in the sqlite3_normalized_sql() implementation. Use simple integer variables instead. (check-in: 272dc74f user: drh tags: trunk)
23:45
The sqlite3_normalized_sql() interface should not be transforming quoted identifier names into wildcards. Fix this, and at the same time simplify the code substantially. (check-in: e8540377 user: drh tags: trunk)
23:25
Bungled checkin. Ignore. (Closed-Leaf check-in: 9b6e9a6e user: drh tags: mistake)
21:55
Fix an imbalanced lock problem in sqlite3Normalize() introduced by the simplification in [94ea6379178e3ff6a]. (check-in: f6962437 user: drh tags: trunk)
19:42
Increase the version number to 3.27.0 for the next development cycle. (check-in: 8f8d6828 user: drh tags: trunk)
18:28
Merge enhancements and the ALTER TABLE bug fix from trunk. (check-in: edfc2acf user: drh tags: apple-osx)
17:48
Simplifications to the sqlite3_normalized_sql() implementation. (check-in: 94ea6379 user: drh tags: trunk)
17:31
Fix a test script problem on this branch. (check-in: 285d1c59 user: dan tags: wal2)
17:14
Fix a problem causing "PRAGMA journal_mode" to report the wrong journal mode (wal instead of wal2) under some circumstances. (check-in: 1d8d4f68 user: dan tags: wal2)
16:31
Fixes for snapshots API on this branch. Also ensure that the snapshots API cannot be used with wal2 mode databases (for now anyhow). (check-in: 19c61ab7 user: dan tags: wal2)
13:49
Ensure that ALTER TABLE modifies table and column names embedded in WITH clauses that are part of views and triggers. (check-in: f44bc7a8 user: dan tags: trunk)
13:39
Enhance the sqlite3_normalize_sql() interface so that it works even if the prepared statement was not initially compiled using SQLITE_PREPARE_NORMALIZED. Enhance the ".trace" command in the CLI so that it is able to access the full scope of functionality provided by sqlite3_trace_v2() and in particular so that it is able to show normalized SQL output using the newly enhanced sqlite3_normalize_sql() interface. (check-in: 7da617e9 user: drh tags: trunk)
2018-12-04
21:16
When compiled with SQLITE_ENABLE_NORMALIZE, always have sqlite3_exec() enable the SQLITE_PREPARE_NORMALIZE flag. (Leaf check-in: 28643d83 user: mistachkin tags: execWithNormalize)
16:51
Add the "index_usage" utility program. (check-in: df954552 user: drh tags: trunk)
14:33
Performance improvement in sqlite3_step() by creating a new mTrace flag for the legacy xProfile pointer that is set by sqlite3_profile(). (check-in: e28584e8 user: drh tags: trunk)
13:51
Small performance increase in sqlite3_step() for the common case where it returns SQLITE_ROW. (check-in: 89344826 user: drh tags: trunk)
01:18
Attempt to make the parser a little faster by storing the ON and USING clause in a single OnUsing object. (Leaf check-in: 6770ed08 user: drh tags: on-using-opt)
2018-12-03
23:57
Reduce the size of the parser tables generated by Lemon by splitting the yyRuleInfo structure into separate yyRuleInfoLhs and yyRuleInfoNRhs arrays. (check-in: 70fe8ec2 user: drh tags: trunk)
18:13
Increase a timeout in test file walprotocol2.test. To account for unix builds without HAVE_USLEEP. (check-in: 480be916 user: dan tags: wal2)
17:40
Remove the unused sqlite3Fts5UnicodeNCat() function. (check-in: 7149dacf user: drh tags: trunk)
16:14
Add the "remove_diacritics=2" option to the unicode61 tokenizer in both FTS5 and FTS3/4. (check-in: 06177f3f user: dan tags: trunk)
14:58
Update the autoconf makefile for MSVC. (check-in: 675aba1f user: mistachkin tags: trunk)
01:58
Remove two lines of unnecessary code, for a very small performance increase and size decrease. (check-in: 15824ccd user: drh tags: trunk)
01:47
Fix a parser bug in the use of parentheses around table-valued functions. (check-in: 58a51123 user: drh tags: trunk)
2018-12-02
01:15
Omit a line of code that has no affect on the outcome. (check-in: 5d933aa6 user: drh tags: trunk)
2018-12-01
21:13
Very slightly smaller and faster. (check-in: 27798f17 user: drh tags: trunk)
20:14
Sync this branch with the latest trunk. (check-in: 7a44fa5a user: dan tags: wal2)
12:34
Version 3.26.0 (check-in: bf8c1b2b user: drh tags: trunk, release, version-3.26.0)
2018-11-30
20:59
Fix a typo in a comment. No changes to code. (check-in: 23684cb8 user: drh tags: trunk)
18:22
Merge the pre-3.26.0 fixes from trunk. (check-in: 2c76ce4f user: drh tags: apple-osx)
2018-11-29
12:00
Fix the name of the trig function approximation in geopoly. No functional changes to the code. (check-in: 33576b12 user: drh tags: trunk)
2018-11-28
19:23
Fix a typo in a comment used to generate documentation. No changes to code. (check-in: 62360cea user: drh tags: trunk)
19:12
Update incrvacuum.test so that it works with builds that do not support mmap(). (check-in: 8eb62fd5 user: dan tags: trunk)
11:49
Update some test cases to account for SQLITE_OMIT_VIRTUAL_TABLE builds. (check-in: b53a9a3d user: dan tags: trunk)
11:09
Follow-up to [0bf0fd242b93c3bd30]: only reset the pager when adding a new codec, not when overwriting an existing codec. Also, improve a comment in the pcache1 subsystem. (check-in: 5c040fdb user: drh tags: trunk)
08:24
Changes to Makefile.in to allow testfixture to be built with SQLITE_USER_AUTHENTICATION. (check-in: 7b510f59 user: dan tags: trunk)
08:09
Remove -DSQLITE_USER_AUTHENTICATION from the "Unlock-Notify" configuration. Create a dedicated "User-Auth" configuration for testing this feature. (check-in: 8c41024f user: dan tags: trunk)
08:02
Fixes for SQLITE_OMIT_VIRTUAL_TABLE builds. (check-in: 9bcdec85 user: dan tags: trunk)
01:45
Always enable SQLITE_ENABLE_DESERIALIZE for the MSVC makefile as this is necessary to get releasetest.tcl to work. (check-in: d362dedb user: drh tags: trunk)
2018-11-27
19:47
Fix a failing assert() in sqlite3ResetAllSchemasOfConnection(). (check-in: 0ea049f3 user: dan tags: trunk)
17:02
Improvements to two cases in pragma4.test. (check-in: 3c893d9b user: drh tags: trunk)
14:41
Remove the sqlite3PagerUseWal() routine which was made obsolete by the [81629ba91475938b6ad] change. (check-in: 4331b499 user: drh tags: trunk)
14:34
Add a simple test case for Lemon. Always include assert.h in the Lemon-generated parser. (check-in: 9c9c46dc user: drh tags: trunk)
14:03
Fix to the error handling logic in the Lemon parser template. This does not affect SQLite since SQLite does not use that part of the Lemon parser template. (check-in: c6dfc59e user: drh tags: trunk)
09:57
Add an "#ifndef SQLITE_DISABLE_FTS4_DEFERRED" block around function fts3EvalDeferredPhrase() in fts3 in order to silence a compiler warning. (check-in: 6f4b0d04 user: dan tags: trunk)
2018-11-26
23:35
Merge recent enhancements from trunk. (check-in: e8c20a88 user: drh tags: apple-osx)
18:09
Do not allow direct access to internal-use SQL functions such as sqlite_rename_column() and sqlite3_rename_table() except when the new SQLITE_TESTCTRL_INTERNAL_FUNCTIONS flag is set. (check-in: 6e133054 user: drh tags: trunk)
15:00
Minor comment enhancement in alter.c. No changes to code. (check-in: 12920bcb user: drh tags: trunk)
2018-11-24
20:44
Fix a bug in the geopoly_ccw() function. Test cases in TH3. (check-in: 773c5c1d user: drh tags: trunk)
17:46
Make the winTruncate() method of the windows VFS be a no-op if there are outstanding references to the memory-mapped pages. Otherwise, memory might be deleted out from under those references when the file is remapped during the truncate operation. (check-in: ffce4aac user: drh tags: trunk)
16:07
Remove the unused mmapSizeActual field from the Windows sqlite3_file implementation. (check-in: 0e7aa622 user: drh tags: trunk)
2018-11-22
19:10
Fix a problem reading from temp databases in SQLITE_DIRECT_OVERFLOW_READ builds. (check-in: 81629ba9 user: dan tags: trunk)
2018-11-21
14:27
Improvements to the ossfuzz.c fuzz-testing module so that it works with -DSQLITE_OMIT_PROGRESS_CALLBACK and with -DSQLITE_OMIT_INIT. (check-in: d343f7d6 user: drh tags: trunk)
2018-11-20
18:09
Fix problems in pragma.c causing some PRAGMA statements to test the wrong schema-cookie before proceeding, or to try to open cursors on the wrong database ("PRAGMA foreign_key_check" only). (check-in: 6982f52f user: dan tags: trunk)
2018-11-17
14:59
Fix the regexp used to recognize libdl errors on OS-X. (check-in: 17400253 user: drh tags: trunk)
14:26
Fix harmless compiler warnings that appear with SQLITE_OMIT_EXPLAIN. (check-in: 5fff00b0 user: drh tags: trunk)
14:19
Remove a C++-style comment. (check-in: 645232f2 user: drh tags: trunk)
13:08
Fix a problem in test script e_fkey.test. (check-in: acfd0a05 user: dan tags: trunk)
2018-11-16
20:50
Fix a test case so that it works on windows. (check-in: 2d92d25f user: drh tags: trunk)
20:18
Add SQLITE_CONSTRAINT support to the xBestIndex methods on dbstat, sqlite_dbpage, and zipfile. (check-in: 5cd24e55 user: drh tags: trunk)
19:19
Update the explain virtual table to make use of SQLITE_CONSTRAINT. (check-in: b2d41ff7 user: drh tags: trunk)
16:04
Fix the JSON table-valued functions to make use of SQLITE_CONSTRAINT. (check-in: 3f34f4f5 user: drh tags: trunk)
15:41
Add an assert() to the generate_series virtual table to verify assumptions about the design. (check-in: cd13b499 user: drh tags: trunk)
15:08
Update the generate_series() table-valued function to make use of the new SQLITE_CONSTRAINT return from xBestIndex. (check-in: 4372ad64 user: drh tags: trunk)
14:36
In order to avoid exporting a symbol, use a macro instead of a function to replace sqlite3_complete() in the shell code when SQLITE_OMIT_COMPLETE is defined. (check-in: d584a0cb user: dan tags: trunk)
13:56
Enhance the xBestIndex interface of virtual table so that if the xBestIndex method returns SQLITE_CONSTRAINT then that particular combination of constraints is considered unusable and does not participate further in query planning. (check-in: 684013ce user: drh tags: trunk)
13:06
Fix comments and make magic numbers into #defines in the fsdir implementation. (check-in: c537c9c3 user: drh tags: trunk)
08:36
Fix a problem with virtual table "fsdir" and some join queries. (check-in: 7fffcee0 user: dan tags: trunk)
01:42
Improvements to the CSV virtual table. (check-in: 0406ecbb user: drh tags: trunk)
2018-11-15
19:12
Fix typos in the previous check-in. (check-in: 9b37bbf5 user: mistachkin tags: trunk)
16:56
Include geopoly in the compiler-warning script. (check-in: 3d947e1e user: drh tags: trunk)
13:51
New fuzztest cases. (check-in: e8316ba4 user: drh tags: trunk)
2018-11-13
20:21
Fix a potential buffer overread in the dbstat virtual table when processing a corrupt database file. (check-in: a62e6b59 user: drh tags: trunk)
19:51
Turn on ASAN for the dbfuzz2 utility. Fix a buffer overread associated with sqlite3_deserialize(). (check-in: 4e38f27b user: drh tags: trunk)
2018-11-12
15:20
New hyperlinks in comments used to generate documentation. No changes to code. (check-in: f9755f81 user: drh tags: trunk)
13:20
Fix a use-after-free problem in the fts5vocab virtual table. (check-in: ac69d169 user: dan tags: trunk)
2018-11-10
20:07
Merge the read-only shadow table and defensive mode enhancments from trunk. (check-in: 977fc44e user: drh tags: apple-osx)
18:23
Add support for read-only shadow tables on virtual tables. Added the SQLITE_DEFAULT_DEFENSIVE compile-time option that can put SQLite in defensive mode by default. (check-in: 9c685171 user: drh tags: trunk)
04:14
Remove a NEVER() that is reachable after all. Reverts checkin [9292d3351c40339]. (Closed-Leaf check-in: c5dc7fb8 user: drh tags: read-only-shadow)
03:47
Merge fixes from trunk. (check-in: bf88efce user: drh tags: read-only-shadow)
2018-11-08
17:32
Improved documentation for SQLITE_DBCONFIG_DEFENSIVE. Add a NEVER() macro on an unreachable branch. (check-in: 9292d335 user: drh tags: read-only-shadow)
2018-11-07
16:46
Performance improvement in subroutine that decides whether or not a table is read-only. (check-in: 6e4968b0 user: drh tags: read-only-shadow)
16:12
Merge the onefile permutation fix from trunk. (check-in: e543bff8 user: drh tags: read-only-shadow)
14:41
More test-case adjustments for defensive mode. (check-in: 911e8a17 user: drh tags: read-only-shadow)
13:41
Merge the permutations fix from trunk. (check-in: b753d849 user: drh tags: read-only-shadow)
02:17
Add the SQLITE_DEFAULT_DEFENSIVE compile-time option. Fix up test cases so that they work with DEFENSIVE enabled. (check-in: 3212733c user: drh tags: read-only-shadow)
2018-11-06
19:26
Enable DEFENSIVE mode by default for tests. This requires lots of case of turning DEFENSIVE off in order to dodgy things to the database for testing purposes. No all of those cases are yet handled, so "make test" does not run to completion. (check-in: a1d6c671 user: drh tags: read-only-shadow)