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tclsqlite-db-copy-fix
Commit Graph

19141 Commits

Author SHA1 Message Date
drh
0cf237c5b0 Be more aggressive about reusing subqueries that appear on the RHS of IN 
operators that have been replicated due to the predicate push-down optimization.

FossilOrigin-Name: 2accf32b6e45a396503c29eecc14a103bcc7b4c313cde921b26b489704060177
 2024-07-04 16:57:11 +00:00
drh
6357d35da9 Add comment using the name "predicate push-down optimization" to what we have 
also called "WHERE-clause push down".  No changes to code.

FossilOrigin-Name: be77fe701c7b7d3407800e1ed6a4c8be14035831790419cc99362bff41c65b60
 2024-07-04 11:15:32 +00:00
drh
5b070cfa0f Show the creation of IN-operator Bloom filters in the EXPLAIN QUERY PLAN output. 
FossilOrigin-Name: c10a1b99d47a4c93bdb16e646f6a21add570d6dbb34fd91a32f8abacdb28712b
 2024-07-03 20:10:42 +00:00
drh
c4c2589ff0 Add a new sqlite3FaultSim() call to OP_NotFound to use for testing purposes. 
FossilOrigin-Name: 84fd275bfd8afada50d3a5ac491d2b866671f8f0d2496bd240cf4bfdd74e7399
 2024-07-03 18:56:56 +00:00
drh
6172e4355f Use a Bloom filter to improve performance of IN operators when the RHS of 
the IN operator is a subquery.

FossilOrigin-Name: 1933496539c19cbf429a39d6b0b1c6b1b2af50733a3c4aea4920990ced652f6a
 2024-07-03 17:51:48 +00:00
drh
8960c02b91 Reword the deliberate_fall_through macro along the lines suggested by 
[forum:/forumpost/7ec11023dd|forum post 7ec11023dd] so that it works better
with LLVM, while preserving compatibility with MSVC and older GCCs.

FossilOrigin-Name: fc248a4a0a232a95a79e24e57faedb5d824c3bf0aa62054b72339257dc9c18b3
 2024-07-02 12:16:29 +00:00
drh
2143714d9f In the CLI, if the XDG_CONFIG_HOME environment variable is not set, then also 
search in ~/.config/sqlite3/sqliterc for the initialization file.
See [forum:/forumpost/5cc6d059e9e092ed|forum thread 5cc6d059e9e092ed].

FossilOrigin-Name: 33841c9c3cb57beeb3884d4b0715d26199926b7d3e4d3dd1ab6f5603b5a62591
 2024-07-02 11:30:10 +00:00
drh
6adbdac676 Add a NEVER() around a branch in sqlite3ExprAffinity() that is designed to 
prevent an infinite loop, but which can now never be reached due to recent
changes.

FossilOrigin-Name: da0b794852f8ccba5bd30395892044ec71b148075608406867785395e1f50b31
 2024-06-29 12:22:32 +00:00
drh
f13e2d22fe Additional steps to make sure calls to sqlite3ExprToRegister() are sane. 
FossilOrigin-Name: 1c42d7176b228791f99bc9971d92a9ab67b1e2956ca4f8d934bd1a3e596d6c80
 2024-06-28 18:07:10 +00:00
drh
076bd5758b Do not convert an expression node that is already TK_REGISTER into a 
new TK_REGISTER.  This is a follow-up to [663f5dd32d9db832] that fixes a
bug discovered by dbsqlfuzz.

FossilOrigin-Name: fcb669cfaa8a59ca710504d5aaa1936f65a6da8ff13473ad84458f97a6fd1f49
 2024-06-28 17:14:00 +00:00
dan
1d8cde9d56 Enhance the output of ".scanstats vm" to include the absolute number of ticks for each VM instruction, instead of just the percentage of the total. 
FossilOrigin-Name: 1535828335d2b0eccebae952ed2bc70cc0cd893bd4b079d26b80deff9b5f752b
 2024-06-24 14:53:14 +00:00
stephan
e9540e2881 Internal doc typo fixes, as reported in the forum. No code changes. 
FossilOrigin-Name: ea16b286b4344c1833ca3d17b6d315fb4ddcb99bcc232ff6444debeb634881f2
 2024-06-18 09:58:39 +00:00
drh
9175b18226 Do not omit the ORDER BY clause from a recursive CTE just because the 
query that contains the CTE also contains an ORDER BY clause.  Plus
other changes imported from the recursive-cte-orderby-fix branch.

FossilOrigin-Name: 13242289c5d412b706f50fc7e1553032ea3a52d41a3e34e155432adaf0551481
 2024-06-14 23:13:54 +00:00
dan
718c5ff551 Fix a problem with rolling back hot journals using the unix-dotfile VFS. 
FossilOrigin-Name: a44703135e8dd3cc67e548e1aa3c42e71df127fb7b593ccfc06025ec42a501fd
 2024-06-12 15:50:35 +00:00
stephan
6975fc56f7 Slight API doc tweak for xCheckReservedLock(), based on forum feedback. No code changes. 
FossilOrigin-Name: 2af7a96f6868a4529d689702926b350a4c00082f14da0ded5a8eaea295682d17
 2024-06-12 11:39:29 +00:00
dan
41caf1cdfa Handle the case where unix-dotfile is used with URI parameter nolock=1. 
FossilOrigin-Name: 3925a5b904e159d54455cfc73fe837a9c6ea3a6d60da63afde3242b4d6f67c90
 2024-06-11 20:28:56 +00:00
dan
f6ec2b5946 Fix a problem with rolling back hot journals using the unix-dotfile VFS. 
FossilOrigin-Name: 4ae3300b79e03381fd7f1033bb7978bb6367369790f17c3bdacac51e205edaf9
 2024-06-11 20:03:32 +00:00
stephan
cf2710e0b6 When compiling shell.c in SQLITE_SHELL_FIDDLE mode, ensure that the shell_main_exit goto label is reachable. 
FossilOrigin-Name: 06e6f64533563ab9c059b773e5f0d78085df716f2624e547b7259f6789c3ffe0
 2024-06-11 17:04:02 +00:00
drh
941602ae4f Change constant expressions to pre-computed constants, because apparently 
MSVC on ARM requires that.
[forum:/forumpost/4feb1685cced0a8e|Forum thread 4feb1685cced0a8e].

FossilOrigin-Name: 6c103aee6f146869a3e0c48694592f2e4c6b57ecdb4450f46e762c38b4e686f1
 2024-06-11 14:36:56 +00:00
drh
34e4c6f732 Improved header comment on the sqlite3FpDecode() implementation. 
For the fpdecode() SQL function (available in debug builds only) limit
the value of the third parameter (mxRound) to be positive.

FossilOrigin-Name: 56af06fa12104a1fe119d7087746011183af053834eac72d0fb69f60d98054c6
 2024-06-10 12:43:03 +00:00
drh
2fbb3fb532 Disable the omit-noop-join optimization when there are 64 or more terms in 
the ORDER BY clause.

FossilOrigin-Name: 40de3939792e17df25598b3e60d1cebcecde2b00832acd55604f14b21398a9a7
 2024-06-09 17:34:03 +00:00
drh
4703b7d092 Better optimize queries that use parameters in the LIMIT clause. 
FossilOrigin-Name: e58cb304d1e0ec6e30260a165aaccc2cf096ce6c999efb06683c4ef600ee12ef
 2024-06-06 15:03:16 +00:00
stephan
404ddadbd4 Re-enable [dcc2bb2c562e97e090174], as [296eeb26c816bc73] corrects the wasi-sdk build problem the former check-in triggered. Reported in [forum:143e40d7f4e79c66|forum post 143e40d7f4e79c66]. 
FossilOrigin-Name: f66608bd356efe492d1003663c2e1ccd7cfbf2d40393d256f8720149904ad2d5
 2024-06-06 12:22:19 +00:00
drh
fd6beda14b Adjust the parser so that the value of TK_ISNOT is similar to the value of 
TK_IS.  This helps the compiler generate faster switch() statements on the
Expr.op fields when there are cases for TK_ISNOT and other common operators.

FossilOrigin-Name: 34f05c3d89b2dd15e4b0d1ba292df7de3dfc54b505c0ba145cc3db52cf020845
 2024-06-06 01:21:57 +00:00
drh
48f5e52728 Small performance optimization in the operatorMask routine of the WHERE 
clause analysis logic.

FossilOrigin-Name: 9d69fc1c87ae673356869ecd89eb19734fd126702c0f9fe595336ecd7be89e08
 2024-06-06 01:00:50 +00:00
drh
b458cbb601 Small performance optimization in the allowedOp() routine of the WHERE 
clause analysis code.

FossilOrigin-Name: 4ba8be544711e07748e8dd3ca6b81f9897906061c0a1a1bb4fb3808dc27f734b
 2024-06-06 00:49:36 +00:00
drh
0de7da1998 Small performance optimization in the codeEqualityTerm() routine of the 
code generator.

FossilOrigin-Name: 8080c6eafd1280ea870a6ab1ba715ac5af67387e69771be6cbd46dda77c3eaa8
 2024-06-05 20:41:36 +00:00
dan
e3eefe00dd Fix a very obscure issue where the name resolver could get confused if aliases like "sqlite_schema" or "sqlite_master" were used in a query involving the sqlite_temp_schema table. 
FossilOrigin-Name: a096eb7554952f8137c6e9330c328164719fb27e958787fbd503bcd1364e6ae4
 2024-06-05 11:36:58 +00:00
dan
7d24afa0de Better handle WHERE terms that are common to two or more OR branches when planning virtual table queries. 
FossilOrigin-Name: 1976c3f7e1fe77cf3367710e8ada230a3672ed374e316425164e42b2622526c7
 2024-06-04 17:26:15 +00:00
dan
077f9b14f1 Fix a couple of memory leaks in the shell tool code that could occur when processing errors. 
FossilOrigin-Name: e84f09d469ee76a5b5e44baf6a69b90c69d4160fa4c32de04a96f868643acd96
 2024-06-04 15:07:38 +00:00
dan
c5a0ed7b43 Allow shell command "testctrl pending_byte" to be used in unsafe-testing mode only. 
FossilOrigin-Name: afa45c4f5afc9248ca4a1e775404a460280bb9a58a92eae508ae00fb2f675dc6
 2024-06-04 14:32:31 +00:00
drh
8741ca0819 Address a corner-case associated with the call-function-once optimization 
of check-in [663f5dd32d9db832] that was causing a (harmless) use of an
uninitialized bytecode register.
dbsqlfuzz 8a44f675401a8b1f68a43bf813c4f4f72ad8f0ea

FossilOrigin-Name: b37ac2d020873b78efa164036db4056406a67330679f850775da520cd8027cb9
 2024-06-03 18:04:10 +00:00
drh
586b2b2a54 Omit an unused #define. 
FossilOrigin-Name: 9c2de28a146e4cdfa4c05bf8dbd4ebb1156c71104001edf68e6dd5db21deb91f
 2024-06-03 12:36:43 +00:00
stephan
e1b55a5af9 Modify three #if checks in os_unix.c to improve handling of SQLITE_OMIT_WAL on WASI builds. Based on the discussion in/around [forum:57e918431735128a|forum post 57e918431735128a]. 
FossilOrigin-Name: 296eeb26c816bc734530cf446922f25be970b901c884df1a98083502f0d1e9f5
 2024-06-03 07:22:28 +00:00
drh
0507e6e388 Be more aggressive about freeing memory associated with the 
sqlite3_index_info.idxStr field.

FossilOrigin-Name: 85dcd0a8479a658203833cfd75f22813faa26d4793ebfbb8843035d683bee105
 2024-06-02 10:52:35 +00:00
dan
af35432400 Further tests for OR constraints on virtual tables. 
FossilOrigin-Name: ff4a30056f8dbcbd045afdbee485f6671c3580b95187144aa9a77c97dfda2647
 2024-05-31 20:32:10 +00:00
dan
cadfdd4e09 Better handle WHERE terms that are common to two or more OR branches when planning virtual table queries. 
FossilOrigin-Name: 4edd9b29f58621335b8a562280c991c34804bbba090f90c951261d043cff1965
 2024-05-31 19:26:22 +00:00
drh
5ef9c89977 Do not even try star-schema detection if the join has fewer than 5 tables, 
since 5 is the minimum for a positive detection.

FossilOrigin-Name: a07ec16bbc056fbc23a7bd58e5e32ef691c13e9babeb542918cf9a01cac40c20
 2024-05-31 15:39:00 +00:00
drh
d72ca8f810 Document the OP_Explain opcode. Add the WhereLoop.rRun value as P3 in 
OP_Explain opcodes associated with WhereLoops, for testing purposes.

FossilOrigin-Name: 996c46e61d9a53a54018672dd407b8ba8c480dd6795393428f9d5fcb81b47ab5
 2024-05-31 14:39:42 +00:00
stephan
2f755cdc3a Back out [dcc2bb2c562e97e090174], as it breaks the --with-wasi-sdk builds. 
FossilOrigin-Name: 62199562c26f77d059aa0bbda42a421a7aece828aa94d14a40c701a6384d1cf6
 2024-05-30 21:54:16 +00:00
stephan
4c86b2db0f Remove the unconditional SQLITE_OMIT_WAL when building in wasi-sdk mode, per [forum:80003e91a7a6cb4d|requests in the forum]. 
FossilOrigin-Name: dcc2bb2c562e97e090174d4d0970bfa1551e5eb4db022e6d232c4dd786818e45
 2024-05-30 17:56:26 +00:00
drh
1344b540d9 Ensure that the second pass call to wherePathSolver() always reports a positive 
value for the estimated number of output rows.  This fixes a long-standing
(though exceedingly minor) problem that was only revealed by a new assert()
added yesterday.  dbsqlfuzz 545d6debc2da496ab2b915e33ea34d9a35a935df

FossilOrigin-Name: a47c644fef71f3ab3dc584ea917eaab9a8e5b4c9dcb57bdd29747ba32108e85f
 2024-05-30 13:27:29 +00:00
stephan
5b7048d5af Update shell.c to use the msteve fork of linenoise, per /chat discussion. 
FossilOrigin-Name: ee92fa8366b743266b17c692499087c0d11b9302d096c3dfb4e6356b467e939e
 2024-05-30 11:14:16 +00:00
drh
1085eee098 Change an assert() (incorrectly) added by the previous check-in into a 
testcase().

FossilOrigin-Name: 5e64b541d175c10a5df67ef3419ecd74fcb51392af5f5458973cea85ee6a3246
 2024-05-29 14:32:22 +00:00
drh
eccb42eb0e Small performance enhancement in wherePathSolver() 
FossilOrigin-Name: bdab69641df4704f7b080cf7841bbf39da9160222f7b664a79ed662b70ca7b0a
 2024-05-29 14:04:52 +00:00
drh
bb24c75b41 Improvements to comments and debugging output. 
FossilOrigin-Name: 85164ee155e42809fe34e6c6b6fbe0a2baa9d616326a811173a0b0c8a885fcce
 2024-05-29 13:29:39 +00:00
drh
54bfc9435f Remember the amount of the heuristic cost adjustment associated with 
star schemas and compensate when computing whether or not to use Bloom
filters.

FossilOrigin-Name: 21daf2463ef70e6b5dc73ba5bf62b3d2fb504e9189f645ac74b513d3d8b979c2
 2024-05-29 10:40:53 +00:00
drh
c34ff12c59 Use a heuristic in the query planner to help it better cope with large 
star schema queries.

FossilOrigin-Name: a98be0f548f277fab8f38a2dec6ddcbe7a7fff27856ba19e76ad8c5641894b7b
 2024-05-29 00:38:12 +00:00
drh
d60a503b4c Fix a couple of assert() statements so that they cannot fire 
when the SQLITE_TESTCTRL_INTERNAL_FUNCTIONS debugging capability
is activated.  dbsqlfuzz f5b347cf167a62fbe08062b2feee65cb9306e363.

FossilOrigin-Name: 273504b74cb9c3cfa2497a1339e706a1f2d2c3ce81b23a16beb47da9292535e0
 2024-05-28 19:08:18 +00:00
drh
05665e9de9 Tweaks to the query planner so that it is better able to deal with star 
queries with many dimensions and bad indexes.

FossilOrigin-Name: 1e49081001f93b75ee499536f8a61a0f49225a1745117bb9267249c38c4bf803
 2024-05-28 18:53:36 +00:00