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Author SHA1 Message Date
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
mistachkin
6593b340ff Fix harmless compilation issues seen with MSVC. 
FossilOrigin-Name: 816d4749384c7f398912c905a16c83b88f4c55632050b4c6117c61301d1a53e1
 2024-06-05 20:50:39 +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
6d98c55b56 Fix an fts5 problem with secure-delete mode causing integrity-check to erroneously report a corrupt index. 
FossilOrigin-Name: 80bef4d60ba9e3679ea66655ca36fcfaa888775a3d1598d50e9649ad84a95b63
 2024-06-05 14:47:54 +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
mistachkin
ecaa021759 Fix harmless compiler warnings seen with MSVC. 
FossilOrigin-Name: 93ac8573eead9b785a24715239e71cd3ef730bf16332cf3b5e264a6491374cac
 2024-06-04 19:21:16 +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
9c3eef8c0d Have fts5.xBestIndex return SQLITE_CONSTRAINT, instead of a large cost, when no usable plan can be found. 
FossilOrigin-Name: 7c470945372dc98610f7c9840ce8cab18c19b655352f0187e4f31040cea77363
 2024-06-01 17:56:58 +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
7da33383c7 Remove an unused parameter from fts5ConfigParseSpecial(). Compiler-warning 
fix only - no functional changes.

FossilOrigin-Name: c08dd245f7706f2fd2269d700be480477619a722e27e6b439462ae543302c49f
 2024-05-29 15:16:17 +00:00
drh
c327bd0354 Use a heuristic of artifically lowering the cost of fact tables in a 
star-schema query in order to prevent plans where the fact tables are
in outer loops from being trimmed by the path limiter.  This helps to
generate better (faster) query plans in those particular cases.

FossilOrigin-Name: 38db9b5c83dfb3021333365b2f6b11e3b54afd7033e9f4dadf0c0df1d4b082d8
 2024-05-29 15:08:20 +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
d79ce8a459 Fix typos in the star-schema test cases. 
FossilOrigin-Name: 4080937353985eb391f70a3a7fae890823cf01d19c52939e343fb2504f3f8659
 2024-05-29 09:53:19 +00:00
larrybr
7c6256234c [forum:/forumpost/c9b8d923d5|Fix sqldiff out-of-bounds char classification error mentioned in the forum.] 
FossilOrigin-Name: b31933d87301bd93763f0923e0ce06a183700875e6107c9f185faffbd99797d9
 2024-05-29 03:35:40 +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
drh
efe474af97 Increase the number of parallel paths in the query solver from 12 to 20. 
In the .wheretrace output, sort the parallel paths in order of increasing
cost.

FossilOrigin-Name: 8ba2c2f5cb31f7bcc426bec78457316ef11d0b5debf24e8da8c6fc2f95878b1e
 2024-05-28 12:41:11 +00:00
drh
6fa46d0e06 Documentation typo fix. [forum:/forumpost/772d6688f5|Forum post 772d6688f5]. 
FossilOrigin-Name: 1f2f9c709eaee3c45664afa062f0fb2b912de446581066c87ea144b8ba55b55c
 2024-05-28 11:24:18 +00:00
dan
2386943f19 Fix a problem with the error message reported by fts5 in some OOM cases. 
FossilOrigin-Name: c7aaa28f786567e29ebee3848283b5c740dd3b8144dc14372e56260ae1b76922
 2024-05-28 10:57:24 +00:00
drh
18970dac18 Improve the automatic-index decision such that no attempt is made to create 
an automatic index on a column that is known to be non-selective because if
its use in other indexes that have been analyzed.  See
[src:/tktview/8ff324e120|ticket 8ff324e120] and
[forum:/forumpost/b21c2101a559be0a|forum post b21c2101a559be0a].

FossilOrigin-Name: 2a7603c327d11d5e6bc4d40c29151fea544d650f51200ff76efb921adb0c38df
 2024-05-28 00:16:52 +00:00
drh
38af125238 Query planner tuning: Increase the maximum number of simultaneous solutions 
to track int eh solver from 10 to 12.

FossilOrigin-Name: fe2e1dadbacbe6392ceed44fd287a2ed82189cb8055f35631d37967d9a7a5d1d
 2024-05-28 00:01:07 +00:00
drh
b23f92b286 Avoid creating an automatic index on a column that is known to be not very 
selective.

FossilOrigin-Name: 70409763f70faa2a0f4f072fd318a687b109a0905cc57906ad7f80d2885fe6d9
 2024-05-27 21:55:01 +00:00
drh
eeb8506c18 The previous check-in was a little two aggressive about skipping the 
initialization of entries in the CellArray.ixNx array.  Fixed here.

FossilOrigin-Name: 1b6d1fbcdecf14bc79dc7b5df50e585d2fcc1484a9987b863c190e8f7ba2c39f
 2024-05-27 19:52:24 +00:00
drh
d081df0a5d Fix typo in comment used to generate parts of the documentation. 
[forum:/forumpost/da5a2ca4db|Forum post da5a2ca4db].

FossilOrigin-Name: 428aadf0c71473ccb0681b2b7146281c62949ee99556873e49895d44eec7aee5
 2024-05-27 18:15:08 +00:00
drh
09d8e696dc Very small performance increase and size reduction by removing unnecessary 
ALWAYS() macros from the btree balance logic and replacing them with
special initialization of CellArray and some assert()s.

FossilOrigin-Name: 32b79041d9b6858e4ffade5841898619c7d25d20c4638bf85447a2ca9cc4a3d3
 2024-05-27 15:13:49 +00:00
stephan
20c118faec Doc typo fix. No code changes. 
FossilOrigin-Name: eaf07fe69f383938dd394f58cedad3f16f146d9b48e66bc1ba17446cf75ffb3f
 2024-05-27 13:41:46 +00:00
drh
fefe24ddf8 For compatibility with PostgreSQL, when right-hand side of the ->> operator 
is negative, it should index from the right side of the JSON array on the
left-hand side.

FossilOrigin-Name: 82365a45b96536c1146a384e5d3efce80a6ec469a54713c7f40bf15eb834b5fd
 2024-05-27 13:24:39 +00:00
dan
09f87094bd Fix a possible buffer overwrite in the ".import" command. [forum:/forumpost/0c447f0548|forum post 0c447f0548]. 
FossilOrigin-Name: 0fd958fa9b56a8ef254127e29800ca2a267590e86edf739bd339239b25a5da6e
 2024-05-27 11:35:05 +00:00
drh
ee8f926027 Add new assert() statements to help out a static analyzer. Response to 
[forum:/forumpost/17fe8ac32e0de4f5|forum post 17fe8ac32e0de4f5].

FossilOrigin-Name: 857f6d530949221d154b5120ecc2aa906418bec6f69d1c13197a432ba3cad8eb
 2024-05-27 11:31:02 +00:00
drh
4ed784d1e8 Ensure that sqlite3ViewGetColumnNames() returns non-zero on any error. 
dbsqlfuzz d9de2a508f693e5a228d7a01d5341e3c64326fbb.

FossilOrigin-Name: 57aeb3a287fc190bf8d438a7b03d6715c05fd3fd71559c6a14d7bd910d37b38d
 2024-05-25 23:13:15 +00:00
drh
a7f3b0f85b Ensure that queries like "SELECT func(a) FROM tab GROUP BY 1" only call the 
func() function once per row.  Fix for the issue described in
[forum:/forumpost/bf8f43aa522c2299|forum thread bf8f43aa522c2299].

FossilOrigin-Name: 663f5dd32d9db83249fcf85602a756464ece74e1899dc881ac9519d872638441
 2024-05-24 23:44:48 +00:00