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21841 Commits

Author SHA1 Message Date
drh
871f45441c Remove an obsolete comment. No changes to code. 
FossilOrigin-Name: 4135cb024456288d9c85aef5fb572dbb591527dd33d9a60ca5946b712c269941
 2020-04-20 14:05:54 +00:00
drh
7a43100afb Add the --bom option to the ".excel", ".once", and ".output" commands 
of the CLI.  Also fix the "--all" option on ".help" so that it works with
two dashes in addition to just one.

FossilOrigin-Name: d5b0def96ba6d90f47bc96fab1ccf9c501d84885d086744035b16fd96f3e248c
 2020-04-18 14:12:00 +00:00
drh
1d9ea27f7e Fix the ".excel" command and the ".open -x" and ".open -e" command so that 
they work better when running from an in-memory database and on Windows
and when running from a script.

FossilOrigin-Name: 07752164c2bf00b6885808533bbdb2cefbf1bf281a887b0b4f6316649a6cb810
 2020-04-17 23:46:54 +00:00
dan
054a081555 Merge accidentally created fork. 
FossilOrigin-Name: cb772b7a8fb53694cb267e74c11f49d2b9fd6920821c4e232f90ec35739c8904
 2020-04-16 15:56:03 +00:00
dan
7576a68c8c Improve corruption detection in fts3 shadow tables earlier in order to prevent an assert() from failing. 
FossilOrigin-Name: a9ec8c8f80a59badabb0afdb4189f0fd2934f936530d4151de395b3a7e7c1f1f
 2020-04-16 11:35:27 +00:00
drh
c39b121a95 Clarification of the byte-order determination for UTF16 inputs to routines 
like sqlite3_bind_text16() and sqlite3_result_text16() and others that
accept UTF16 input strings.

FossilOrigin-Name: a42fdcf54bcbd72a301dad4a040346dc48e67cacab43479ec618f5c32108c55f
 2020-04-15 17:39:39 +00:00
drh
f05dd03a6e Build the UINT collating sequence extension into the CLI. 
FossilOrigin-Name: 2b8c6b035a276029850de02651712a5fd69f4dfee45083d24b9d1f998004829b
 2020-04-14 15:53:58 +00:00
drh
e6a85962e7 Add the UINT collating sequence extension. The implementation is copied out 
of the "natsort" branch.

FossilOrigin-Name: 6f46c6e3e3c471ca864d7596e0211ee90316b784c8fe22c7ae177c9d29731dc7
 2020-04-14 15:48:55 +00:00
mistachkin
43e862723e When compiling the shell for WinRT, avoid using Win32 APIs that are unavailable. 
FossilOrigin-Name: 85d3dc8c50d8dbb8eac1956e8976e861d3b671e03355ca9257060fa3dca51cc4
 2020-04-09 15:31:22 +00:00
drh
75b5f22c01 Merge recent trunk enhancements into the bytecode-function branch. 
FossilOrigin-Name: 7e6576ec00fde277c5c7abac264f7ec7e531de00c4e112bf733a07fe703fadcc
 2020-04-09 15:07:22 +00:00
drh
ad996da0f6 Merge trunk enhancements into the approximate-analyze branch. 
FossilOrigin-Name: 17901ea6a1951b8c55671408841901c6660e3f8099378204f080b171a684d718
 2020-04-09 15:01:09 +00:00
drh
4b3282d8a0 Limit LIKE/GLOB pattern length to 100 bytes (default is 50K) when running 
dbsql cases in the fuzzcheck utility.

FossilOrigin-Name: 10306118e8591e727af477a1a15d136852d21170e645bd0e75f7c88346b037d7
 2020-04-07 15:07:11 +00:00
drh
aa0696ee9a Add the --spinner option to the fuzzcheck test program. 
FossilOrigin-Name: b1eae2686f03a6e20a49ca2b3a654b3019506d4941708ee3919c339cd093a57d
 2020-04-07 13:08:56 +00:00
drh
2d99f95721 The ALTER TABLE fix of check-in [7e5ad8e0ab7ee91a] is no longer needed due 
to the changes at check-in [4cf8721f5ceb1fda].  But, we keep the defense
in place as an assert() for extra safety.

FossilOrigin-Name: 230556e859536bbadf0daf8133a9a01ef4f03148b3296723e37bad66e3fc3d82
 2020-04-07 01:18:23 +00:00
drh
b3120fdf5b Remove dead code that was added during initial development of RENAME COLUMN 
but never actually served a purpose.

FossilOrigin-Name: c95c4cda4640f05d61b13b4e60494dec07d4483734fc41ffcce73fb5163cbb0d
 2020-04-07 00:54:09 +00:00
drh
4047bdfd2c Performance improvement in sqlite3ResolveExprNameList(). 
FossilOrigin-Name: 7e170e67f24c7cdef7e7ceac4e0b81a75382618e4abe9e604f3d7f6db9dc6396
 2020-04-06 20:35:52 +00:00
drh
d44390c8c5 Performance improvement for column name lookup. 
FossilOrigin-Name: 1e4b6a93987cdfbf829e2ff35ef417c290625f2894ad11949e301af518f1fb44
 2020-04-06 18:16:31 +00:00
dan
85f2c76cf9 When running ALTER TABLE, avoid adding some internally generated tokens to the token map to improve performance on schemas with nested views. 
FossilOrigin-Name: 4cf8721f5ceb1fdaefdc355b3211f75c53c4cdf9d2582ca70fc96777a9b057c2
 2020-04-06 16:37:05 +00:00
drh
47f8ef32a0 Remove a NEVER() that could be true in sqlite3MatchEName(). 
FossilOrigin-Name: 921448f0e24a3753374b32be9d7bf36a9ca5d8522eff9f0b51dc243f08652419
 2020-04-04 11:58:22 +00:00
drh
2e52a9c611 In the push-down optimization, do not substitute columns that have previously 
been identified as being constant by the propagate-constants optimization.
Fix for ticket [51166be0159fd2ce]

FossilOrigin-Name: 70c44811d12f540d4ec1c29dedbe999cf79b82e326a8712ae2fa0725d6bd8a65
 2020-04-04 00:15:54 +00:00
dan
c59b4acf5d Avoid factoring out constant expressions on the LHS of an IN(...) operator, as the IN(...) operation may affect the affinity of these values. 
FossilOrigin-Name: 98d56b4a34fddcbaecd953a045ae0270b4d78c1edf34cc73522fb4e12743af80
 2020-04-03 19:37:14 +00:00
drh
a96a69b7db Add a test case to fuzzdata8.db for the recent Henry Liu bugs. 
FossilOrigin-Name: 42b02454b146ca1b04c0a5321465326435fc5b995f5498d3b1cf69c558a20f95
 2020-04-03 16:11:32 +00:00
drh
eb110d9687 Merge updates from trunk. 
FossilOrigin-Name: 348c40136c8ec20f36ccdd4c8a6d4ec2d8274328b86b25b385813e3aae31ea8b
 2020-04-03 15:48:05 +00:00
drh
c415d91007 In the event of a semantic error in an aggregate query, early-out the 
resetAccumulator() function to prevent problems due to incomplete or
incorrect initialization of the AggInfo object.
Fix for ticket [af4556bb5c285c08].

FossilOrigin-Name: 4a302b42c7bf5e11ddb5522ca999f74aba397d3a7eb91b1844bb02852f772441
 2020-04-03 13:19:03 +00:00
dan
4db7ab53f9 Do not suppress errors when resolving references in an ORDER BY clause belonging to a compound SELECT within a view or trigger within ALTER TABLE. Fix for ticket [a10a14e9b4ba2]. 
FossilOrigin-Name: 684293882c302600e112cf52553c19d84fdb31663d96e5dd7f8ac17dda00a026
 2020-04-03 11:52:59 +00:00
dan
fb99e388ec Fix a case when a pointer might be used after being freed in the ALTER TABLE code. Fix for [4722bdab08cb1]. 
FossilOrigin-Name: d09f8c3621d5f7f8c6d99d7d82bcaa8421855b3f470bea2b26c858106382b906
 2020-04-03 11:20:40 +00:00
drh
49d01abaac Fix a minor problem with EXPLAIN QUERY PLAN for triggers. 
FossilOrigin-Name: 6e11c03f84efa93b218b07e39b6b56b1d872639f39c18498ee54d8cd8364d4f5
 2020-04-02 19:58:31 +00:00
drh
e1cd73f671 Minor changes for better test coverage. 
FossilOrigin-Name: ae3ac297d2deee2a687ae2e9cf98aaf3e1b41196363238101a19d38092aebec6
 2020-04-02 17:21:51 +00:00
drh
91654b2016 Fix an obsolete comment in the parameter binding logic of the CLI. 
No changes to code.

FossilOrigin-Name: c9c735e201d7900d8c2b766463a6c90f547d9844352719dc650734e25e635fad
 2020-04-02 13:21:10 +00:00
drh
c004bd54e3 Fix another harmless compiler warning. 
FossilOrigin-Name: 949eec2530bbe7f48daddfb3022d60ea5d7a43f0f5d120e71c682054feb721db
 2020-04-02 13:08:54 +00:00
drh
e0ef4e2b47 Add a missing #ifdef to avoid a harmless compiler warning. 
FossilOrigin-Name: cc54de354317ebc080d4d1ee25427b31a49c4a75e01cb5d9966f1aaeb2ad098d
 2020-04-02 12:53:17 +00:00
drh
e065a18a4b Merge enhancements from trunk. 
FossilOrigin-Name: d1731385c077f298b0cf654d6183ed40f7e5c07e4e2ab7f69109cf951ce99d9e
 2020-04-02 12:24:08 +00:00
drh
31e3744ecb Simple fixes to PRAGMA analysis_limit. 
FossilOrigin-Name: c20d4fdee21409ebc9c65c9540af8ac48d1f4425499a6674ef9319655c192612
 2020-04-01 01:15:16 +00:00
drh
49a76a8fe5 Add "PRAGMA analysis_limit=N;" to limit the number of rows visited by 
ANALYZE when N is positive.  Positive N also disables collecting stat4.

FossilOrigin-Name: a279b151c1623807774daf4975175c62ea252eefb71f9820ced6773769b392c5
 2020-03-31 20:57:06 +00:00
drh
dcdd707a9c Merge recent enhancements from trunk. 
FossilOrigin-Name: c705ce266ad25af71791035590875f0ea9f2c72826b3eda17f065d2bf091de92
 2020-03-31 18:41:21 +00:00
dan
892edb69c4 Use __atomic_load_n() and __atomic_store_n() for a few more things where they are available. 
FossilOrigin-Name: a49f8ec552bede7da731e0571ccf49de1a30e7be3a5673150436c8b411ba6ffc
 2020-03-30 13:35:05 +00:00
dan
3e42b99175 Fix "GCC_VESRION" typo in wal.c. 
FossilOrigin-Name: fbd9378727141848ba2f5a8eee3076ecbd315e4a87b264c6d890103d56b2e4bc
 2020-03-30 11:17:37 +00:00
drh
218da8c6f1 Enhancements to the SQLITE_ENABLE_SETLK_TIMEOUT compile-time option to avoid 
rare deadlocks on recovery.

FossilOrigin-Name: 06885e9aa4e430d10f4b32105bcf405c65fd6f7b4cd451baf56fb4f12f408963
 2020-03-28 19:02:39 +00:00
drh
b1243a6d9c MSVC does not allow constant expressions as initializers for 
constants with /fp:strict.

FossilOrigin-Name: 076658e5d21d9284448f41312b83a6c3d25394c2bfa088ef6cdfe1dc60277856
 2020-03-28 12:01:25 +00:00
dan
97ccc1bd11 Modifications to the way blocking locks are used in SQLITE_ENABLE_SETLK_TIMEOUT builds so that multiple processes or threads may not deadlock when operating on a single database. 
FossilOrigin-Name: c516027d5fd876b7d0bf566435667d554db29ded30ad6fc1165caa4a93d015a0
 2020-03-27 17:23:17 +00:00
drh
8f78a528d5 Add the tables_used() table-valued function as a variation on bytecode(). 
FossilOrigin-Name: 6283c677d57220e54375a6463f453c6d068e042263558df16cff1055d1b0d3f5
 2020-03-26 16:48:18 +00:00
drh
c5eeacd58b Merge updates from trunk. 
FossilOrigin-Name: d7db09101878102e192ee7a81437e8f6f2e317ddf110852673a2e81d1f80ae0e
 2020-03-26 15:28:46 +00:00
drh
95b395901a Reinstate the optimization that converts "x IN (y)" into "x==y". 
FossilOrigin-Name: 27936e6884e77093533719c7955a17f051cfb359872e51a6d1481152e6256443
 2020-03-26 00:29:50 +00:00
drh
cdbb28154e For the LIKE pattern in the .dump command of the CLI, accept backslash as 
an escape character.

FossilOrigin-Name: 029ceea612f5c7a1420939d8a772eefcc6f9550d24d57b52ae1729ea9d85fae9
 2020-03-25 20:31:45 +00:00
drh
8e9297fb79 Enhance the ".dump" command in the CLI so that it accepts multiple LIKE 
pattern arguments and shows the union of all matching tables.

FossilOrigin-Name: 45fba3d7055f90f67005ca740687f060a2311db40c8f6a161bfea0424e6ebf6d
 2020-03-25 12:50:13 +00:00
drh
7797207554 Optimize the "subprog IS NULL" constraint. 
FossilOrigin-Name: ca8c5f028b9f6f32639c8bc9df5dc02537e21385fcbe7e1ae600c640977ea0d5
 2020-03-24 18:41:58 +00:00
drh
cf08f08d2c Fix a memory leak. 
FossilOrigin-Name: c9f3405eeac8aff171b5d76bae954f3b51b353d16286a3d2af43ef942c212abc
 2020-03-24 17:52:31 +00:00
drh
0518d06117 Provide content for the bytecode.subprog column. 
FossilOrigin-Name: df893364b7cea07ff2b15b80cb294dccaffe701d51452264599b55304a36fa7c
 2020-03-24 13:27:53 +00:00
drh
eeb55d8694 Fix the build so that it works even without SQLITE_ENABLE_EXPLAIN_COMMENTS. 
FossilOrigin-Name: 5896cbf4d0c7854c29c96d2ea2cea4adaedaa027a0fe4a3f0ac4dfbeaabb8dec
 2020-03-23 23:17:38 +00:00
drh
8c5163a697 The bytecode() function now runs and sometimes works, but it untested and 
there are known problems.

FossilOrigin-Name: 6819b86eb2de516c445655a83f9b2ba5ae0bff660cffaf84f1345d9be79b051e
 2020-03-23 20:58:55 +00:00
drh
cb49f5468e Further simplification and modularization of the EXPLAIN logic. 
FossilOrigin-Name: aee1c12f4227cea9e8c6295cee3ec11797422c31b48c9468f176eb52f8261fe8
 2020-03-23 19:14:11 +00:00
drh
356cd76aa8 Begin breaking appear the sqlite3VdbeList() routine into subroutines that 
can be reused by the bytecode() table.

FossilOrigin-Name: 2c4dd79fbd4b9f72634a732abb9ed833cd8c9b05fe1e10af8f23e6d6ec023c7c
 2020-03-23 17:24:46 +00:00
drh
691b5c54b8 Infrastructure for the bytecode() table-valued function. The function itself 
is not yet implemented.

FossilOrigin-Name: 2795f0d633577e0de66b389d9e8e44c55e85975bdc62f1a0b8f93959d19b22bf
 2020-03-23 15:49:22 +00:00
drh
74a07986ce Fix to the recomputation of the colUsed field added by check-in 
[a9bb71ba708ba722].  This fixes ticket [5829597ac43811e3].

FossilOrigin-Name: 5d14a1c4f2fc17de98ad685ad1422cdfda89dfccb00afcaf32ee416b6f84f525
 2020-03-21 23:10:38 +00:00
drh
f7f6dbf501 Enhance the treeview system to show the SrcList_item.colUsed field for 
FROM clause elements.

FossilOrigin-Name: 8a5c539b77aa174c048a504d211c56902075f9b42b654e1f8cc5767739e5fcc9
 2020-03-21 22:03:32 +00:00
dan
7d76fad8eb Simplify some of the code modified by the previous commit. 
FossilOrigin-Name: 04abadb545d1b34bdd74d62becb3bfd83aceee373fd6b4b708d5ad53f41d9464
 2020-03-21 20:58:05 +00:00
dan
31f170f396 Ensure that "main" can always be used to refer to the main database, even if it has been renamed using SQLITE_DBCONFIG_MAINDBNAME. 
FossilOrigin-Name: 682b426f5658254e63dff02c960b557fb33cb3e944fdd14faa0aa9988af7269a
 2020-03-21 15:41:55 +00:00
dan
465c2b8964 Consolidate some code on this branch. 
FossilOrigin-Name: a85c63daa640e02fdfd891a05a1a09e848c9621a5dd6e112338451008623ecbb
 2020-03-21 15:10:40 +00:00
drh
2c3629e1c9 Change a bitfield in sqlite3_stmt into an unsigned character, for slightly 
smaller code and better performance.

FossilOrigin-Name: 0d4d3c642494ad494b4ec937215eaf833158e62e5ae59ed981d6b546220c13b8
 2020-03-21 15:07:27 +00:00
drh
62b6e1d042 Performance optimization in sqlite3VdbeMakeReady(). 
FossilOrigin-Name: aa92f9b95f95d40cc58910da87168a5bd440f71deb072dc651bb15936315786c
 2020-03-21 14:22:27 +00:00
drh
2aee514b4c Recompute the set of columns used for each table when the table is 
involved in query flattening.

FossilOrigin-Name: a9bb71ba708ba72255ba8d18c9856e38ddf53eae2d61c8435149354fb2b2459e
 2020-03-21 00:05:53 +00:00
dan
00bd55e1ae Allow "main" to be used to refer to the main database even after SQLITE_DBCONFIG_MAINDBNAME has been used to assign another alias. 
FossilOrigin-Name: 75c85ca32f9ae4a28fd8f8ff2f7639599413d22af706e9799a0e76cc560d14eb
 2020-03-20 20:54:28 +00:00
dan
ec8e689a20 Avoid an undefined integer overflow in fts3 by detecting data structure corruption earlier. 
FossilOrigin-Name: 86e98ddc19470410ccc6d2cf4ad56ef0bc5a23b7fbe6331b8cae374689f54529
 2020-03-20 20:18:49 +00:00
drh
589c787620 Chagnes the ESCAPE clause on the LIKE operator to overwrite wildcard 
characters, in order ot match the behavior of PosgreSQL.

FossilOrigin-Name: 11e0844f71e8f2d27ce9363fb505e02fd7795c61dae0b3886cf0d8df4484dd97
 2020-03-19 18:13:28 +00:00
drh
f0a2172d1d Fix an integer overflow problem with the dbstat virtual table that comes up 
when trying to analyze a corrupt database.

FossilOrigin-Name: 1d64f4a8af81fe1235fffa54884d8f842a48ff6a33d6172f0cd65bf42fe8b2a1
 2020-03-19 17:27:52 +00:00
drh
91a23dc299 Fix a typo in a comment. No changes to code. 
FossilOrigin-Name: 3a51919ac23ae7312d78905334dc97742b517a7476052a85aa07945d9c77697b
 2020-03-19 15:57:03 +00:00
drh
78a50d7280 Fix the build for when SQLITE_ENABLE_STAT4 is defined. 
FossilOrigin-Name: 8f0a8c2aa45f7cf7339094d83893aeb046b010b5b97bb4dae99ac07a8ebf2fa6
 2020-03-18 15:58:13 +00:00
drh
59a8cb7931 Add the SQLITE_ANALYZE_LIMIT compile-time option (expected to be temporary) 
that sets a threshold at which ANALYZE starts to use approximations during
the analysis process.

FossilOrigin-Name: a773fd4698d474fda5e57bc77ed66a79cf74efee2706f43f6def6f450bfd1fc0
 2020-03-18 14:43:05 +00:00
drh
9f27463684 Provide an estimated row count to stat_init() for STAT1 analysis. 
FossilOrigin-Name: 714419fe85cfdad22979183a94e4569c87740652758ab76b646753cf2b013b54
 2020-03-17 17:11:23 +00:00
drh
e50478d727 Remove the SQLITE_OMIT_BTREECOUNT option. Btree count is required. 
FossilOrigin-Name: a9bfa47aeea27e91611ba913d33e6635d2016e2c2ab78f9b0657f1bd8933e1a8
 2020-03-17 13:41:51 +00:00
drh
dc4a1687b8 Improved bytecode comments for the ANALYZE command. 
FossilOrigin-Name: c38ea4139d87535b789f43eb1e38b2dc4b8312352a721035283e67cf0f3d5067
 2020-03-17 13:07:04 +00:00
drh
9d8c287309 Merge changes from trunk. 
FossilOrigin-Name: 93d710262eb046e2370660b1096ac634373755f92a2e9b1220df3b2bda5f9eeb
 2020-03-17 12:37:27 +00:00
dan
553948e514 Fix handling of window functions in aggregate queries that have no GROUP BY clause. Also remove a faulty assert causing the error reported in [618156e3]. 
FossilOrigin-Name: 38e3dd389d142e520c71139ec84aa3c7722992af28a5f93a7f16e0ea176b74bb
 2020-03-16 18:52:53 +00:00
drh
14c98a4f40 At the end of the right-hand table loop of a LEFT JOIN that uses an IN 
operator in the ON clause, put the OP_IfNoHope operator after the
OP_IfNotOpen operator, not before, to avoid a (harmless) uninitialized
register reference.  Ticket [82b588d342d515d1]

FossilOrigin-Name: 8b437b47266ec2d80d85eafcfdd6949556d6c28d9d67d5f43d89799f0f5b7bd0
 2020-03-16 03:07:53 +00:00
drh
ba25c7e29f Remove stray comment characters at the end of an #ifdef that were 
accidently left in the previous check-in.

FossilOrigin-Name: ea914bec81c49625072fc9d23faa048300f3a0421e069d303b7203edcdfb3743
 2020-03-12 17:54:39 +00:00
drh
576d0a9fd9 Fix comments and strengthen assert() statements associated with the 
OPFLAG_SEEKEQ and BTREE_SEEK_EQ flags.

FossilOrigin-Name: 231749213854756b599b33413b17b35186f17889b0c73f109fa9db726b415558
 2020-03-12 17:28:27 +00:00
drh
e31f00bbef Merge enhancements from trunk. 
FossilOrigin-Name: 4945a66237fa3861bc691d5fbef0d40286b596a0902b4f4c032d1d6528bb1a1b
 2020-03-11 20:03:22 +00:00
drh
2267a7fa87 Do not factor out constant functions into the initialization section of a 
prepared statement, because even though they are constant, they can still
throw exceptions.  Instead, put such functions in an OP_Once block.  This
fixes ticket [3c9eadd2a6ba0aa5] and causes COALESCE() and CASE...END to
be short-circuit.

FossilOrigin-Name: c5f96a085db9688a09793f52ce1ecf033c2e6e2e5873a19fe0fb374b242b317f
 2020-03-11 19:56:26 +00:00
drh
9b258c54e4 Rename sqlite3ExprCodeAtInit() to sqlite3ExprCodeRunJustOnce(). 
Other changes to make the new code cleaner.  Test cases added.

FossilOrigin-Name: d7f18489978fdbbe3ab317485518cac91a75416ccef55898301afdd76d3b415b
 2020-03-11 19:41:49 +00:00
drh
38dfbdae8a Do not factor out constant functions into the initialization section at the 
end of the prepared statement, be cause if they throw an exception, it will
abort the statement even if the function is never called.  Better to put
constant functions in an OP_Once block.

FossilOrigin-Name: 97a18a5cd701848a9660385e31bffe2c397e3cfe57ccdb876f44d08c00d1d39a
 2020-03-11 17:58:27 +00:00
drh
8d5cea6b61 This variant to the fix for ticket [e0c2ad1aa8a9c691] uses fewer CPU cycles. 
FossilOrigin-Name: fb5a8a9edd0a4f979d6c30278d4ddc73c651f56ae989b4e5983fca36887c5ceb
 2020-03-11 02:04:15 +00:00
drh
2e51dc6c9b Merge updates from trunk. 
FossilOrigin-Name: e05f743f619a6b60d0782ee85c73f6866696962954d7cb3eceb03af79c6a6189
 2020-03-10 22:55:51 +00:00
drh
e7375bfa72 Enhanced detection logic for preventing the use of static schema expressions 
by code generating routines.

FossilOrigin-Name: 5f60b527b938c0778e8f725c635ce0dc5ed7a4e01fd6252aa2cdb64da2f625bc
 2020-03-10 19:24:38 +00:00
drh
5cf1b611a2 Further changes to ensure that expressions held in table and index definitions 
do not get passed down into code generator logic where they might be modified.

FossilOrigin-Name: f45f5de000834da5b23cdcf12c3f0e3073287756afe06bdb77b95fb65b250258
 2020-03-10 18:55:41 +00:00
drh
24e399038b Make a copy of the expression that defines a value of a generated column 
before sending it to the code generator routines.

FossilOrigin-Name: 03d201c041c17579e791c73fe6babd60b9f892a84ffd1470851f8eb2857d3990
 2020-03-10 13:35:04 +00:00
drh
0c76e892d9 Apply the correct affinity transformations when pulling values off of the 
sorter index used for GROUP BY.  Ticket [e0c2ad1aa8a9c691]

FossilOrigin-Name: 101f7dea75a203f1f3aa422a607ef701eb0901ba4d5e8d1075cd350454a61956
 2020-03-10 11:50:43 +00:00
drh
088489e8d9 The sqlite3ExprCodeFactorable() routine should make a copy of non-factorable 
expressions, as they might be coming from a DEFAULT or generated column
in a table constraint.

FossilOrigin-Name: a2d6f108c5d07559b125823a04c9cb072c80be80d7913097891a6192c7e1e225
 2020-03-10 02:57:37 +00:00
drh
9d33d9e7ac Background work for experiments trying to enhance ANALYZE so that it runs 
off of samples of the entire index and does not need to read the entire
index.

FossilOrigin-Name: 29d1cc5c3619a88229f18c3c8131228f8a2d151ac3d9203f0c7fc538a996ecec
 2020-03-10 01:24:13 +00:00
drh
afa1ecac9b Cleaner separation of the STAT4-specific logic in the implementation of 
ANALYZE.

FossilOrigin-Name: 3df07e5a9a3781a4cf866fc6ee0e5c6f9cd7ca35ce0a6eb3aa7f5f3502e0ffae
 2020-03-09 18:26:11 +00:00
drh
ccb3781673 Enhancements to the ".import" command of the CLI. 
FossilOrigin-Name: cab1834cfc71f71bfed3c5170a0ba40a39385c3b2c50b7c6b6f09cc830dd1b1e
 2020-03-09 15:39:39 +00:00
pdr
45dc9ca46b Fix typos in RowSet. 
FossilOrigin-Name: 86465c08f4d629a296332a7985937326ac43ea2822c5651bf03862cd79d370fc
 2020-03-09 03:21:33 +00:00
drh
ed5e66881e Fix typos in the Lemon documentation. 
FossilOrigin-Name: 35f1f151ac478d6b46f3685d2565c35108ef74bd33ce96fb65300d3c303b289b
 2020-03-09 01:02:45 +00:00
pdr
db9cb17dc7 Avoid a redundant NULL check 
FossilOrigin-Name: 25dc53f6608dd9b8b4e8d8ee22e194a6d41d15811781752797cb42fc22ee1317
 2020-03-08 13:33:58 +00:00
dan
0ea2d42ac3 Report an error if the main, or any other, database encoding is modified by an external process (perhaps using the backup API) after the db has been opened. 
FossilOrigin-Name: 895bd20b29e223496e1585483c6ce3335ae9050f2e5de4d6b69d0e40df396862
 2020-03-05 18:04:09 +00:00
drh
42a630b1da Change the sqlite3.pDfltColl (the default collating sequence for the 
database connection) so that it is the collating sequence appropriate for
the database encoding, not the UTF8 collating sequence.  This helps to
ensure that the database encoding collation is always used, even for
expressions that do not have an defined collating sequence.
Ticket [1b8d7264567eb6fc].

FossilOrigin-Name: 4a5851893c3d71cc823b6ab5df5e58a852cd322fff26290f1ea05b63d67f564a
 2020-03-05 16:13:24 +00:00
drh
4cf2121e1c When printing the OP_CollSeq opcode for EXPLAIN listings, include the 
text encoding with the name of the collating sequence.

FossilOrigin-Name: eb5c1b77d1c55fc286ff8fccfd61e21cb67aec92d6f93b093b9af5c32165d82b
 2020-03-05 14:19:49 +00:00
drh
f5cfe6f2c4 Fix a false-positive in the debugging logic that attempts to detect the 
use of uninitialized registers inside triggers.
Ticket [c4c56482ced89d90]

FossilOrigin-Name: 0463576b5de0a1ee71530f0e4988fc9cceda79148520bea2c67f1fbc4a99cea9
 2020-03-03 20:48:12 +00:00
drh
d346fe0ab5 Remove an invalid assert() on the debugging logic that checks to ensure that 
register values are not used after they go stale.  Ticket [d165ad781b39d574].

FossilOrigin-Name: bd94d7d052734460904c687756231f8aa243a2252f07f742dd1e437aa940f536
 2020-03-03 20:04:29 +00:00
drh
b3f0d92b91 Improved detection of corruption in the interior nodes of a segment btree 
in FTS3/4.

FossilOrigin-Name: cc99447ac923166104e8a7c75088ed95279f4491b30cfa37dc3ee5e005dd9fac
 2020-03-03 01:16:04 +00:00
drh
39b3bcf8ef Enhance the fuzzcheck test program so that it is able to simulate OOM errors 
in the same way that dbsqlfuzz does.

FossilOrigin-Name: a65c8d4e26b2428ecb8232a4a6a44443aa1701319223397e61a823a5aa1827de
 2020-03-02 16:31:21 +00:00
drh
a2ec2e4843 Fix a faulty assert() statement in the stale-register detection logic. 
Ticket [da5a09be6dabbf42].

FossilOrigin-Name: 219c296cc8cab13fa12b64c297bc4a98d8e21491309d97a031edf89ae77fce75
 2020-03-02 01:50:48 +00:00
drh
7f05d52c4c Ensure that the NULL-scan pass counter is initialized when a ORDER BY NULLS LAST 
is used on the right table of a LEFT JOIN.  Ticket [e12a0ae526bb51c7].

FossilOrigin-Name: 704bb9a39acbee420c1d6ac9eb1466a02dd77d3334b938bfddf235973129b5fe
 2020-03-02 01:16:33 +00:00
dan
0a21ea997d Fix a problem with window functions occuring within sub-selects that are part of an OR term in a WHERE clause of the outer SELECT. 
FossilOrigin-Name: 1e174ed0d29366eb56ad1a0cc8defcb440b426bfd9525aed2f93468248606efc
 2020-02-29 17:19:42 +00:00
drh
4a3a3eb3d7 In the CLI, add the ".oom" command for debugging builds. 
FossilOrigin-Name: 9c3136a722715952d155aae55cbc6d1fb921c6940d8e7d3e32fcba000f6ac1ed
 2020-02-29 15:53:48 +00:00
drh
2826918d10 The RTREE extension behaves has if data columns have type REAL, so we 
should actually declare them as REAL so that automatic indexes handle
them correctly.  Ticket [e63b4d1a65546532]

FossilOrigin-Name: 85a9b6a92fd5805d5936f02d555af395441607b9eb5f4dae63560b5e65663b00
 2020-02-28 16:04:28 +00:00
dan
9e5ecdc172 In sqlite3changeset_apply(), ensure that DELETE and UPDATE changes are always executed on main database tables, not similarly named temp tables, as documented. INSERT statements are already being handled correctly. 
FossilOrigin-Name: f71a13d072398c9fc3556f42d75159cc2d0edc2c42f6c47f64503a7fbbca6e37
 2020-02-27 17:16:45 +00:00
drh
be284e4ece Fix harmless compiler warnings from MSVC. 
FossilOrigin-Name: 951b39ca74c9bd933139e099d5555283278db475f410f202c162e5d1e6aef933
 2020-02-27 16:21:39 +00:00
dan
67e2bb92df Optimization for "SELECT min(x) FROM tbl" where "x" is indexed and NOT NULL. This also allows similar queries on NOT NULL virtual table columns to be optimized. 
FossilOrigin-Name: 59726777934e201d94e99ca693f0fda4ebfb1c7883d0258ce542f63f9924c28c
 2020-02-27 15:07:16 +00:00
drh
47a60d4518 Extra zero terminators on the end of the blank filename returned by 
sqlite3PagerFilename() for an in-memory database.  This helps the result
work better with sqlite3_filename_journal() and similar functions.

FossilOrigin-Name: 63e533d28e87bbb10e0c611de4b79d22aae291b163fe59d1f95dcad9ab3939e4
 2020-02-27 13:54:18 +00:00
drh
df97d43930 Ensure that the filename passed into the xFullPathname method of the VFS is 
acceptable as an argument to sqlite3_uri_parameter().  The interface spec does
not guarantee this, but it has been so historically and some applications
have come to depends on it.

FossilOrigin-Name: bfb09371d452d5d4dacab2ec476880bc729952f44ac0e5de90ea7ba203243c8c
 2020-02-27 11:32:14 +00:00
drh
a8781d9d93 Update the fuzzcheck test module so that it avoids inserting text values 
that contain embedded NULs in the XSQL table.  Fix some legacy entries in
the test/fuzzdata8.db that had embedded NULs.  Add in new dbsqlfuzz cases
that have accumulated over on the dbsqlfuzz project for a while.

FossilOrigin-Name: 47d4240c4a837e829f593bb2aad7563010838f55345e7a0d8e2ea79462aeeb3c
 2020-02-25 20:05:58 +00:00
drh
f575c1cf06 If STAT4 determines that a WHERE clause term that is not used by an index 
has very high probability of being true, then do not use that term to reduce
the estimated output row count.

FossilOrigin-Name: 40739c793b0e98a3bae296d3a1f74944edcdd4cc33c26b417fde4eaf6f14d062
 2020-02-24 17:05:09 +00:00
drh
f06cdde2cf Rework this changes so that instead of setting the WhereTerm.truthProb when 
a term is seen to be of low selectivity, it merely sets a new flag
(the TERM_HIGHTRUTH flag) which causes whereLoopOutputAdjust() to ignore
that term.

FossilOrigin-Name: 4558163b6a525990f0f1b6629dbb76daf49bcaf1ddbaf0c50fe05ce9ee480ff8
 2020-02-24 16:46:08 +00:00
drh
35d3cb80c4 Disable the new analyzeG.test module if not building with STAT4. 
FossilOrigin-Name: 4a9d3005769e0398183b03a3e132e3946b9d1c48073af2e0559d7beeac3245c0
 2020-02-24 13:35:34 +00:00
drh
2ed1b0e753 Merge bugfix from trunk. 
FossilOrigin-Name: b542dee9de843c19664c19df7435c6034d23d0d213804d588ec0ff599082d576
 2020-02-24 13:26:29 +00:00
drh
0990c415f6 Fix a problem with ALTER TABLE for views that have a nested FROM clause. 
Ticket [f50af3e8a565776b].

FossilOrigin-Name: c431b3fd8fd0f6a6974bba3e9366b0430ec003d570e7ce70ceefbcff5fe4b6fa
 2020-02-23 17:34:45 +00:00
drh
cea1951e80 Do not activate the truthProb adjustment mechanism if the truth probability 
is less than the heuristic value, as there could be correlations unknown to
stat4.  Also add additional tracing output to make truthProb adjustments more
visible.

FossilOrigin-Name: c535fea147ce5c6e4aab25d3c85a3f53a7364c5b5ee10fb6d393c5911a02be7e
 2020-02-22 18:27:48 +00:00
dan
5c19346451 Add new test file analyzeG.test, containing a test for the change on this branch. 
FossilOrigin-Name: 243ab1852a2291595527ea1f26e78ad83eda285ae28f876bc1c703677f495cfa
 2020-02-22 17:32:00 +00:00
drh
89efac94fd When stat4 information is available, try to use it to improve the truth 
probability of WHERE clause terms that do not participate in the index.

FossilOrigin-Name: 1babd6ec5d60e2c34aa1c0285ead768a88004218468e97262411973fe3487022
 2020-02-22 16:58:49 +00:00
drh
e8c4f03266 In the OP_Column opcode, if the cursor is marked NullRow (due to being the 
right table of a LEFT JOIN that does not match) and the cursor is the table
cursor for an OR-optimization with a covering index, then do not substitute
the covering index cursor, since the covering index cursor does not have
the NullRow flag set.  Ticket [aa4378693018aa99]

FossilOrigin-Name: f02030b3403d67734bba471a91ad5bfdb03ddf6fdc3ef14808a04495e43b0470
 2020-02-22 13:01:19 +00:00
dan
8a64d62d31 Add test case for previous commit. 
FossilOrigin-Name: 14d14eb537075c6ac77513b1e7305bed8bc01a9034dfb763fd96f76400f2b705
 2020-02-20 14:11:08 +00:00
drh
5f69512404 Early-out on the INTERSECT query processing following an error. 
FossilOrigin-Name: a67cf5b7d37d5b1484be32092635faafd8f76e5881898cd9435517c4b287d663
 2020-02-20 14:08:51 +00:00
drh
1cfee74a28 Fix a potential NULL pointer dereference following OOM. Problem discovered 
by dbsqlfuzz.  Test case in TH3.

FossilOrigin-Name: 5aeb5a2d295e10d5fc1d456b3acaf8ac13c04cb5bb71a8c4571541d366e95887
 2020-02-19 15:39:46 +00:00
drh
4b9e736898 Remove a NEVER() macro and add a test case to cause its argument to be true. 
FossilOrigin-Name: ee034fe916448e953ee7824e5c0db99a36a0ad138ebfb25f751bf84cb80a8fa7
 2020-02-18 23:58:58 +00:00
drh
4defdddc31 Add the new sqlite3_create_filename() and sqlite3_free_filename() interfaces 
for use by Shims.  Use these interfaces inside the multiplexor.

FossilOrigin-Name: 9469f36ac89e4b75d0ab25fefbeff25201992c53141da915dcaa017083cab6db
 2020-02-18 19:49:48 +00:00
drh
0184a256e3 Convert invalid surrogates to 0xfffd when translating UTF. 
FossilOrigin-Name: 7fab1393c2b22b1f3b159b631e06e7e0d3900850ee249c38e4d3cdd0aacf637e
 2020-02-17 23:08:16 +00:00
drh
78d1d225d8 A better (smaller and faster) solution to ticket [4374860b29383380]. 
FossilOrigin-Name: abc473fb8fb999005dc79a360e34f97b3b25429decf1820dd2afa5c19577753d
 2020-02-17 19:25:07 +00:00
drh
bf48ce49f7 Take care when checking the table of a TK_COLUMN expression node to see if the 
table is a virtual table to first ensure that the Expr.y.pTab pointer is not
null due to generated column optimizations.  Ticket [4374860b29383380].

FossilOrigin-Name: 9d0d4ab95dc0c56e053c2924ed322a9ea7b25439e6f74599f706905a1994e454
 2020-02-17 00:12:04 +00:00
drh
ac9e184e1f Avoid an infinite recursion on an illegal recursive definition of an 
fts5vocab table.

FossilOrigin-Name: 109ee07433b274a39954cef62bf67d47bcda960df9bef56127210ebf1c3c104c
 2020-02-16 17:40:35 +00:00
drh
fdfd45aef3 Fix problems in the constant propagation optimization that were introduced 
by check-in [1c3e5c20a9e6f501].  Fix for ticket [1dcb4d44964846ad]

FossilOrigin-Name: c9a8defcef35a1fee6bcbb88252a2d0076dabe8381b0128b2257b5b5cc494e0f
 2020-02-13 22:12:35 +00:00
drh
ab7fdca2ee Disallow the skip-scan optimization in the absence of sqlite_stat1 data. 
FossilOrigin-Name: e0c6b8bdb76fcd4f08c89ff20dce6a33ef3c11752e1e919fec5c4e7d423c4b93
 2020-02-13 14:51:54 +00:00
drh
0ba3621592 Omit O_NOFOLLOW from the open() call when opening /dev/null, since /dev/null 
is a symlink on Solaris, we are told.

FossilOrigin-Name: 0c683c43a62fe25c6cb765e4a31556ec91a7c21af79349b3d7eeb13f73dd1cdc
 2020-02-13 13:45:04 +00:00
drh
77c9b3ccb3 Fix an incorrect assert() statement that was added yesterday. 
Tickets [41c1456a6e61c0e7] and [fb8c538a8f57ae2a].

FossilOrigin-Name: abfb043ebb0c55fdc2be58255bc852b13865d81fa4c2e0dbe8c375810557aafe
 2020-02-13 11:46:47 +00:00
drh
efdba1a8b3 Increase the default upper bound on the number of parameters in a single 
SQL statement to 32766 (from 999).

FossilOrigin-Name: 2def75693a8ae002375aff80db0e6c970c75f75e8b6ba64f2c518712badb0ae8
 2020-02-12 20:50:20 +00:00
dan
41aa442cf4 When determining whether an == or IS constraint in a WHERE clause makes an ORDER BY term redundant, consider the collation sequence used by the == or IS comparison, not the collation sequence of the comparison expression itself. Possible fix for [fb8c538a8f]. 
FossilOrigin-Name: 16aed5d0c63dcdc2054dbb8a4b6b992476640433bf81e19301e6db5a3fc82633
 2020-02-12 11:57:35 +00:00
drh
df9b5cab93 Mark the sha1() extension function as SQLITE_DETERMINISTIC. 
FossilOrigin-Name: 7d8dcfb95cea732e7588e7505bf80a171dd2e371b164c9435c6ac286060df6df
 2020-02-10 19:24:49 +00:00
drh
b6664744c0 Fix the build for when SQLITE_VDBE_COVERAGE is used. 
FossilOrigin-Name: 084381649edf374ccc5664f136055109a31d4c3a19c4ae2ee5275f630507a2a3
 2020-02-10 13:29:10 +00:00
drh
dc4f6fc099 During byte-code generation, strive to avoid jumps that merely jump to the 
following instruction.

FossilOrigin-Name: bcf876e67e75f6709f2b25683a3952bbbb87c672bb9d7af456feebc0ab9f6c31
 2020-02-07 19:44:13 +00:00
drh
b48c0d59fa Simplify the code by removing the unsupported and undocumented 
SQLITE_HAS_CODEC compile-time option

FossilOrigin-Name: 5a877221ce90e7523059353a68650c5fdd28ed032807afc2f10afbfbf864bdfe
 2020-02-07 01:12:53 +00:00
drh
c84ad31851 There is no need to keep track of the number of changed rows or of the 
last-insert-rowid while running VACUUM.

FossilOrigin-Name: a8a7c05b16f6c73ac55c359fbf62cae4a76eb0d105a3c53e9f47cede9fd85916
 2020-02-06 20:46:08 +00:00
drh
0de19cac43 Unroll the comparison loop inside keywordCode() for to avoid unnecessary 
comparisions and thus help that routine run faster.

FossilOrigin-Name: cec5f920f5c2a963f88329a08a443fc04be2dd6f7f2d840be63c0ab1de898f0a
 2020-02-06 15:38:43 +00:00
drh
c879c4eac0 Separate OP_IdxInsert and OP_SorterInsert into completely separate opcodes, 
helping each one to run a little faster.

FossilOrigin-Name: 447d71f0867a11f789eba164ea77470b3ae4953927556304b0861cf690250776
 2020-02-06 13:57:08 +00:00
drh
5bdad79f01 Remove dead code from the sqlite3_filename_database() function. 
FossilOrigin-Name: 1b6185550f2bcfa11513898984f1fc2029e0356e9acdc786c5c4a8006b1da2ba
 2020-02-06 13:09:56 +00:00
dan
fcbc673752 Fix some fts3 problems found by usan. 
FossilOrigin-Name: fb7ccf61bed8d862986eda7096bec3df5947f1d1c88f27e7d9c8acf420f40c50
 2020-02-06 10:55:10 +00:00
drh
2a74006087 Small size reduction and performance improvement in the 
sqlite3VdbeMemFromBtree() interface used to pull content out of the b-tree
and into an sqlite3_value object.

FossilOrigin-Name: ae6dd8d3e921670ee6450453b54245dd71bcfff3fd1bc7fdb7cf4cf9585c3375
 2020-02-05 18:28:17 +00:00
dan
3cdc820544 Enable more detailed log messages in SQLITE_ENABLE_CORRUPT_PGNO builds if database corruption is encountered. 
FossilOrigin-Name: 57c36a293e16bb4d9652874124ee1447bef278e08664bc8dd0070a0ee2ef1173
 2020-02-04 20:01:44 +00:00
drh
92a27f7bf2 Extend the OP_Copy-coalesce optimization fix of check-in [b36126c1889e323c] 
so that it is also correctly disabled by the CASE operator.
Ticket [9d3666754ac37d5a].

FossilOrigin-Name: 29a969d6b1709b80d9cb88b60971e4eb021f7f5f8ee9a619be74b833a78a35ef
 2020-02-04 01:41:44 +00:00
drh
40d1db8d20 Fix a problem with the byte-code decompiler that was inserted by the 
enhancements at [4248980a356f659b]

FossilOrigin-Name: af63e95dcdd6e9741cdddc3698e857e3b8be40048d3036f939f3583e517c4eff
 2020-02-04 00:55:27 +00:00
drh
51f37b2bb8 Cosmetic change to the xfer-optimization to put the OP_RowData opcode closer 
to the corresponding OP_Insert opcode.  This makes it slightly easier to read
and understand the code.

FossilOrigin-Name: 0ea2dbfc9088561d62c3456803cb08d357e4e60f1d21f6ed37315564be4957d3
 2020-02-03 19:56:51 +00:00
drh
081ce2042c Increase the version number to 3.32.0. 
FossilOrigin-Name: 8130bbb4217bd4a4db1f6bf97115a60bee8b29943bed0c7bdf54bba5edbed8fc
 2020-02-03 12:25:18 +00:00