35908b167f
Enhance assert() statements to enforce tighter bounds on the P5 operand of
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the OP_Next and OP_Prev opcodes.
FossilOrigin-Name: 4e0a07fc6f96e6e7726506b7a5ee942461c1381501f253893fa94d76023b634f
2022-08-23 17:51:39 +00:00
376860ba88
Performance enhancement for sqlite3DbFree().
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FossilOrigin-Name: c296a9d958ec360fc8d217363348b4918d665bccb3c4f27503a2dcef7db49052
2022-08-22 15:18:37 +00:00
41ce47c4f4
Add the new internal interface sqlite3DbNNFreeNN(db,ptr) where both the
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db and ptr parameters are guaranteed to be non-NULL. Use this where
appropriate to save more than 2 million CPU cycles on the standard
performance test.
FossilOrigin-Name: e5eaa80e81fdf86f2875a912b880272b8d099b82b08e945a7988c5dd0fe9d6b5
2022-08-22 02:00:26 +00:00
00378fde23
Enhance the enforcement of SQLITE_VTAB_DIRECTONLY so that it applies to
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DML statements within triggers. Do not allow DML stratements against
virtual tables within triggers unless either the virtual table is
SQLITE_VTAB_INNOCUOUS or PRAGMA trusted_schema is ON.
FossilOrigin-Name: 9433ea4070f52135be64569057f439e7bdb4b3f425d87167c9ebda50011210c1
2022-08-20 19:33:04 +00:00
78ed74ef8e
In the ".dump" command of the CLI, if a schema statement ends with an
...
unterminated comment, try to terminate that comment prior to appending
the ";" at the end. [forum:/forumpost/d7be961c5c|Forum post d7be961c5c].
FossilOrigin-Name: 96e112da1ac56767cf49f26132833745b6020d2c60f5c36f86ca84f87ad30c81
2022-08-17 20:18:34 +00:00
16b03c0196
Enhance the "PRAGMA integrity_check" statement so that it verifies the rows of
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a WITHOUT ROWID table are in the correct order.
FossilOrigin-Name: 62f934bff495850d0763e07ffa44a557f066ecba9d039363f32287213cba819f
2022-08-17 18:07:52 +00:00
0348fc722f
Minor code simplification in the code generator for PRAGMA integrity check.
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FossilOrigin-Name: a3b9c7a6c9be5c78a93e5125f16237d2d84b977eca81f527af0198e96435a995
2022-08-17 17:14:36 +00:00
a8771a1736
Change the legacy RC4-based PRNG to use the RFC-7539 chacha20 algorithm.
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FossilOrigin-Name: a0f801151925e882e120f6ab685dcacb9d3268d25b52bc665c5b927bcc7dda1e
2022-08-16 17:18:00 +00:00
cd05aafa56
Fix obsolete comments. Add new comments. Fix non-standard spacing.
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FossilOrigin-Name: a0d224c6a69941dad1f2b35edcc7ddee343b99eae2aeed74043461f3e97ef5b4
2022-08-16 16:57:33 +00:00
534945ad07
Fix an off-by-one error in the ChaCha20 initialization code.
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FossilOrigin-Name: 72e220eed446ea9a02a6ef03e09a01bcb8bbca1f3b32d2e0bf52a17d9722e2f0
2022-08-16 16:40:54 +00:00
2756f806f2
Add assert() statements to verify that the SQLITE_OPEN_EXCLUSIVE flag is always passed to the VFS when opening a temporary file.
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FossilOrigin-Name: e123da49ccae61d591abded52f4721aa10f20d75935c9a3e3fe826a9b8df2317
2022-08-16 10:52:35 +00:00
9113c87ef3
Replace the RC4-based PRNG with one based on ChaCha20. 3x faster.
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FossilOrigin-Name: 084d8776fa95c75440530028171c56547a341c9a952ba2f29bb533b538603c78
2022-08-16 00:04:40 +00:00
9c5e1e40e3
In the documentation emphasize that the use of shared cache is discouraged.
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Fix test cases so that they all work with shared cache disabled.
FossilOrigin-Name: 52c3ae063e133c5f88cad2c3084cf46218f865ac817ab937e3529d2c6a7af300
2022-08-15 12:26:26 +00:00
087f143f87
Add the (undocumented) SQLITE_DEFAULT_UNIX_VFS compile-time option.
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FossilOrigin-Name: 49828bdec5f926cd18a069d39a5db0b1e1f3528a2affcfbaa1cf7b98aca51b3b
2022-08-12 18:46:01 +00:00
f0d12d87fa
Fix another harmless comment typo that causes a typo in the documentation.
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FossilOrigin-Name: bb084adb53386d8e52ca1e818a8322d2ec641b73fd8568cee01cc74c0ee9f265
2022-08-10 18:40:43 +00:00
778d334085
Remove (harmless) duplicate words in comments used to generate parts of the
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documentation. [forum:/forumpost/54abbe9ccd|forum post 54abbe9ccd]
FossilOrigin-Name: b5e4f0db09ff7790862357df3c6fd38a2dcdfc82ff51b9f0d9470517648c844d
2022-08-10 18:33:57 +00:00
626bcc88dd
Allow the name of an index to collide with a table in a different schema.
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FossilOrigin-Name: f963c2523872b59b8a7a14971f703f2eb0d021501b288597a958f6596885d0de
2022-08-09 16:13:21 +00:00
c8e9f6818b
Omit the (undocumented) SQLITE_PCACHE_SEPARATE_HEADER compile-time option.
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FossilOrigin-Name: 60947da687d525e72e62bcddcdf4c5c819818855074cc318c9ee656e83897aef
2022-08-09 14:28:54 +00:00
26e817f69b
Avoid trying to cast an over-sized floating point value into an integer.
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FossilOrigin-Name: 3518cd7cb1feeefc3963da72c2d258d81d8914f1e1f427da28a00b6228cf126c
2022-08-08 16:25:13 +00:00
5e10d892d6
Remove an unreachable branch in the numericType() helper routine.
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FossilOrigin-Name: a99cc008e46ab1a4fdbe2fa87202d026a10c57be55e3e9fedd935795ed6dc694
2022-08-08 13:04:08 +00:00
a3a4da0922
Do not attempt to convert an oversized floating point value into an integer.
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FossilOrigin-Name: 6c4fc8385ee22516e0b87fb647327ee7d1a564040ebe2a4d66fc999ef2908df2
2022-08-08 12:19:13 +00:00
8c3cc71a5a
Fix a rounding error caused by scalar->logarithm->scalar conversion when using stat4 data to estimate some range scans.
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FossilOrigin-Name: 86e30d7c4bb1cebe25b66686d6d1ee170c1a88e5a6c1bed6652ebbb024d62062
2022-08-06 15:28:37 +00:00
e2848932a5
Fix harmless compiler warning seen with MSVC.
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FossilOrigin-Name: e36217f2536d89f7a15a879fe3ead32307909c71ced42e1ae7b35f43d4744a80
2022-08-05 05:30:07 +00:00
bffd5c1ece
Fix a problem with the query optimizer for LIMIT/OFFSET queries when
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underlying query is a UNION ALL and both arms of the UNION ALL are
subqueries with an ORDER BY clause. This bug was reported at
[forum:/forumpost/6b5e9188f0657616|forum post 6b5e9188f0657616]. The
problem was introduced in 2015 (SQLite version 3.9.0) by check-in
[4b631364354068af]. See also ticket [b65cb2c8d91f6685].
FossilOrigin-Name: 6c806f64bbc9e98891bad0868575ee2ec5d0951ceb0c71d3ed417b45d5f27561
2022-08-04 17:15:00 +00:00
e24a6f58ae
Fix a typo on a comment used to generate bytecode documentation.
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FossilOrigin-Name: 64348d0b665f61c3a89f51341f23ca87f939dd9e306dc58c2004e46ab04e696e
2022-08-04 14:02:35 +00:00
3cf46ee508
Performance optimization to the math opcodes of the bytecode engine.
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FossilOrigin-Name: 597347d9c39f6ed068ac942a8c9853b1b745fce1eb5e9dd30f6c1cb312b36f53
2022-08-03 19:53:54 +00:00
403f00219b
Small performance increase on the binding interfaces.
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FossilOrigin-Name: aab24c37fb444804fb91177b4b522909ef1bb85383444d97d82a758f919047d2
2022-08-03 19:37:25 +00:00
3a17e2e5cf
Improvement on the previous check-in.
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FossilOrigin-Name: c1ab0ea2959259cbd29f624bfd5e7366035f2dbcaab72c0bf55723c0919b7a79
2022-08-03 17:26:32 +00:00
b5a6f33e50
For an IN operator used with a RIGHT JOIN, use the number of terms in the
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vector, not the number of equality terms, to size the column map.
dbsqlfuzz 14cfdad6ca45e607163f54049ddf5065183dc657.
FossilOrigin-Name: b184c8d9222da6b420b5d7c439bbe4b737d92ffa27f5e933f4e1a9c8117b0ee5
2022-08-03 15:58:44 +00:00
3b01dd0f5d
Restore a VDBE coverage macro that is mistakenly deleted for
...
check-in [92ac01d41d46ab73].
FossilOrigin-Name: 01de7ec44fb1e8e6f847eaef433216b3163a44a8789451718e1c419ef840ddfb
2022-07-26 19:10:13 +00:00
b4d7f1eb88
Fix another problem related to aggregate query LEFT JOIN flattening.
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FossilOrigin-Name: 8e12c6f59bcb67be4ff131feecc5af68f4bb0afbcced2e2f7e73289aaf95d99d
2022-07-26 18:43:45 +00:00
1dd1303600
Omit a unused variable initialization in order to suppress a harmless compiler
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warning.
FossilOrigin-Name: 2d703c5e941cac72efc21d58e1e35c446b338b2927a42f587ab788826fd7f3f1
2022-07-26 15:41:34 +00:00
4b1b65ca2e
Make sure IF_NULL_ROW expressions receive a separate slot in the sorter used
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to implement GROUP BY.
FossilOrigin-Name: 2bda4fca06ab6be5ad02377a7d1fd9fb9586e3181f1052e4b4937958bdd45efe
2022-07-26 15:32:02 +00:00
f4c291275b
Improved AggInfo.aCol debugging output, intended to debug a problem with
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LEFT JOIN flattening into an aggregate query with GROUP BY.
FossilOrigin-Name: e717e029bde4ee68b6ea77a68721c02ddb6e296f1d310a368137ea3c4164f68c
2022-07-26 14:37:04 +00:00
e6710e83fc
Add a OOM term to a single assert() statement.
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FossilOrigin-Name: 217fc3ebd423e050508d6af97e0664f301824ef9a997ed2d302c006a41227917
2022-07-26 10:16:25 +00:00
3c8fb6fb84
Performance optimization: avoid unnecessary calls to computeLimitRegisters().
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FossilOrigin-Name: f48bd8f85d86fd93329dda7ba57f468854a732b89e4126e9c5beec3495d24b31
2022-07-26 01:20:18 +00:00
fe888bcf11
Fix an assert() that was made out-of-date by [b52393ac28debe98].
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FossilOrigin-Name: db8230e80ed894fc2801cdbb53c2cd9de00192d7f4d8328c29cc214e2e0adde9
2022-07-25 23:34:14 +00:00
509a6303d1
Performance optimization by only invoking sqlite3FkCheck() when it is actually
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needed.
FossilOrigin-Name: 98b0e830bc7effa3c9cbb77aebe7c128afc3b210af336b7516108d6435705ba0
2022-07-25 23:01:41 +00:00
ef69d2b277
Performance optimization in sqlite3ViewGetColumnNames().
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FossilOrigin-Name: 390717e68800af9b71acd635cf6cb123f9a591276df511f11462b42960f9a70c
2022-07-25 22:31:04 +00:00
f89812fe52
Fix a harmless compiler warning.
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FossilOrigin-Name: 9aba7417c60b30b44c051580f0f997a4d2fc86bc811b532d175305ad4c181fc6
2022-07-25 22:02:35 +00:00
2d2e528e1f
In-line a call to sqlite3ExprCode() in insert.c, for a size reduction and
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performance increase.
FossilOrigin-Name: 35066b1446228bf030795e7868509c7b54a5681984ac28bf43123f8fac2e361e
2022-07-25 21:37:13 +00:00
47e2fe3ce7
Performance optimization in computing the Expr.nHeight field.
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FossilOrigin-Name: 1798ce97c8763d75315e1716d10f6c5be301042c174f41ee8c1fb8d9db99d52b
2022-07-25 20:21:57 +00:00
058e99502a
Small performance increase and size reduction by splitting out the
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sqlite3VdbeGetLastOp() from sqlite3VdbeGetOp().
FossilOrigin-Name: 92ac01d41d46ab73e189b1e5596ea63e5edb5b15639c5d7bdb981b95366c069b
2022-07-25 19:05:24 +00:00
ee37302095
Allow subqueries on the right-hand side of a LEFT JOIN to be flattened even
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if they contain a GROUP BY clause.
FossilOrigin-Name: 816da9a893ae97a21463562479edb419a8b511ae731d86eccee3fa6e3e7dc96e
2022-07-25 15:54:23 +00:00
6b6d6c6bd2
TK_IF_NULL_ROW expressions must be accumulated in the same way as TK_COLUMN
...
expressions in an aggregate query. Proposed fix for the problem identifyed by
dbsqlfuzz 8e17857db2c5a9294c975123ac807156a6559f13.
FossilOrigin-Name: 40d08807209638aad728be2cedbc904e342e76c8e486c364bd571b55dd2e1e87
2022-07-25 14:05:11 +00:00
7bace9e9bb
Simplifications to sqlite3FinishCoding() for a small size reduction and
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performance increase.
FossilOrigin-Name: a995614b9aedf4492e6d7b777293770f268837f8246e1678ef0523738c8a8339
2022-07-23 12:51:48 +00:00
3dedb87bd7
Remove a branch that is no longer reachable due to the previous check-in.
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FossilOrigin-Name: 8b4d1b9317624f443fe526858bfe3da5281ba83de1828c62935f48b3e7cf2a88
2022-07-23 00:53:48 +00:00
ee6b80c3b5
Use sqlite3ParserAddCleanup() rather than pParse->pConstExpr to implement
...
sqlite3ExprDeferredDelete(). This is a better solution than check-in
[c538d07535092722].
FossilOrigin-Name: 2a6f6971fa010219323b976ff53b2606e39fb43fd36c394837c3a8528bf3c425
2022-07-23 00:44:44 +00:00
825fa17b1f
Omit the EP_MemToken flag that was made obsolete by [e1f1cfe7f4387b60], for
...
a size reduction and performance increase.
FossilOrigin-Name: 28934a9d92d5e5ac862a0dc7169f071f39047f98dc79441db697cf353a4b9433
2022-07-22 19:28:04 +00:00
034d111807
In a TK_BLOB Expr node, the Expr.zToken might not be a well-formed
...
BLOB literal if there has been a prior OOM.
dbsqlfuzz 23871e5805d6c45b392f9b7aa1e8a2b98f3c27cd.
FossilOrigin-Name: c538d075350927222ab0a6598b844f7b15153c5dc008d71b921a2b73c4f4a7a4
2022-07-22 18:25:04 +00:00
drh