bf7909734a
AggInfo objects might be referenced even after the sqlite3Select() function
...
that created them has exited. So AggInfo cannot be a stack variable. And it
must not be freed until the Parse object is destroyed.
FossilOrigin-Name: 3c840b4df306e2db1da08673e9ede973b4cb6d2b3f9eeeab5835e39452ee3056
2020-06-07 20:18:07 +00:00
896366282d
Alternative fix to ticket [c8d3b9f0a750a529]: Prior to deleting or modifying
...
an Expr not that is referenced by an AggInfo, modify the AggInfo to get its
own copy of the original Expr.
FossilOrigin-Name: 7682d8a768fbccfe0cc956e9f6481637146e1ab9763b248ff11052761ce32e32
2020-06-07 17:33:18 +00:00
d3bf766127
Attempt to work around a false-positive warning in the CGo compiler.
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FossilOrigin-Name: d4bf60f464789935dc193ea99bf730c8fade448c7dca13eb3ce297965980f36e
2020-05-25 01:31:09 +00:00
e40cc16b47
Move some utility Walker callbacks into the walker.c source file, as they
...
seem to belong there better.
FossilOrigin-Name: dac438236f7c5419d4e7e094e8b3f19f83cd3b1a18bc8acb14aee90d4514fa3c
2020-05-24 03:01:36 +00:00
ca74fbf6f1
Improvements to parse-tree tracing logic. No changes in deliverable code.
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FossilOrigin-Name: f7e5a68a7ebbb97a5beb050a75b3b4cf2fd6adc54653da993a8950fb3a5799f7
2020-05-24 02:05:04 +00:00
98aa1d735e
Fix the count-optimization so that it honors the NOT INDEXED clause.
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FossilOrigin-Name: 0d23a0b209900f4d7c6c13f75d4364f19afc23db72f9cfdb11e05b81502e8040
2020-05-08 18:22:00 +00:00
e754830eae
Merge recent trunk enhancements.
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FossilOrigin-Name: 2100b2c8f339e9778723fa0c91e479bab8675cf6fbea1664b6af49f40db6d27b
2020-05-01 15:04:13 +00:00
07f9e8f4f3
Ensure affinity is not discarded from a view column if the view appears on the rhs of a LEFT JOIN. Fix for [45f4bf4e].
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FossilOrigin-Name: ac31edd3eeafcef46164a4506bbc32c711bb7cd78378aeaa4c9bb12524ac5ea1
2020-04-25 15:01:53 +00:00
ad996da0f6
Merge trunk enhancements into the approximate-analyze branch.
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FossilOrigin-Name: 17901ea6a1951b8c55671408841901c6660e3f8099378204f080b171a684d718
2020-04-09 15:01:09 +00:00
d44390c8c5
Performance improvement for column name lookup.
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FossilOrigin-Name: 1e4b6a93987cdfbf829e2ff35ef417c290625f2894ad11949e301af518f1fb44
2020-04-06 18:16:31 +00:00
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
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
dcdd707a9c
Merge recent enhancements from trunk.
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FossilOrigin-Name: c705ce266ad25af71791035590875f0ea9f2c72826b3eda17f065d2bf091de92
2020-03-31 18:41:21 +00:00
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
2aee514b4c
Recompute the set of columns used for each table when the table is
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involved in query flattening.
FossilOrigin-Name: a9bb71ba708ba72255ba8d18c9856e38ddf53eae2d61c8435149354fb2b2459e
2020-03-21 00:05:53 +00:00
e50478d727
Remove the SQLITE_OMIT_BTREECOUNT option. Btree count is required.
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FossilOrigin-Name: a9bfa47aeea27e91611ba913d33e6635d2016e2c2ab78f9b0657f1bd8933e1a8
2020-03-17 13:41:51 +00:00
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].
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FossilOrigin-Name: 38e3dd389d142e520c71139ec84aa3c7722992af28a5f93a7f16e0ea176b74bb
2020-03-16 18:52:53 +00:00
be284e4ece
Fix harmless compiler warnings from MSVC.
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FossilOrigin-Name: 951b39ca74c9bd933139e099d5555283278db475f410f202c162e5d1e6aef933
2020-02-27 16:21:39 +00:00
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.
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FossilOrigin-Name: 59726777934e201d94e99ca693f0fda4ebfb1c7883d0258ce542f63f9924c28c
2020-02-27 15:07:16 +00:00
0990c415f6
Fix a problem with ALTER TABLE for views that have a nested FROM clause.
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Ticket [f50af3e8a565776b].
FossilOrigin-Name: c431b3fd8fd0f6a6974bba3e9366b0430ec003d570e7ce70ceefbcff5fe4b6fa
2020-02-23 17:34:45 +00:00
5f69512404
Early-out on the INTERSECT query processing following an error.
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FossilOrigin-Name: a67cf5b7d37d5b1484be32092635faafd8f76e5881898cd9435517c4b287d663
2020-02-20 14:08:51 +00:00
fdfd45aef3
Fix problems in the constant propagation optimization that were introduced
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by check-in [1c3e5c20a9e6f501]. Fix for ticket [1dcb4d44964846ad]
FossilOrigin-Name: c9a8defcef35a1fee6bcbb88252a2d0076dabe8381b0128b2257b5b5cc494e0f
2020-02-13 22:12:35 +00:00
dc4f6fc099
During byte-code generation, strive to avoid jumps that merely jump to the
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following instruction.
FossilOrigin-Name: bcf876e67e75f6709f2b25683a3952bbbb87c672bb9d7af456feebc0ab9f6c31
2020-02-07 19:44:13 +00:00
8c812f98a3
Fix a problem with using views in SQLITE_OMIT_VIRTUAL_TABLE builds. Also some test case fixes required for the same builds.
...
FossilOrigin-Name: 934ee8bdb481a5cbd3d9c5f53028073129d3bca4fee14fe4a49bbf9c0c9d74f7
2020-01-21 16:23:17 +00:00
70a32703ac
Fix an assert() that could fail in SQLITE_MUTATION_TEST builds following an error in a query that uses CTEs.
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FossilOrigin-Name: c7e29458a73bbe73a1429477d0c01d5a7b870ab75d3cb08a703be21714e439b7
2020-01-21 14:42:48 +00:00
ef9f719d0b
Fix #ifdefs so it compiles cleanly with all SQLITE_OMIT compile-time options.
...
Update compile-time option testing.
FossilOrigin-Name: 7584e4b649d57767aac3906da6b06549d5b772aaa69f469c623ae5da834d54d5
2020-01-17 19:14:08 +00:00
be0330e853
New testcase() macros in select.c, for coverage of the change from two
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check-ins ago.
FossilOrigin-Name: 52206488f315803df73f964774270ef4783923407a2567936f56b0a1a88b4400
2020-01-16 17:53:24 +00:00
39df24a3f0
Do not allow the constant-propagation optimization to apple to ON/USING clause
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terms as it does not help and it might cause downstream problems.
FossilOrigin-Name: 1bc783da63d58b05c690468b569cb2787846357b63c1100d11777666c5787bf4
2020-01-16 16:12:07 +00:00
bebce86cde
Merge in the untrusted-schema enhancements.
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See [/doc/87aea3ab1cdda453/doc/trusted-schema.md|doc/trusted-schema.md]
for details.
FossilOrigin-Name: 5720924cb07766cd54fb042da58f4b4acf12b60029fba86a23a606ad0d0f7c68
2020-01-09 20:44:37 +00:00
7be5e3dd4c
Fix a harmless compiler warning.
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FossilOrigin-Name: edbf911fdeda14bd63cd752f6237896400eb5a65ef486abe7b91433621d21b5c
2020-01-09 20:33:13 +00:00
32266a1072
Simplified error message for the unsafe use of a virtual table.
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FossilOrigin-Name: d662129a601e05e8fca5717a890b5bc920b80a750d061f3c2494788d32b917a5
2020-01-09 13:08:28 +00:00
19ca76af38
Merge recent changes from trunk.
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FossilOrigin-Name: 5962921fceaf2ec645379a5f1d18e2c2c13abbf92cf64606caee69f45a21c500
2020-01-08 13:08:52 +00:00
f8f76d672b
Simplification of the logic in the constant-propagation optimization.
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FossilOrigin-Name: 1c3e5c20a9e6f501befa2bf6241a1b5190872bd83b765dac67065d252d04ea4f
2020-01-08 04:36:01 +00:00
c9301e6e7c
Fix the constant propagation optimization so that it does not try to
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propagate constant expressions that have affinity. Ticket [82ac75ba0093e5dc]
FossilOrigin-Name: 6db1c3498f6bfa01bb460e62b802b63ec4bf43577a17a94e1e2fa0ecc1e64960
2020-01-08 01:43:47 +00:00
97bffe674f
Fix a misworded comment. No code changes.
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FossilOrigin-Name: ee0bc7ede0fbf3e54bb934c0d580c62d7393c984cbc374ece6d57fe9211dac26
2020-01-08 00:39:37 +00:00
3f68142b82
Enforce SQLITE_VTABRISK restrictions.
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FossilOrigin-Name: 3d87ff312e617a26846d482b423163cad9c222513f33e128f0fe348dda27c7c9
2020-01-07 18:10:56 +00:00
9e10f9ab05
Ensure the SF_Aggregate flag on a SELECT statement is set if a DISTINCT is transformed to a GROUP BY. Ticket [9c944882].
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FossilOrigin-Name: 1409758f72c0206cc48f9f7e789382472949523b7056ea46f8dcb93fd3ea60c6
2020-01-06 17:06:12 +00:00
aa328b6ab1
Ensure that when a Select object is reset a new, empty, SrcList is allocated.
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FossilOrigin-Name: 4889cbf898d7ec54f061b21b6d3621b22fc482cbeaa7115d40995a4cc30e41db
2020-01-03 13:55:14 +00:00
0cbec59c8b
When generating the name of a view (or common table expression) because the
...
SQL does not specify a name, avoid the names "true" and "false" which might
be confused for the boolean literals of the same name, leading to an
inconsistent abstract syntax tree.
FossilOrigin-Name: ff9492d3ff733c222ea67f23d478df1547641b5e2e6dd870b0b29e25c13f3739
2020-01-03 02:20:37 +00:00
378ca1eab3
Merge the latest enhancements from trunk.
...
FossilOrigin-Name: bd57e6d923d3b04f0a07aaf18bf389d2b2b7efc7c57e8cb37e6ef910662d8397
2020-01-02 21:41:59 +00:00
4ea562ee70
Ensure that when code for a scalar SELECT featuring window functions is generated more than once by the planner, separate ephemeral tables are opened for each instance.
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FossilOrigin-Name: ce1417325273aba866767349b55d9bbfb61a08e716bebda2122918a9657ee38c
2020-01-01 20:17:15 +00:00
5f6a2ed7f2
Merge recent enhancements from trunk.
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FossilOrigin-Name: 39d55579376906f212271ce9b2d367e3ad029fb173f22c7253312b467970208a
2019-12-31 14:49:10 +00:00
8d95ed789e
Fix a typo in a comment. No changes to code.
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FossilOrigin-Name: d4813a8d813f234e819f8ebefbd3ff96d3d69593cc7d716cf0ad6c1a126da827
2019-12-30 20:42:17 +00:00
9d41af23a4
Do not use HIDDEN columns for NATURAL joins. Fix for [7c0e06b16].
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FossilOrigin-Name: ab09ef427181130be09a087b7e572ad4cfb6b3e1b459769ee5ebf046b3ead682
2019-12-30 14:32:27 +00:00
997d7434b7
Do not attempt to flatten compound sub-queries in a FROM clause into the parent if any component of the sub-query uses a window function.
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FossilOrigin-Name: eeb76f621de2f930a548db0fbb9fe25b4479b73581826b8dfa2e63cd1f1ab783
2019-12-28 18:25:51 +00:00
a6c1a71cde
Do not attempt to unwind the WITH stack in the Parse object following an error. This fixes a separate case to [de6e6d68].
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FossilOrigin-Name: d29edef93451cc67a5d69c1cce1b1832d9ca8fff1f600afdd51338b74d077b92
2019-12-27 20:54:42 +00:00
aaa5ba0609
Fix an incorrect assert() added by check-in [fa58aad48a788802].
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Problem found by dbsqlfuzz.
FossilOrigin-Name: a17b29f08c888301911c35096899f10d24192c8ecec467cddde5401b6bd1903f
2019-12-26 00:53:43 +00:00
a9ebfe2030
When the sqlite3WindowRewrite() routine detects and error, have it convert
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the SELECT statement into just "SELECT null" so that it does not leave the
parse tree in a goofy state that can cause problems with subsequent code
before the stack has a chance to unwind and report the error.
Ticket [d87336c81c7d0873]
FossilOrigin-Name: fa58aad48a788802b13a819e49f9b8787f713bbe395c46c7295e821c52c81738
2019-12-25 23:54:21 +00:00
8428b3b437
Continuation of [e2bddcd4c55ba3cb]: Add another spot where it is necessary
...
to abort early due to prior errors in sqlite3WindowRewrite().
FossilOrigin-Name: cba2a2a44cdf138a629109bb0ad088ed4ef67fc66bed3e0373554681a39615d2
2019-12-19 22:08:19 +00:00
396afe6f6a
Continue to back away from the LEFT JOIN optimization of check-in [41c27bc0ff1d3135]
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by disallowing query flattening if the outer query is DISTINCT. Without this fix,
if an index scan is run on the table within the view on the right-hand side of the
LEFT JOIN, stale result registers might be accessed yielding incorrect results,
and/or an OP_IfNullRow opcode might be invoked on the un-opened table, resulting
in a NULL-pointer dereference. This problem was found by the Yongheng and Rui fuzzer.
FossilOrigin-Name: 862974312edf00e9d1068115d1a39b7235b7db68b6d86b81d38a12f025a4748e
2019-12-18 20:51:58 +00:00
drh