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27,211 Commits 1,607 Branches 185 Tags
8dd4697e48c04a405c9c8da4a68b948e45b1f159
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1569 Commits

Author SHA1 Message Date
dan
07ca7d610b Make it an error to repeat the target object/alias of an UPDATE statement in its FROM clause. 
FossilOrigin-Name: d90a37e930c66afe95165955ae47efde08f52c8ce16c4fb239da0233335db050
 2020-07-17 16:31:37 +00:00
dan
42d7a77b61 Update this branch with changes from trunk. 
FossilOrigin-Name: 53b8b507a10364f5d580655d89c950a5f14c2a8114625fd8749d77f289413b22
 2020-07-15 11:00:29 +00:00
drh
19543b9b7b Now appears to work. All legacy tests pass. Need to add new tests, however. 
FossilOrigin-Name: 81e6450980ee745686aee5e2b84672d3c8404a041c82c658aa562013294b8628
 2020-07-14 22:20:26 +00:00
drh
9d575e46f3 Merge latest changes from trunk. This branch still does not work. 
FossilOrigin-Name: 6144387238c03b8b33ae98d624f7ffa44a7829d3e0d4a0a01b5528e71ab4f08b
 2020-07-14 01:03:05 +00:00
dan
a7f82d9f47 Merge latest trunk changes with this branch. 
FossilOrigin-Name: 5ee3c27e20d12a126fb773b428bb864102b949a5b26a8d5c523753dcedf4be10
 2020-07-13 18:04:27 +00:00
drh
6af305de1e Remove unnecessary code from the window functions implementation. 
FossilOrigin-Name: 1e87da9c93309d1d69b1e0ab65c615b9ff9c1c6813ad0c7b90d2495be4ba0adc
 2020-07-10 21:43:53 +00:00
drh
413b94af89 An attempt to get the Min/Max optimization working with IN constraints. 
Not currently working.

FossilOrigin-Name: 4a64c16fb7a07431e534fb9bbcf778646be8a1c718d5d10873fbccb0c867aac7
 2020-07-10 19:09:40 +00:00
dan
fa4b0d4453 Fix a problem with VM code generated for some aggregate SELECT statements that feature min()/max() aggregates both with and without FILTER clauses. 
FossilOrigin-Name: 2094da753feb847254473b148d11e535c44dbae9b17454f1a4f8f7e90aefba3f
 2020-07-01 14:07:45 +00:00
drh
64185e31fc Do not run resetAccumulator() after a malloc failure. 
FossilOrigin-Name: 1b426603f05033bcee0331c6f664cd5ed2ebf8f5d4cde8c6673c7a699ff53bb1
 2020-06-29 16:30:10 +00:00
drh
067b92ba00 Extend the refactoring into extensions. Clean up stray newlines. 
FossilOrigin-Name: 7a876209a678a34c198b54ceef9e3c041f128a14dc73357f6a57cadadaa6cf7b
 2020-06-19 15:24:12 +00:00
drh
b7cbf5c1b2 Fix a defect in the query-flattener optimization identified by 
ticket [8f157e8010b22af0].

FossilOrigin-Name: 10fa79d00f8091e5748c245f4cae5b5f499a5f8db20da741c130e05a21ede443
 2020-06-15 13:51:34 +00:00
dan
cd653a3266 Avoid deleting expression nodes in the flattener code, as they may be referenced by AggInfo objects further up the stack. 
FossilOrigin-Name: cc1fffdeddf422404170fa163ab80372ae58b444d7012b2c164021b221709b3e
 2020-06-13 21:24:40 +00:00
drh
b5aaee5e31 Add a new assert() to the SELECT processing. 
FossilOrigin-Name: 98cea4a32ba558c137d71a5e373a6803d764d34c5640907371dcf6468ffb2e64
 2020-06-11 16:04:10 +00:00
dan
46daa99b8d Avoid rewriting compound SELECT statements that use a different collation sequence for ORDER BY and record processing a second time if they contain window functions. Fix for [b706351c]. 
FossilOrigin-Name: 32a88bdd4be5acdc1b80856bf6e32724dc3a467d5050bec0fe1a3dfedcc06f34
 2020-06-11 15:53:54 +00:00
drh
9216de8a23 Provide the ability to use the SELECTTRACE() debugging macro outside of the 
select.c source file.  Use this to add a new SELECTTRACE() entry in
window.c for improved tracing of window-function parse-tree rewriting.

FossilOrigin-Name: 30c6d895b573d5f2a53487b3b7a0d20be7e382c7a0bc87336bd43fbd2fa89bf4
 2020-06-11 00:57:09 +00:00
dan
f65e379919 Ensure that the "push-down" optimization does not push constraints down into compound queries if any of the component queries uses window functions. 
FossilOrigin-Name: 094dcfe779613301521e8bb990432df187b3686add75a3420b4a193f02f3467f
 2020-06-10 10:58:15 +00:00
drh
7b4c4d4a67 Disable AggInfo consistency checks when unwinding after an OOM. 
FossilOrigin-Name: 65179814aa0ae5927bae97c10ef20f290535399b889d96d5b88931f62635f212
 2020-06-10 03:07:26 +00:00
drh
81185a5138 Give the expression pointer fields of AggInfo distinctive names in order to 
simplify tracking of all their uses.

FossilOrigin-Name: a53bdd311c4154fd5e1131efbb9665362f79db5a35ce9f7b1547f74b8ee2d8ba
 2020-06-09 13:38:12 +00:00
drh
e26d428a59 Improved tree-view debugging output for aggregate functions. 
FossilOrigin-Name: b5711b4eead10ef4b0b61f2e2c54768d215a4105f6d47d2ea78991b6e53a6831
 2020-06-09 11:59:15 +00:00
drh
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
drh
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
drh
d3bf766127 Attempt to work around a false-positive warning in the CGo compiler. 
FossilOrigin-Name: d4bf60f464789935dc193ea99bf730c8fade448c7dca13eb3ce297965980f36e
 2020-05-25 01:31:09 +00:00
drh
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
drh
ca74fbf6f1 Improvements to parse-tree tracing logic. No changes in deliverable code. 
FossilOrigin-Name: f7e5a68a7ebbb97a5beb050a75b3b4cf2fd6adc54653da993a8950fb3a5799f7
 2020-05-24 02:05:04 +00:00
drh
98aa1d735e Fix the count-optimization so that it honors the NOT INDEXED clause. 
FossilOrigin-Name: 0d23a0b209900f4d7c6c13f75d4364f19afc23db72f9cfdb11e05b81502e8040
 2020-05-08 18:22:00 +00:00
drh
e754830eae Merge recent trunk enhancements. 
FossilOrigin-Name: 2100b2c8f339e9778723fa0c91e479bab8675cf6fbea1664b6af49f40db6d27b
 2020-05-01 15:04:13 +00:00
dan
f2972b6083 Fix problems with using LIMIT and FROM clauses as part of single UPDATE statement. 
FossilOrigin-Name: b717dc3c5fafb9b86a141e7ecffc030fd9b36aa57a0b3e5200d64ad23a0aa13d
 2020-04-29 20:11:01 +00:00
dan
9ed322d6c3 Fix various bugs in new feature on this branch. 
FossilOrigin-Name: 823ba94e29dece1687e28711e503a1f56d392c306b0cbc0a20548180834530d1
 2020-04-29 17:41:29 +00:00
dan
69887c99d4 Allow a FROM clause in UPDATE statements. 
FossilOrigin-Name: f353a1a613bb7ad8cedcda377a7fe6fd05ee03b1f50665b00b84a868a71c5bec
 2020-04-27 20:55:33 +00:00
dan
07f9e8f4f3 Ensure affinity is not discarded from a view column if the view appears on the rhs of a LEFT JOIN. Fix for [45f4bf4e]. 
FossilOrigin-Name: ac31edd3eeafcef46164a4506bbc32c711bb7cd78378aeaa4c9bb12524ac5ea1
 2020-04-25 15:01:53 +00:00
drh
ad996da0f6 Merge trunk enhancements into the approximate-analyze branch. 
FossilOrigin-Name: 17901ea6a1951b8c55671408841901c6660e3f8099378204f080b171a684d718
 2020-04-09 15:01:09 +00:00
drh
d44390c8c5 Performance improvement for column name lookup. 
FossilOrigin-Name: 1e4b6a93987cdfbf829e2ff35ef417c290625f2894ad11949e301af518f1fb44
 2020-04-06 18:16:31 +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
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
drh
dcdd707a9c Merge recent enhancements from trunk. 
FossilOrigin-Name: c705ce266ad25af71791035590875f0ea9f2c72826b3eda17f065d2bf091de92
 2020-03-31 18:41:21 +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
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
drh
e50478d727 Remove the SQLITE_OMIT_BTREECOUNT option. Btree count is required. 
FossilOrigin-Name: a9bfa47aeea27e91611ba913d33e6635d2016e2c2ab78f9b0657f1bd8933e1a8
 2020-03-17 13:41:51 +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
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
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
5f69512404 Early-out on the INTERSECT query processing following an error. 
FossilOrigin-Name: a67cf5b7d37d5b1484be32092635faafd8f76e5881898cd9435517c4b287d663
 2020-02-20 14:08:51 +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
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
dan
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
dan
70a32703ac Fix an assert() that could fail in SQLITE_MUTATION_TEST builds following an error in a query that uses CTEs. 
FossilOrigin-Name: c7e29458a73bbe73a1429477d0c01d5a7b870ab75d3cb08a703be21714e439b7
 2020-01-21 14:42:48 +00:00
drh
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
drh
be0330e853 New testcase() macros in select.c, for coverage of the change from two 
check-ins ago.

FossilOrigin-Name: 52206488f315803df73f964774270ef4783923407a2567936f56b0a1a88b4400
 2020-01-16 17:53:24 +00:00
drh
39df24a3f0 Do not allow the constant-propagation optimization to apple to ON/USING clause 
terms as it does not help and it might cause downstream problems.

FossilOrigin-Name: 1bc783da63d58b05c690468b569cb2787846357b63c1100d11777666c5787bf4
 2020-01-16 16:12:07 +00:00