drh
6b10a6a7ed
Test cases and bug fixes applied to the ORDER BY optimization for joins.
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Some test cases fail, but except for the new orderby1.test failures, all
failures appear to be issues with the tests, not with the core code.
FossilOrigin-Name: 75cda864ededb6dc0f84bd52ed3311753a58e351
2012-09-27 17:31:32 +00:00
dan
38cc40c216
Experimental changes to improve optimization of DISTINCT queries.
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FossilOrigin-Name: f7ba0219ef2f235543c258be736955d91ca5ecce
2011-06-30 20:17:15 +00:00
drh
5a70d286f5
Add test case for ticket #3376 . (CVS 5705)
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FossilOrigin-Name: c64260579d353df3eae8c355b082b8206bc6185b
2008-09-16 11:58:20 +00:00
danielk1977
3c4809a201
Where possible, transform the DISTINCT qualifier to a GROUP BY clause. GROUP BY clauses may be optimized by indices, DISTINCT qualifiers cannot. (CVS 4538)
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FossilOrigin-Name: e56331234791cf3d830a30e4cfa66682bdf2eed1
2007-11-12 15:29:18 +00:00
drh
5774b80629
More bug fixes. But there are still tests that fail. (CVS 2664)
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FossilOrigin-Name: 7e85a162d0ecf0acdbffcacc62b60d97fe123881
2005-09-07 22:48:16 +00:00
drh
495c09a49a
Make the ORDER BY clause return equal elements in the same order they were
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seen (a stable sort). It was returning them in exactly the reverse order. (CVS 2439)
FossilOrigin-Name: e8391491a68018406e30c2a699a4cab9e0de092c
2005-04-01 10:47:40 +00:00
danielk1977
e61b9f4f3c
Modify test scripts to work when SQLITE_OMIT_SUBQUERY (but no other OMIT macros) is defined. (CVS 2252)
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FossilOrigin-Name: d4e19efcef68d834c55c7d496cdb3696d63a31a2
2005-01-21 04:25:47 +00:00
danielk1977
27c774388a
Ensure tests pass when SQLITE_OMIT_COMPOUND_SELECT is defined. (CVS 2138)
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FossilOrigin-Name: 007be591b7829f9ff38e4b14ba5a5043796c2ff3
2004-11-22 13:35:41 +00:00
danielk1977
dc1bdc4f9d
Fix various collation sequence issues. (CVS 1568)
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FossilOrigin-Name: 66835ee67051027456a536e33b2f88a741654525
2004-06-11 10:51:27 +00:00
