drh
083310dfcc
Change the weighting of binary searches on tables to 1/10th the cost of a
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search on an index. Change the assumed reduction in search space from a
indexed range constraint from 1/3rd to 1/4th. Do not let the estimated
number of rows drop below 1.
FossilOrigin-Name: 4847c6cb71423248b186ab7842b97c83e2f5fefd
2011-01-28 01:57:41 +00:00
dan
68928b6c3e
Some changes to test scripts related to codec enabled versions of sqlite.
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FossilOrigin-Name: 85dd51a75c75b2a123744f646e04538e4e5d89b3
2010-06-22 13:46:43 +00:00
drh
1d9da70ad7
Fix the expression comparison logic to take the COLLATE operator into account.
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Ticket [360c6073e197]
FossilOrigin-Name: 44bb1bfe5dedd8054ddd933941ee4112ed8d3b68
2010-01-07 15:17:02 +00:00
drh
e8f52c5089
Remove leftover debugging commands (breakpoint and btree_breakpoint) from
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test scripts. (CVS 5400)
FossilOrigin-Name: dcb160249fa2d592ad09b8b0052102dc44a93511
2008-07-12 14:52:20 +00:00
danielk1977
473c35223e
Fix a problem with min() and descending indexes. (CVS 4933)
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FossilOrigin-Name: 39705b617a775d4299e98ac88fab4525a64d8b78
2008-03-28 19:16:56 +00:00
danielk1977
e5f5b8f1f0
Fix for #3022 . Handle queries like "SELECT min(b) FROM T WHERE a = X AND b > X" when there is an index on (a,b). (CVS 4930)
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FossilOrigin-Name: bce289753538ab504e55c4215d6cd4f5df137d9e
2008-03-28 18:11:16 +00:00
drh
bb8a279e11
Remove the dependency on the direct btree interface from as many test
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scripts as is practical. Fix a bug in the output limiter of the
integrity_check pragma that came up while making this change. (CVS 4880)
FossilOrigin-Name: 24e769972eb6052b82dc94d20444c186a213e104
2008-03-19 00:21:30 +00:00
danielk1977
a9d1ccb9b0
First pass at optimizing max()/min() as described in #2853 . Some refinements to come. (CVS 4687)
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FossilOrigin-Name: c449e04f1870b1ff726c95c0bf1c6c6a22ca588a
2008-01-05 17:39:29 +00:00
