drh
175b8f06f7
Remove support for STAT3. The sqlite_stat3 tables are ignored, if they
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exist. STAT4 continues to work as it always has, and as it is a superset of
STAT3 is the recommended replacement.
FossilOrigin-Name: 1e17ea2fd1df4ad49138c787c8fe3207dd0c25c93f9001d52a9b69f8c12e841c
2019-08-08 15:24:17 +00:00
drh
cdf88760da
More test case updates. Tests are all running now.
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FossilOrigin-Name: dab5e5294813891469660cceb211ac1a1e526715bb57dcdbb1ab90321e6a4dad
2018-05-02 19:42:33 +00:00
drh
6d3f91d040
Change the query planner to do a better job of estimating the number rows
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selected by a BETWEEN operator using STAT4 when both upper and lower bounds
are contained within the same sample.
FossilOrigin-Name: 2d36be5d9a1cdd4fd2d54fc4eeece32a81cbacc1
2014-11-05 19:26:12 +00:00
dan
f00e902580
Change the way ANALYZE works to use a single cursor when scanning indices.
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FossilOrigin-Name: bdce612b35193abf72de1a563ea7962375b3574e
2013-08-14 19:54:12 +00:00
dan
8ad169abb4
If ENABLE_STAT3 is defined but ENABLE_STAT4 is not, have ANALYZE create and populate the sqlite_stat3 table instead of sqlite_stat4.
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FossilOrigin-Name: cca8bf4372ab7a0258aa5c9397818415c6cf0abf
2013-08-12 20:14:04 +00:00
dan
6cb8d76ccb
Fix a bug in using stat4 data to estimate the number of rows selected by a range constraint.
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FossilOrigin-Name: f783938ea999731ea073cd2c78e278095f7bea6d
2013-08-08 11:48:57 +00:00
dan
f52bb8d385
Begin adding experimental sqlite_stat4 table. This commit is buggy.
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FossilOrigin-Name: 2beea303a1d609cd2ff252412c50b966b9e5e8f1
2013-08-03 20:24:58 +00:00
drh
5822d6feb2
Fix test cases for the new EXPLAIN QUERY PLAN format. Add the
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wherecosttest tool. Other fixes to logarithm cost.
FossilOrigin-Name: aa580e368e3c398b8377b80342dfdd906324c248
2013-06-10 23:30:09 +00:00
drh
461728d3d0
Add the analyze8.test test module for sqlite_stat3.
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FossilOrigin-Name: 2c83ac89dc5a6017587defb541c9f3731b98892a
2011-08-16 01:15:12 +00:00
