Commit Graph

5 Commits

Author SHA1 Message Date
drh
5822d6feb2 Fix test cases for the new EXPLAIN QUERY PLAN format. Add the
wherecosttest tool.  Other fixes to logarithm cost.

FossilOrigin-Name: aa580e368e3c398b8377b80342dfdd906324c248
2013-06-10 23:30:09 +00:00
drh
3f4d1d1b02 Attempt to use a covering index even on a full table scan, under the theory
that the index will be smaller and require less disk I/O and thus be faster.

FossilOrigin-Name: cfaa7bc12847a7006ccc93815f2395ad5259744a
2012-09-15 18:45:54 +00:00
drh
50a1c56a2e Update some test cases to work with sqlite_stat3 instead of sqlite_stat2.
FossilOrigin-Name: 2504bcfb0cf14b5ce51db0af1269ac28384714e0
2011-08-15 12:58:23 +00:00
drh
f6cf1ffb39 Do not generate sqlite_stat1 entries for empty tables when running
ANALYZE.  Ticket [83ea97620bd31016451]

FossilOrigin-Name: 3a27af5b3c688c651ba1fae261026ef77b7ff5e3
2011-03-30 14:54:05 +00:00
drh
92e4feb74c Do a better job of choosing the join table order when the tables having
very different numbers of rows.

FossilOrigin-Name: 952f5e8c69904c48f2decfabf8ea60a2e9f3e134
2011-03-04 00:56:58 +00:00