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Merge the stat2 query planner enhancements into the trunk.

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FossilOrigin-Name: 499edcbc8ab70fcf35431d4e672c68dbcb6c5aad
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drh
2011-02-04 06:36:44 +00:00
parent 9ab724f196 40ad34c608
commit 47fe5533a6
14 changed files with 598 additions and 139 deletions
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4
test/where3.test
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@ -225,14 +225,14 @@ do_execsql_test where3-3.0 {
ANALYZE;
explain query plan SELECT * FROM t302, t301 WHERE t302.x=5 AND t301.a=t302.y;
} {
0 0 0 {SCAN TABLE t302 (~0 rows)}
0 0 0 {SCAN TABLE t302 (~1 rows)}
0 1 1 {SEARCH TABLE t301 USING INTEGER PRIMARY KEY (rowid=?) (~1 rows)}
}
do_execsql_test where3-3.1 {
explain query plan
SELECT * FROM t301, t302 WHERE t302.x=5 AND t301.a=t302.y;
} {
0 0 1 {SCAN TABLE t302 (~0 rows)}
0 0 1 {SCAN TABLE t302 (~1 rows)}
0 1 0 {SEARCH TABLE t301 USING INTEGER PRIMARY KEY (rowid=?) (~1 rows)}
}