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Tuning the query planner by adjusting the weights that predict the relative

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performance of sorting and index lookup.

FossilOrigin-Name: 9f2806da4d88beceac2e81e05421f00481dd3dd100b096cd2ae6c828adb42ca7
This commit is contained in:
drh
2022-12-03 00:52:21 +00:00
parent bb4e4a4840
commit 1edd0a089c
5 changed files with 29 additions and 16 deletions
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3
test/orderby1.test
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@ -43,6 +43,7 @@ do_test 1.0 {
(NULL, 1, 3, 'one-c'),
(NULL, 2, 1, 'two-a'),
(NULL, 3, 1, 'three-a');
ANALYZE;
COMMIT;
}
} {}
@ -180,6 +181,7 @@ do_test 2.0 {
(1, 3, 'one-c'),
(20, 1, 'two-a'),
(3, 1, 'three-a');
ANALYZE;
COMMIT;
}
} {}
@ -327,6 +329,7 @@ do_test 3.0 {
(NULL, 1, 3, 'one-c'),
(NULL, 2, 1, 'two-a'),
(NULL, 3, 1, 'three-a');
ANALYZE;
COMMIT;
}
} {}

1
test/where.test
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@ -545,6 +545,7 @@ do_test where-6.1 {
CREATE INDEX t3acb ON t3(a,c,b);
INSERT INTO t3 SELECT w, 101-w, y FROM t1;
SELECT count(*), sum(a), sum(b), sum(c) FROM t3;
ANALYZE;
}
} {100 5050 5050 348550}
do_test where-6.2 {