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Updated cost estimation to not use index when expected tuples is too low

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This commit is contained in:
Andrew Kane
2024-01-21 12:39:57 -08:00
parent 91acc3c178
commit f133e841b5
25 changed files with 223 additions and 50 deletions
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6
test/sql/ivfflat_l2.sql
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@@ -6,11 +6,11 @@ CREATE INDEX ON t USING ivfflat (val vector_l2_ops) WITH (lists = 1);
INSERT INTO t (val) VALUES ('[1,2,4]');
SELECT * FROM t ORDER BY val <-> '[3,3,3]';
SELECT * FROM t ORDER BY val <-> (SELECT NULL::vector);
SELECT * FROM t ORDER BY val <-> '[3,3,3]' LIMIT 5;
SELECT * FROM t ORDER BY val <-> (SELECT NULL::vector) LIMIT 5;
SELECT COUNT(*) FROM t;
TRUNCATE t;
SELECT * FROM t ORDER BY val <-> '[3,3,3]';
SELECT * FROM t ORDER BY val <-> '[3,3,3]' LIMIT 5;
DROP TABLE t;