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Started support for parallel index scan [skip ci]

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This commit is contained in:
Andrew Kane
2023-06-29 23:17:59 -04:00
parent de6502ab6e
commit 455b5d867c
3 changed files with 46 additions and 4 deletions
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16
test/sql/ivfflat_parallel.sql Normal file
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-- SET force_parallel_mode = on;
SET parallel_setup_cost = 10;
SET parallel_tuple_cost = 0.000001;
SET min_parallel_table_scan_size = 1;
SET min_parallel_index_scan_size = 1;
CREATE TABLE t (id integer, val vector(3));
ALTER TABLE t ALTER COLUMN val SET STORAGE PLAIN;
INSERT INTO t (id, val) SELECT n, ARRAY[random(), random(), random()] FROM generate_series(1,1000000) n;
CREATE INDEX ON t USING ivfflat (val) WITH (lists = 10);
SET ivfflat.probes = 4;
EXPLAIN SELECT * FROM t ORDER BY val <-> '[0.5,0.5,0.5]' LIMIT 5;
SELECT * FROM t ORDER BY val <-> '[0.5,0.5,0.5]' LIMIT 5;
DROP TABLE t;