postgresql/contrib/btree_gist/sql/enum.sql

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2023-05-09 21:11:15 +00:00
-- enum check
create type rainbow as enum ('r','o','y','g','b','i','v');
CREATE TABLE enumtmp (a rainbow);
\copy enumtmp from 'data/enum.data'
SET enable_seqscan=on;
select a, count(*) from enumtmp group by a order by 1;
SELECT count(*) FROM enumtmp WHERE a < 'g'::rainbow;
SELECT count(*) FROM enumtmp WHERE a <= 'g'::rainbow;
SELECT count(*) FROM enumtmp WHERE a = 'g'::rainbow;
SELECT count(*) FROM enumtmp WHERE a >= 'g'::rainbow;
SELECT count(*) FROM enumtmp WHERE a > 'g'::rainbow;
CREATE INDEX enumidx ON enumtmp USING gist ( a );
SET enable_seqscan=off;
SELECT count(*) FROM enumtmp WHERE a < 'g'::rainbow;
SELECT count(*) FROM enumtmp WHERE a <= 'g'::rainbow;
SELECT count(*) FROM enumtmp WHERE a = 'g'::rainbow;
SELECT count(*) FROM enumtmp WHERE a >= 'g'::rainbow;
SELECT count(*) FROM enumtmp WHERE a > 'g'::rainbow;
EXPLAIN (COSTS OFF)
SELECT count(*) FROM enumtmp WHERE a >= 'g'::rainbow;