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postgres/contrib/btree_gist/sql/uuid.sql

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-- uuid check
CREATE TABLE uuidtmp (a uuid);
\copy uuidtmp from 'data/uuid.data'
SET enable_seqscan=on;
SELECT count(*) FROM uuidtmp WHERE a < '55e65ca2-4136-4a4b-ba78-cd3fe4678203';
SELECT count(*) FROM uuidtmp WHERE a <= '55e65ca2-4136-4a4b-ba78-cd3fe4678203';
SELECT count(*) FROM uuidtmp WHERE a = '55e65ca2-4136-4a4b-ba78-cd3fe4678203';
SELECT count(*) FROM uuidtmp WHERE a >= '55e65ca2-4136-4a4b-ba78-cd3fe4678203';
SELECT count(*) FROM uuidtmp WHERE a > '55e65ca2-4136-4a4b-ba78-cd3fe4678203';
SET client_min_messages = DEBUG1;
CREATE INDEX uuididx ON uuidtmp USING gist ( a );
CREATE INDEX uuididx_b ON uuidtmp USING gist ( a ) WITH (buffering=on);
DROP INDEX uuididx_b;
RESET client_min_messages;
SET enable_seqscan=off;
SELECT count(*) FROM uuidtmp WHERE a < '55e65ca2-4136-4a4b-ba78-cd3fe4678203'::uuid;
SELECT count(*) FROM uuidtmp WHERE a <= '55e65ca2-4136-4a4b-ba78-cd3fe4678203'::uuid;
SELECT count(*) FROM uuidtmp WHERE a = '55e65ca2-4136-4a4b-ba78-cd3fe4678203'::uuid;
SELECT count(*) FROM uuidtmp WHERE a >= '55e65ca2-4136-4a4b-ba78-cd3fe4678203'::uuid;
SELECT count(*) FROM uuidtmp WHERE a > '55e65ca2-4136-4a4b-ba78-cd3fe4678203'::uuid;