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|
-- char check
CREATE TABLE vchartmp (a varchar(32));
\copy vchartmp from 'data/char.data'
SET enable_seqscan=on;
SELECT count(*) FROM vchartmp WHERE a < '31b0'::varchar(32);
count
-------
587
(1 row)
SELECT count(*) FROM vchartmp WHERE a <= '31b0'::varchar(32);
count
-------
588
(1 row)
SELECT count(*) FROM vchartmp WHERE a = '31b0'::varchar(32);
count
-------
1
(1 row)
SELECT count(*) FROM vchartmp WHERE a >= '31b0'::varchar(32);
count
-------
401
(1 row)
SELECT count(*) FROM vchartmp WHERE a > '31b0'::varchar(32);
count
-------
400
(1 row)
CREATE INDEX vcharidx ON vchartmp USING GIST ( text(a) );
SET enable_seqscan=off;
SELECT count(*) FROM vchartmp WHERE a < '31b0'::varchar(32);
count
-------
587
(1 row)
SELECT count(*) FROM vchartmp WHERE a <= '31b0'::varchar(32);
count
-------
588
(1 row)
SELECT count(*) FROM vchartmp WHERE a = '31b0'::varchar(32);
count
-------
1
(1 row)
SELECT count(*) FROM vchartmp WHERE a >= '31b0'::varchar(32);
count
-------
401
(1 row)
SELECT count(*) FROM vchartmp WHERE a > '31b0'::varchar(32);
count
-------
400
(1 row)
|
