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|
-- oid check
SET enable_seqscan=on;
CREATE TEMPORARY TABLE oidtmp (oid oid);
INSERT INTO oidtmp SELECT g.i::oid FROM generate_series(1, 1000) g(i);
SELECT count(*) FROM oidtmp WHERE oid < 17;
count
-------
16
(1 row)
SELECT count(*) FROM oidtmp WHERE oid <= 17;
count
-------
17
(1 row)
SELECT count(*) FROM oidtmp WHERE oid = 17;
count
-------
1
(1 row)
SELECT count(*) FROM oidtmp WHERE oid >= 17;
count
-------
984
(1 row)
SELECT count(*) FROM oidtmp WHERE oid > 17;
count
-------
983
(1 row)
CREATE INDEX oididx ON oidtmp USING gist ( oid );
SET enable_seqscan=off;
SELECT count(*) FROM oidtmp WHERE oid < 17;
count
-------
16
(1 row)
SELECT count(*) FROM oidtmp WHERE oid <= 17;
count
-------
17
(1 row)
SELECT count(*) FROM oidtmp WHERE oid = 17;
count
-------
1
(1 row)
SELECT count(*) FROM oidtmp WHERE oid >= 17;
count
-------
984
(1 row)
SELECT count(*) FROM oidtmp WHERE oid > 17;
count
-------
983
(1 row)
|
