mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-12-09 08:10:09 +08:00
67 lines
1.1 KiB
Plaintext
67 lines
1.1 KiB
Plaintext
-- varbit check
|
|
CREATE TABLE varbittmp (a varbit);
|
|
\copy varbittmp from 'data/varbit.data'
|
|
SET enable_seqscan=on;
|
|
SELECT count(*) FROM varbittmp WHERE a < '1110100111010';
|
|
count
|
|
-------
|
|
549
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM varbittmp WHERE a <= '1110100111010';
|
|
count
|
|
-------
|
|
550
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM varbittmp WHERE a = '1110100111010';
|
|
count
|
|
-------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM varbittmp WHERE a >= '1110100111010';
|
|
count
|
|
-------
|
|
51
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM varbittmp WHERE a > '1110100111010';
|
|
count
|
|
-------
|
|
50
|
|
(1 row)
|
|
|
|
CREATE INDEX varbitidx ON varbittmp USING GIST ( a );
|
|
SET enable_seqscan=off;
|
|
SELECT count(*) FROM varbittmp WHERE a < '1110100111010'::varbit;
|
|
count
|
|
-------
|
|
549
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM varbittmp WHERE a <= '1110100111010'::varbit;
|
|
count
|
|
-------
|
|
550
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM varbittmp WHERE a = '1110100111010'::varbit;
|
|
count
|
|
-------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM varbittmp WHERE a >= '1110100111010'::varbit;
|
|
count
|
|
-------
|
|
51
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM varbittmp WHERE a > '1110100111010'::varbit;
|
|
count
|
|
-------
|
|
50
|
|
(1 row)
|
|
|