mirror of
https://github.com/postgres/postgres.git
synced 2025-11-03 09:13:20 +03:00
67 lines
1.0 KiB
Plaintext
67 lines
1.0 KiB
Plaintext
-- date check
|
|
CREATE TABLE datetmp (a date);
|
|
\copy datetmp from 'data/date.data'
|
|
SET enable_seqscan=on;
|
|
SELECT count(*) FROM datetmp WHERE a < '2001-02-13';
|
|
count
|
|
-------
|
|
230
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM datetmp WHERE a <= '2001-02-13';
|
|
count
|
|
-------
|
|
231
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM datetmp WHERE a = '2001-02-13';
|
|
count
|
|
-------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM datetmp WHERE a >= '2001-02-13';
|
|
count
|
|
-------
|
|
314
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM datetmp WHERE a > '2001-02-13';
|
|
count
|
|
-------
|
|
313
|
|
(1 row)
|
|
|
|
CREATE INDEX dateidx ON datetmp USING gist ( a );
|
|
SET enable_seqscan=off;
|
|
SELECT count(*) FROM datetmp WHERE a < '2001-02-13'::date;
|
|
count
|
|
-------
|
|
230
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM datetmp WHERE a <= '2001-02-13'::date;
|
|
count
|
|
-------
|
|
231
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM datetmp WHERE a = '2001-02-13'::date;
|
|
count
|
|
-------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM datetmp WHERE a >= '2001-02-13'::date;
|
|
count
|
|
-------
|
|
314
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM datetmp WHERE a > '2001-02-13'::date;
|
|
count
|
|
-------
|
|
313
|
|
(1 row)
|
|
|