File: timestamp.sql

package info (click to toggle)
postgresql-9.1 9.1.15-0%2Bdeb8u1
  • links: PTS, VCS
  • area: main
  • in suites: jessie-kfreebsd
  • size: 109,092 kB
  • sloc: ansic: 575,877; sql: 43,887; yacc: 26,399; perl: 6,352; lex: 6,171; sh: 5,282; makefile: 3,772; asm: 65; sed: 15; python: 12
file content (37 lines) | stat: -rw-r--r-- 1,291 bytes parent folder | download | duplicates (16)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
-- timestamp check

CREATE TABLE timestamptmp (a timestamp);

\copy timestamptmp from 'data/timestamp.data'

SET enable_seqscan=on;

SELECT count(*) FROM timestamptmp WHERE a <  '2004-10-26 08:55:08';

SELECT count(*) FROM timestamptmp WHERE a <= '2004-10-26 08:55:08';

SELECT count(*) FROM timestamptmp WHERE a  = '2004-10-26 08:55:08';

SELECT count(*) FROM timestamptmp WHERE a >= '2004-10-26 08:55:08';

SELECT count(*) FROM timestamptmp WHERE a >  '2004-10-26 08:55:08';

SELECT a, a <-> '2004-10-26 08:55:08' FROM timestamptmp ORDER BY a <-> '2004-10-26 08:55:08' LIMIT 3;

CREATE INDEX timestampidx ON timestamptmp USING gist ( a );

SET enable_seqscan=off;

SELECT count(*) FROM timestamptmp WHERE a <  '2004-10-26 08:55:08'::timestamp;

SELECT count(*) FROM timestamptmp WHERE a <= '2004-10-26 08:55:08'::timestamp;

SELECT count(*) FROM timestamptmp WHERE a  = '2004-10-26 08:55:08'::timestamp;

SELECT count(*) FROM timestamptmp WHERE a >= '2004-10-26 08:55:08'::timestamp;

SELECT count(*) FROM timestamptmp WHERE a >  '2004-10-26 08:55:08'::timestamp;

EXPLAIN (COSTS OFF)
SELECT a, a <-> '2004-10-26 08:55:08' FROM timestamptmp ORDER BY a <-> '2004-10-26 08:55:08' LIMIT 3;
SELECT a, a <-> '2004-10-26 08:55:08' FROM timestamptmp ORDER BY a <-> '2004-10-26 08:55:08' LIMIT 3;