macaddr.out

PostgreSQL 8.1.4的源码 适用于Linux下的开源数据库系统

-- macaddr check
CREATE TABLE macaddrtmp (a macaddr);
\copy macaddrtmp from 'data/macaddr.data'
SET enable_seqscan=on;
SELECT count(*) FROM macaddrtmp WHERE a <  '22:00:5c:e5:9b:0d';
 count 
-------
    56
(1 row)

SELECT count(*) FROM macaddrtmp WHERE a <= '22:00:5c:e5:9b:0d';
 count 
-------
    60
(1 row)

SELECT count(*) FROM macaddrtmp WHERE a  = '22:00:5c:e5:9b:0d';
 count 
-------
     4
(1 row)

SELECT count(*) FROM macaddrtmp WHERE a >= '22:00:5c:e5:9b:0d';
 count 
-------
   544
(1 row)

SELECT count(*) FROM macaddrtmp WHERE a >  '22:00:5c:e5:9b:0d';
 count 
-------
   540
(1 row)

CREATE INDEX macaddridx ON macaddrtmp USING gist ( a );
SET enable_seqscan=off;
SELECT count(*) FROM macaddrtmp WHERE a <  '22:00:5c:e5:9b:0d'::macaddr;
 count 
-------
    56
(1 row)

SELECT count(*) FROM macaddrtmp WHERE a <= '22:00:5c:e5:9b:0d'::macaddr;
 count 
-------
    60
(1 row)

SELECT count(*) FROM macaddrtmp WHERE a  = '22:00:5c:e5:9b:0d'::macaddr;
 count 
-------
     4
(1 row)

SELECT count(*) FROM macaddrtmp WHERE a >= '22:00:5c:e5:9b:0d'::macaddr;
 count 
-------
   544
(1 row)

SELECT count(*) FROM macaddrtmp WHERE a >  '22:00:5c:e5:9b:0d'::macaddr;
 count 
-------
   540
(1 row)