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|
-- 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)
-- Test index-only scans
SET enable_bitmapscan=off;
EXPLAIN (COSTS OFF)
SELECT * FROM macaddrtmp WHERE a < '02:03:04:05:06:07'::macaddr;
QUERY PLAN
--------------------------------------------------
Index Only Scan using macaddridx on macaddrtmp
Index Cond: (a < '02:03:04:05:06:07'::macaddr)
(2 rows)
SELECT * FROM macaddrtmp WHERE a < '02:03:04:05:06:07'::macaddr;
a
-------------------
01:02:37:05:4f:36
01:02:37:05:4f:36
01:02:37:05:4f:36
01:02:37:05:4f:36
01:43:b5:79:eb:0f
01:43:b5:79:eb:0f
01:43:b5:79:eb:0f
01:43:b5:79:eb:0f
(8 rows)
|
