mirror of
https://github.com/postgres/postgres.git
synced 2025-11-03 09:13:20 +03:00
e09b48316c
inet, cidr, and timetz indexes still cannot support index-only scans, because they don't store the original unmodified value in the index, but a derived approximate value.
38 lines
1.1 KiB
SQL
38 lines
1.1 KiB
SQL
-- 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';
|
|
|
|
SELECT count(*) FROM macaddrtmp WHERE a <= '22:00:5c:e5:9b:0d';
|
|
|
|
SELECT count(*) FROM macaddrtmp WHERE a = '22:00:5c:e5:9b:0d';
|
|
|
|
SELECT count(*) FROM macaddrtmp WHERE a >= '22:00:5c:e5:9b:0d';
|
|
|
|
SELECT count(*) FROM macaddrtmp WHERE a > '22:00:5c:e5:9b:0d';
|
|
|
|
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;
|
|
|
|
SELECT count(*) FROM macaddrtmp WHERE a <= '22:00:5c:e5:9b:0d'::macaddr;
|
|
|
|
SELECT count(*) FROM macaddrtmp WHERE a = '22:00:5c:e5:9b:0d'::macaddr;
|
|
|
|
SELECT count(*) FROM macaddrtmp WHERE a >= '22:00:5c:e5:9b:0d'::macaddr;
|
|
|
|
SELECT count(*) FROM macaddrtmp WHERE a > '22:00:5c:e5:9b:0d'::macaddr;
|
|
|
|
-- Test index-only scans
|
|
SET enable_bitmapscan=off;
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT * FROM macaddrtmp WHERE a < '02:03:04:05:06:07'::macaddr;
|
|
SELECT * FROM macaddrtmp WHERE a < '02:03:04:05:06:07'::macaddr;
|