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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.
90 lines
1.8 KiB
Plaintext
90 lines
1.8 KiB
Plaintext
-- macaddr check
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CREATE TABLE macaddrtmp (a macaddr);
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\copy macaddrtmp from 'data/macaddr.data'
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SET enable_seqscan=on;
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SELECT count(*) FROM macaddrtmp WHERE a < '22:00:5c:e5:9b:0d';
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count
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-------
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56
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(1 row)
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SELECT count(*) FROM macaddrtmp WHERE a <= '22:00:5c:e5:9b:0d';
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count
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-------
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60
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(1 row)
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SELECT count(*) FROM macaddrtmp WHERE a = '22:00:5c:e5:9b:0d';
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count
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-------
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4
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(1 row)
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SELECT count(*) FROM macaddrtmp WHERE a >= '22:00:5c:e5:9b:0d';
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count
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-------
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544
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(1 row)
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SELECT count(*) FROM macaddrtmp WHERE a > '22:00:5c:e5:9b:0d';
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count
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-------
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540
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(1 row)
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CREATE INDEX macaddridx ON macaddrtmp USING gist ( a );
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SET enable_seqscan=off;
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SELECT count(*) FROM macaddrtmp WHERE a < '22:00:5c:e5:9b:0d'::macaddr;
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count
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-------
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56
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(1 row)
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SELECT count(*) FROM macaddrtmp WHERE a <= '22:00:5c:e5:9b:0d'::macaddr;
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count
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-------
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60
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(1 row)
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SELECT count(*) FROM macaddrtmp WHERE a = '22:00:5c:e5:9b:0d'::macaddr;
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count
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-------
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4
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(1 row)
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SELECT count(*) FROM macaddrtmp WHERE a >= '22:00:5c:e5:9b:0d'::macaddr;
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count
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-------
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544
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(1 row)
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SELECT count(*) FROM macaddrtmp WHERE a > '22:00:5c:e5:9b:0d'::macaddr;
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count
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-------
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540
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(1 row)
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-- Test index-only scans
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SET enable_bitmapscan=off;
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EXPLAIN (COSTS OFF)
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SELECT * FROM macaddrtmp WHERE a < '02:03:04:05:06:07'::macaddr;
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QUERY PLAN
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--------------------------------------------------
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Index Only Scan using macaddridx on macaddrtmp
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Index Cond: (a < '02:03:04:05:06:07'::macaddr)
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(2 rows)
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SELECT * FROM macaddrtmp WHERE a < '02:03:04:05:06:07'::macaddr;
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a
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-------------------
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01:02:37:05:4f:36
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01:02:37:05:4f:36
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01:02:37:05:4f:36
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01:02:37:05:4f:36
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01:43:b5:79:eb:0f
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01:43:b5:79:eb:0f
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01:43:b5:79:eb:0f
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01:43:b5:79:eb:0f
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(8 rows)
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