102 lines
2.1 KiB
Plaintext
102 lines
2.1 KiB
Plaintext
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-- inet check
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CREATE TABLE inettmp (a inet);
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\copy inettmp from 'data/inet.data'
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SET enable_seqscan=on;
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SELECT count(*) FROM inettmp WHERE a < '89.225.196.191';
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count
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-------
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213
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(1 row)
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SELECT count(*) FROM inettmp WHERE a <= '89.225.196.191';
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count
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-------
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214
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(1 row)
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SELECT count(*) FROM inettmp WHERE a = '89.225.196.191';
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count
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-------
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1
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(1 row)
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SELECT count(*) FROM inettmp WHERE a >= '89.225.196.191';
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count
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-------
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387
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(1 row)
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SELECT count(*) FROM inettmp WHERE a > '89.225.196.191';
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count
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-------
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386
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(1 row)
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CREATE INDEX inetidx ON inettmp USING gist ( a );
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SET enable_seqscan=off;
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SELECT count(*) FROM inettmp WHERE a < '89.225.196.191'::inet;
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count
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-------
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213
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(1 row)
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SELECT count(*) FROM inettmp WHERE a <= '89.225.196.191'::inet;
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count
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-------
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214
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(1 row)
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SELECT count(*) FROM inettmp WHERE a = '89.225.196.191'::inet;
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count
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-------
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1
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(1 row)
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SELECT count(*) FROM inettmp WHERE a >= '89.225.196.191'::inet;
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count
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-------
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387
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(1 row)
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SELECT count(*) FROM inettmp WHERE a > '89.225.196.191'::inet;
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count
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-------
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386
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(1 row)
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VACUUM ANALYZE inettmp;
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-- gist_inet_ops lacks a fetch function, so this should not be index-only scan
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EXPLAIN (COSTS OFF)
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SELECT count(*) FROM inettmp WHERE a = '89.225.196.191'::inet;
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QUERY PLAN
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--------------------------------------------------
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Aggregate
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-> Index Scan using inetidx on inettmp
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Index Cond: (a = '89.225.196.191'::inet)
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(3 rows)
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SELECT count(*) FROM inettmp WHERE a = '89.225.196.191'::inet;
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count
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-------
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1
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(1 row)
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DROP INDEX inetidx;
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CREATE INDEX ON inettmp USING gist (a gist_inet_ops, a inet_ops);
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-- this can be an index-only scan, as long as the planner uses the right column
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EXPLAIN (COSTS OFF)
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SELECT count(*) FROM inettmp WHERE a = '89.225.196.191'::inet;
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QUERY PLAN
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---------------------------------------------------------
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Aggregate
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-> Index Only Scan using inettmp_a_a1_idx on inettmp
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Index Cond: (a = '89.225.196.191'::inet)
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(3 rows)
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SELECT count(*) FROM inettmp WHERE a = '89.225.196.191'::inet;
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count
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-------
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1
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(1 row)
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