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8436489c81
This extends GiST's support for nearest-neighbor searches to many of the standard data types. Teodor Sigaev
38 lines
1.2 KiB
SQL
38 lines
1.2 KiB
SQL
-- interval check
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CREATE TABLE intervaltmp (a interval);
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\copy intervaltmp from 'data/interval.data'
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SET enable_seqscan=on;
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SELECT count(*) FROM intervaltmp WHERE a < '199 days 21:21:23';
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SELECT count(*) FROM intervaltmp WHERE a <= '199 days 21:21:23';
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SELECT count(*) FROM intervaltmp WHERE a = '199 days 21:21:23';
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SELECT count(*) FROM intervaltmp WHERE a >= '199 days 21:21:23';
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SELECT count(*) FROM intervaltmp WHERE a > '199 days 21:21:23';
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SELECT a, a <-> '199 days 21:21:23' FROM intervaltmp ORDER BY a <-> '199 days 21:21:23' LIMIT 3;
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CREATE INDEX intervalidx ON intervaltmp USING gist ( a );
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SET enable_seqscan=off;
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SELECT count(*) FROM intervaltmp WHERE a < '199 days 21:21:23'::interval;
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SELECT count(*) FROM intervaltmp WHERE a <= '199 days 21:21:23'::interval;
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SELECT count(*) FROM intervaltmp WHERE a = '199 days 21:21:23'::interval;
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SELECT count(*) FROM intervaltmp WHERE a >= '199 days 21:21:23'::interval;
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SELECT count(*) FROM intervaltmp WHERE a > '199 days 21:21:23'::interval;
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EXPLAIN (COSTS OFF)
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SELECT a, a <-> '199 days 21:21:23' FROM intervaltmp ORDER BY a <-> '199 days 21:21:23' LIMIT 3;
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SELECT a, a <-> '199 days 21:21:23' FROM intervaltmp ORDER BY a <-> '199 days 21:21:23' LIMIT 3;
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