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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
990 B
SQL
38 lines
990 B
SQL
-- time check
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CREATE TABLE timetmp (a time);
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\copy timetmp from 'data/time.data'
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SET enable_seqscan=on;
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SELECT count(*) FROM timetmp WHERE a < '10:57:11';
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SELECT count(*) FROM timetmp WHERE a <= '10:57:11';
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SELECT count(*) FROM timetmp WHERE a = '10:57:11';
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SELECT count(*) FROM timetmp WHERE a >= '10:57:11';
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SELECT count(*) FROM timetmp WHERE a > '10:57:11';
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SELECT a, a <-> '10:57:11' FROM timetmp ORDER BY a <-> '10:57:11' LIMIT 3;
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CREATE INDEX timeidx ON timetmp USING gist ( a );
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SET enable_seqscan=off;
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SELECT count(*) FROM timetmp WHERE a < '10:57:11'::time;
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SELECT count(*) FROM timetmp WHERE a <= '10:57:11'::time;
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SELECT count(*) FROM timetmp WHERE a = '10:57:11'::time;
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SELECT count(*) FROM timetmp WHERE a >= '10:57:11'::time;
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SELECT count(*) FROM timetmp WHERE a > '10:57:11'::time;
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EXPLAIN (COSTS OFF)
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SELECT a, a <-> '10:57:11' FROM timetmp ORDER BY a <-> '10:57:11' LIMIT 3;
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SELECT a, a <-> '10:57:11' FROM timetmp ORDER BY a <-> '10:57:11' LIMIT 3;
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