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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.
38 lines
970 B
SQL
38 lines
970 B
SQL
-- char check
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CREATE TABLE chartmp (a char(32));
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\copy chartmp from 'data/char.data'
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SET enable_seqscan=on;
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SELECT count(*) FROM chartmp WHERE a < '31b0'::char(32);
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SELECT count(*) FROM chartmp WHERE a <= '31b0'::char(32);
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SELECT count(*) FROM chartmp WHERE a = '31b0'::char(32);
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SELECT count(*) FROM chartmp WHERE a >= '31b0'::char(32);
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SELECT count(*) FROM chartmp WHERE a > '31b0'::char(32);
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CREATE INDEX charidx ON chartmp USING GIST ( a );
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SET enable_seqscan=off;
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SELECT count(*) FROM chartmp WHERE a < '31b0'::char(32);
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SELECT count(*) FROM chartmp WHERE a <= '31b0'::char(32);
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SELECT count(*) FROM chartmp WHERE a = '31b0'::char(32);
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SELECT count(*) FROM chartmp WHERE a >= '31b0'::char(32);
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SELECT count(*) FROM chartmp WHERE a > '31b0'::char(32);
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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 chartmp WHERE a BETWEEN '31a' AND '31c';
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SELECT * FROM chartmp WHERE a BETWEEN '31a' AND '31c';
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