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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.
77 lines
1.5 KiB
Plaintext
77 lines
1.5 KiB
Plaintext
-- varbit check
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CREATE TABLE varbittmp (a varbit);
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\copy varbittmp from 'data/varbit.data'
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SET enable_seqscan=on;
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SELECT count(*) FROM varbittmp WHERE a < '1110100111010';
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count
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-------
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549
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(1 row)
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SELECT count(*) FROM varbittmp WHERE a <= '1110100111010';
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count
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-------
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550
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(1 row)
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SELECT count(*) FROM varbittmp WHERE a = '1110100111010';
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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 varbittmp WHERE a >= '1110100111010';
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count
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-------
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51
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(1 row)
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SELECT count(*) FROM varbittmp WHERE a > '1110100111010';
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count
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-------
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50
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(1 row)
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CREATE INDEX varbitidx ON varbittmp USING GIST ( a );
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SET enable_seqscan=off;
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SELECT count(*) FROM varbittmp WHERE a < '1110100111010'::varbit;
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count
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-------
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549
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(1 row)
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SELECT count(*) FROM varbittmp WHERE a <= '1110100111010'::varbit;
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count
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-------
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550
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(1 row)
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SELECT count(*) FROM varbittmp WHERE a = '1110100111010'::varbit;
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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 varbittmp WHERE a >= '1110100111010'::varbit;
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count
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-------
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51
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(1 row)
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SELECT count(*) FROM varbittmp WHERE a > '1110100111010'::varbit;
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count
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-------
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50
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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 a FROM bittmp WHERE a BETWEEN '1000000' and '1000001';
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QUERY PLAN
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-----------------------------------------------------------------------
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Index Only Scan using bitidx on bittmp
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Index Cond: ((a >= B'1000000'::"bit") AND (a <= B'1000001'::"bit"))
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(2 rows)
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