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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2015-03-27 23:35:16 +0200 |
|---|---|---|
| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2015-03-27 23:35:16 +0200 |
| commit | e09b48316c22fce727bce3c89fa64fc627787e6a (patch) | |
| tree | 107a22f368efd340c6f545f0e6b7130b5063aa08 /contrib/btree_gist/sql/numeric.sql | |
| parent | 735cd6128a6a401671126443a9af4324932a38d6 (diff) | |
| download | postgresql-e09b48316c22fce727bce3c89fa64fc627787e6a.tar.gz postgresql-e09b48316c22fce727bce3c89fa64fc627787e6a.zip | |
Add index-only scan support to btree_gist.
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.
Diffstat (limited to 'contrib/btree_gist/sql/numeric.sql')
| -rw-r--r-- | contrib/btree_gist/sql/numeric.sql | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/contrib/btree_gist/sql/numeric.sql b/contrib/btree_gist/sql/numeric.sql index ae4ef7c689d..dbb2f2f1838 100644 --- a/contrib/btree_gist/sql/numeric.sql +++ b/contrib/btree_gist/sql/numeric.sql @@ -75,3 +75,9 @@ SELECT count(*) FROM numerictmp WHERE a = 0 ; SELECT count(*) FROM numerictmp WHERE a >= 0 ; SELECT count(*) FROM numerictmp WHERE a > 0 ; + +-- Test index-only scans +SET enable_bitmapscan=off; +EXPLAIN (COSTS OFF) +SELECT * FROM numerictmp WHERE a BETWEEN 1 AND 300 ORDER BY a; +SELECT * FROM numerictmp WHERE a BETWEEN 1 AND 300 ORDER BY a; |