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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/expected/numeric.out | |
| 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/expected/numeric.out')
| -rw-r--r-- | contrib/btree_gist/expected/numeric.out | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/contrib/btree_gist/expected/numeric.out b/contrib/btree_gist/expected/numeric.out index 1ab7ae6486b..b9b67b503a2 100644 --- a/contrib/btree_gist/expected/numeric.out +++ b/contrib/btree_gist/expected/numeric.out @@ -186,3 +186,22 @@ SELECT count(*) FROM numerictmp WHERE a > 0 ; 576 (1 row) +-- Test index-only scans +SET enable_bitmapscan=off; +EXPLAIN (COSTS OFF) +SELECT * FROM numerictmp WHERE a BETWEEN 1 AND 300 ORDER BY a; + QUERY PLAN +----------------------------------------------------------------- + Sort + Sort Key: a + -> Index Only Scan using numericidx on numerictmp + Index Cond: ((a >= 1::numeric) AND (a <= 300::numeric)) +(4 rows) + +SELECT * FROM numerictmp WHERE a BETWEEN 1 AND 300 ORDER BY a; + a +------------ + 204.035430 + 207.400532 +(2 rows) + |