database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-13 07:41:39 +03:00
Code Activity

Add index-only scan support to btree_gist.

Browse Source 
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.
This commit is contained in:
Heikki Linnakangas
2015-03-27 23:35:16 +02:00
parent 735cd6128a
commit e09b48316c
46 changed files with 614 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
contrib/btree_gist/sql/varbit.sql
View File

@ -29,3 +29,8 @@ SELECT count(*) FROM varbittmp WHERE a = '1110100111010'::varbit;
SELECT count(*) FROM varbittmp WHERE a >= '1110100111010'::varbit;
SELECT count(*) FROM varbittmp WHERE a > '1110100111010'::varbit;
-- Test index-only scans
SET enable_bitmapscan=off;
EXPLAIN (COSTS OFF)
SELECT a FROM bittmp WHERE a BETWEEN '1000000' and '1000001';