postgresql

Commit Graph

Author	SHA1	Message	Date
Dean Rasheed	849172ff48	btree_gin: Fix calculation of leftmost interval value. Formerly, the value computed by leftmostvalue_interval() was a long way short of the minimum possible interval value. As a result, an index scan on a GIN index on an interval column with < or <= operators would miss large negative interval values. Fix by setting all fields of the leftmost interval to their minimum values, ensuring that the result is less than any other possible interval. Since this only affects index searches, no index rebuild is necessary. Back-patch to all supported branches. Dean Rasheed, reviewed by Heikki Linnakangas. Discussion: https://postgr.es/m/CAEZATCV80%2BgOfF8ehNUUfaKBZgZMDfCfL-g1HhWGb6kC3rpDfw%40mail.gmail.com	2023-10-29 11:14:37 +00:00
Peter Eisentraut	fc946c39ae	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
Tom Lane	9151e1bb06	Add btree_gin contrib module. Teodor Sigaev and Oleg Bartunov	2009-03-25 23:20:01 +00:00

Author

SHA1

Message

Date

Dean Rasheed

849172ff48

btree_gin: Fix calculation of leftmost interval value.

Formerly, the value computed by leftmostvalue_interval() was a long
way short of the minimum possible interval value.  As a result, an
index scan on a GIN index on an interval column with < or <= operators
would miss large negative interval values.

Fix by setting all fields of the leftmost interval to their minimum
values, ensuring that the result is less than any other possible
interval.  Since this only affects index searches, no index rebuild is
necessary.

Back-patch to all supported branches.

Dean Rasheed, reviewed by Heikki Linnakangas.

Discussion: https://postgr.es/m/CAEZATCV80%2BgOfF8ehNUUfaKBZgZMDfCfL-g1HhWGb6kC3rpDfw%40mail.gmail.com

2023-10-29 11:14:37 +00:00

Peter Eisentraut

fc946c39ae

Remove useless whitespace at end of lines

2010-11-23 22:34:55 +02:00

Tom Lane

9151e1bb06

Add btree_gin contrib module.

Teodor Sigaev and Oleg Bartunov

2009-03-25 23:20:01 +00:00

3 Commits