7 commits

Author	SHA1	Message	Date
Julien Rouhaud	79220f2c71	Fix NULL ordering for SORTBY_DESC case. Thanks to Andrew Kane for the ... report and test case.	2017-09-05 06:45:31 +02:00
Julien Rouhaud	d2cfd7898f	Add a hypopg_get_indexdef(oid) function	2016-11-16 23:49:27 +01:00
Julien Rouhaud	c05e2da4f7	Add support for hypothetical indexes on expression. ... The estimation (size and cardinality) will probably always be very poor, the postgres infrastructure get accurate informations by analyzing a real index. One consequence is that almost only Bitmap Index Scan will be chosen by the planner. Some simple and frequent expressions are explicitely handled (for now md5(), lower() and uppser()), but it only impacts the estimated size, not the selectivity.	2016-11-15 15:31:09 +01:00
Julien Rouhaud	022ac3396e	Add regression test for expression indexes. ... This has already been broken twice, make sure it won't happen again.	2016-06-07 20:10:04 +02:00
Julien Rouhaud	079a4f7610	Test hypopg.enabled GUC	2015-09-14 17:49:33 +02:00
Julien Rouhaud	1f211190fd	Add some more tests	2015-09-03 19:02:32 +02:00
Julien Rouhaud	3bf0e6d118	Add some basic regression test.	2015-07-11 10:28:34 +02:00