citus

Author	SHA1	Message	Date
velioglu	78e6d990a2	Fix master plan of the query with distinct, aggregate and group by clauses. Before this PR, we were trusting on the columns of group by about guaranteeing the uniqueness of the results. However, this assumption is correct only if the columns in the group by is subset of columns in the distinct clause. It can be wrong if we have part of group by columns and some aggregation columns in the distinct clause. With this PR, we add distinct plan on top of aggregate plan when necessary.	2018-02-26 15:30:15 +03:00
metdos	35f864bcaf	Respect enable_hashagg in the master planner	2018-02-05 15:06:00 +02:00
mehmet furkan şahin	314fc09d90	regression test shard_count is changed from 32 to 4	2017-11-20 12:47:49 +03:00
Murat Tuncer	f7ab901766	Add select distinct, and distinct on support Distinct, and distinct on() clauses are supported in simple selects, joins, subqueries, and insert into select queries.	2017-10-13 14:59:48 +03:00