elasticsearch/elasticsearch — pull request #4773 by martijnvg (2014-01-16 21:07:21+00:00)
Title: Fix for p/c filters in scan api

Consume the entire weight and pre compute the DocIdSets for all segments instead of keeping the weight around and build a DocIdSet when a segment is being processed. This fixes issues where the has_child / has_parent filter produce no results or errors on subsequent scan requests.

Also made CustomQueryWrappingFilter implement Releasable in order to cleanup the pre-computed DocIdSets.

Closes #4703