tree 5bf62a9e441ca9a2773f637879b3705bccc91f9e
parent 8efd847dbe4c42c2e4788d0df7c1876a5294571f
author Dmitry Lychagin <dmitry.lychagin@couchbase.com> 1546923795 -0800
committer Dmitry Lychagin <dmitry.lychagin@couchbase.com> 1546996543 -0800

[ASTERIXDB-2505][COMP] Consolidate window operators rule

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
- Add optimizer rules that merge two window operators into one
- Improve existing optimizer rules to handle window operators
- Add tests for distinct aggregate in window operator

Change-Id: I5d0739d604d09f5445237d4fa3d56a2af8126bd7
Reviewed-on: https://asterix-gerrit.ics.uci.edu/3107
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Ali Alsuliman <ali.al.solaiman@gmail.com>