tree 7e6d2b4c0dca7a944bbd6c6121665f3011d6297b
parent fa03c20ff82894054d397d6efe862ff7aa96e36d
author Xikui Wang <xkkwww@gmail.com> 1532063769 -0700
committer Xikui Wang <xkkwww@gmail.com> 1532106312 -0700

[ASTERIXDB-2412][COMP] ExtractCommonExpressionsRule fix

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

Details:
ExtractCommonExpressionsRule should not be applied to JOIN by using
Cartesian Product + SELECT since it will add extract overhead. Also,
blindly adding SELECT without checking GROUP-BY and other possible OPs
in between could cause type inference error.

Change-Id: I20e1fa161c42e0494c7ca587b8bffdc80d656058
Reviewed-on: https://asterix-gerrit.ics.uci.edu/2770
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: Dmitry Lychagin <dmitry.lychagin@couchbase.com>