This change introduces a new rule to merge disjunct equality
predicates into an IN predicate. As with every rule being applied
bottom up, the rule merges the leaf OR predicates into an in predicate
and subsequently merges the OR predicate to the existing IN predicate
It will also merge two compatible IN predicates into a single IN
predicate.
Patch also addresses review comments to
normalize the binary predicates and testcases for the same.
binary predicates of the form constant <op> non constant are normalized
to non constant <op> constant
Change-Id: If02396b752c5497de9a92828c24c8062027dc2e2
Reviewed-on: http://gerrit.cloudera.org:8080/7110
Reviewed-by: Alex Behm <alex.behm@cloudera.com>
Tested-by: Impala Public Jenkins
536a0612ac