give correct List* to LookForFilterWithEquality in case T_Agg, still in a comment because it does not work completely
Merge branch 'piggyback_master' into selection_handler
removed selection handling from AggState because table oid is not known
Merge branch 'piggyback_master' of https://github.com/mpws2013n1/postgres into piggyback_master
Merge branch 'selection_handler' into piggyback_master