join nodes know which tables they could change
Merge branch 'piggyback_master' into selection_handler
set isFinal to 0 if there is a join for a table
fixed bug: select * works
removed debugging prints
Add util outputs and script to gitignore
free list* in piggyback for tableOids
Merge branch 'piggyback_master' of https://github.com/mpws2013n1/postgres into piggyback_master
fixed bug: base statistics do not overwrite values from selection with constant
Merge branch 'piggyback_master' into selection_handler
fixed segmentation fault (in client) for empty query results, e.g. for
explain statements
set isFinal = 0 for group node (having clauses)
added some pruning for fds
Merge remote-tracking branch 'origin/piggyback_master' into incrementalFD

Conflicts:
	src/backend/executor/execProcnode.c