[SPARK-26352][SQL] join reorder should not change the order of output attributes#23303

Closed

rednaxelafx wants to merge 7 commits intoapache:masterfrom

rednaxelafx:fix-join-reorder

Commits on Dec 17, 2018

SPARK-26352: ReorderJoin should not change the order of columns
rednaxelafx
committed
Fix test failures: some test cases themselves are wrong
rednaxelafx
committed
Fix StarJoinCostBasedReorderSuite
rednaxelafx
committed
Move the redudant projection elimination logic from CBO-based join reorder to RemoveRedundantProject
rednaxelafx
committed
Fix RemoveRedundantProject
rednaxelafx
committed
Fix RemoveRedundantProject again: Union needs special handling to make sure all children have matching output attributes
rednaxelafx
committed
Remove the new optimization in RemoveRedundantProject to make this fix less risky
rednaxelafx
committed