Emits a join as the engine needs it (emitJoinRelation), then a select that gives the columns their order and drops the temporary ones.
emitJoinRelation
select
The join must be valid for its input schemas.
Emits a join as the engine needs it (
emitJoinRelation), then aselectthat gives the columns their order and drops the temporary ones.The join must be valid for its input schemas.