final BitSet rightBits = BitSets.range(left.getRowType().getFieldCount(),
join.getRowType().getFieldCount());
if (bits.intersects(rightBits)) {
return;
}
final JoinInfo joinInfo = join.analyzeCondition();
if (!joinInfo.rightSet().equals(BitSets.range(aggregate.getGroupCount()))) {
// Rule requires that aggregate key to be the same as the join key.
// By the way, neither a super-set nor a sub-set would work.
return;
}