SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 1) Function arrayIntersect (children 1) ExpressionList (children 2) Literal Array_[Array_[UInt64_1, UInt64_2], Array_[UInt64_1, UInt64_1]] Literal Array_[Array_[UInt64_2, UInt64_1], Array_[UInt64_1, UInt64_1]]