SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 1) Function bitmapAndCardinality (children 1) ExpressionList (children 2) Function bitmapBuild (children 1) ExpressionList (children 1) Literal Array_[UInt64_1, UInt64_2, UInt64_3] Function bitmapBuild (children 1) ExpressionList (children 1) Literal Array_[UInt64_3, UInt64_4, UInt64_5]