SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 2) Function mapPopulateSeries (alias res) (children 1) ExpressionList (children 2) Function array (children 1) ExpressionList (children 2) Function toInt64 (children 1) ExpressionList (children 1) Literal Int64_-10 Literal UInt64_2 Function array (children 1) ExpressionList (children 2) Function toInt64 (children 1) ExpressionList (children 1) Literal UInt64_1 Literal UInt64_1 Function toTypeName (children 1) ExpressionList (children 1) Identifier res