SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 2) Identifier number Function neighbor (children 1) ExpressionList (children 3) Function toString (children 1) ExpressionList (children 1) Identifier number Literal Int64_-5 Function concat (children 1) ExpressionList (children 2) Literal \'World \' Function toString (children 1) ExpressionList (children 1) Identifier number TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) Function numbers (children 1) ExpressionList (children 1) Literal UInt64_10