SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 2) Identifier val Function in (children 1) ExpressionList (children 2) Identifier val Literal Tuple_(UInt64_1, UInt64_3) TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier lc_00688