Explain EXPLAIN SYNTAX (children 2)
 Set
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 2)
     Identifier color_id
     Function row_number (alias rn) (children 1)
      ExpressionList
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier t
    ExpressionList (children 2)
     OrderByElement (children 1)
      Identifier color_id
     OrderByElement (children 1)
      Identifier rn
