SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Asterisk
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             Function viewExplain (children 1)
              ExpressionList (children 3)
               Literal \'EXPLAIN\'
               Literal \'actions = 1\'
               Subquery (children 1)
                SelectWithUnionQuery (children 1)
                 ExpressionList (children 1)
                  SelectQuery (children 3)
                   ExpressionList (children 1)
                    Asterisk
                   TablesInSelectQuery (children 1)
                    TablesInSelectQueryElement (children 1)
                     TableExpression (children 1)
                      Subquery (children 1)
                       SelectWithUnionQuery (children 1)
                        ExpressionList (children 1)
                         SelectQuery (children 2)
                          ExpressionList (children 2)
                           Asterisk
                           Function plus (alias x) (children 1)
                            ExpressionList (children 2)
                             Identifier a
                             Identifier b
                          TablesInSelectQuery (children 1)
                           TablesInSelectQueryElement (children 1)
                            TableExpression (children 1)
                             TableIdentifier tab
                   ExpressionList (children 1)
                    OrderByElement (children 1)
                     Function multiply (children 1)
                      ExpressionList (children 2)
                       Identifier x
                       Identifier c
   Function like (children 1)
    ExpressionList (children 2)
     Identifier explain
     Literal \'%sort description%\'
