SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function if (children 1)
     ExpressionList (children 3)
      Function like (children 1)
       ExpressionList (children 2)
        Identifier explain
        Literal \'%ReadType: InOrder%\'
      Literal \'Ok\'
      Function concat (children 1)
       ExpressionList (children 2)
        Literal \'Error: \'
        Identifier explain
   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 5)
                   ExpressionList (children 2)
                    Identifier timestamp
                    Identifier value
                   TablesInSelectQuery (children 1)
                    TablesInSelectQueryElement (children 1)
                     TableExpression (children 1)
                      TableIdentifier mytable
                   Function equals (children 1)
                    ExpressionList (children 2)
                     Identifier key
                     Literal UInt64_5
                   ExpressionList (children 1)
                    OrderByElement (children 1)
                     Identifier timestamp
                   Set
   Function like (children 1)
    ExpressionList (children 2)
     Identifier explain
     Literal \'%ReadType%\'
