SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function concat (children 1)
     ExpressionList (children 2)
      Literal \'Unsorted ORDER BY key, dt LIMIT BY key, val: \'
      Function trimBoth (children 1)
       ExpressionList (children 2)
        Identifier explain
        Literal \' \'
   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 PIPELINE\'
               Literal \'\'
               Subquery (children 1)
                SelectWithUnionQuery (children 1)
                 ExpressionList (children 1)
                  SelectQuery (children 6)
                   ExpressionList (children 1)
                    Identifier key
                   TablesInSelectQuery (children 1)
                    TablesInSelectQueryElement (children 1)
                     TableExpression (children 1)
                      TableIdentifier 03701_unsorted
                   ExpressionList (children 2)
                    OrderByElement (children 1)
                     Identifier key
                    OrderByElement (children 1)
                     Identifier dt
                   Literal UInt64_1
                   ExpressionList (children 2)
                    Identifier key
                    Identifier val
                   Literal UInt64_10
   Function like (children 1)
    ExpressionList (children 2)
     Identifier explain
     Literal \'%LimitByTransform%\'
