SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function mergeTreeIndex (children 1)
       ExpressionList (children 5)
        Function currentDatabase (children 1)
         ExpressionList
        Literal \'t_mt_params\'
        Function equals (children 1)
         ExpressionList (children 2)
          Identifier with_marks
          Literal UInt64_1
        Function equals (children 1)
         ExpressionList (children 2)
          Identifier with_minmax
          Literal UInt64_1
        Function equals (children 1)
         ExpressionList (children 2)
          Identifier non_existing_param
          Literal UInt64_1
