SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Identifier x
    Identifier txt
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier 02540_date
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier txt
     Literal \'CAST(0 as UInt32)\'
