SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function identity (alias x) (children 1)
     ExpressionList (children 1)
      Identifier CharID
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier distributed_tbl
   Function and (children 1)
    ExpressionList (children 3)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier Date
       Function toDate (children 1)
        ExpressionList (children 1)
         Literal \'2016-03-01\'
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier User
       Literal UInt64_1486392
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier x
       Literal UInt64_0
