SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function uniq (children 1)
     ExpressionList (children 1)
      Identifier URL
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test.hits
   Function in (children 1)
    ExpressionList (children 2)
     Identifier TraficSourceID
     Literal UInt64_7
