SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function COUNTDistinct (children 1)
     ExpressionList (children 1)
      Identifier data
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier compression_codec_multiple_with_key
   Function less (children 1)
    ExpressionList (children 2)
     Identifier id
     Literal UInt64_222
