SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList (children 1)
      Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier compression_codec
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier id
     Literal UInt64_2
   ExpressionList (children 1)
    Identifier id
