Re: Select performance vs. mssql

* Bruno Wolff III <bruno@wolff.to> wrote:

<snip>

> This gets brought up a lot. The problem is that the index doesn't include
> information about whether the current transaction can see the referenced
> row. Putting this information in the index will add significant overhead
> to every update and the opinion of the developers is that this would be
> a net loss overall.

wouldn't it work well to make this feature optionally for each
index ? There could be some flag on the index (ie set at create
time) which tells postgres whether to store mvcc information.


cu
--
---------------------------------------------------------------------
 Enrico Weigelt    ==   metux IT service
  phone:     +49 36207 519931         www:       http://www.metux.de/
  fax:       +49 36207 519932         email:     contact@metux.de
---------------------------------------------------------------------
  Realtime Forex/Stock Exchange trading powered by postgresSQL :))
                                            http://www.fxignal.net/
---------------------------------------------------------------------