Re: Prepared statements considered harmful

On Aug 31, 2006, at 11:18 , mark(at)mark(dot)mielke(dot)cc wrote:

> I'm attempting to understand why prepared statements would be used for
> long enough for tables to change to a point that a given plan will
> change from 'optimal' to 'disastrous'.
>
> Wouldn't this require that the tables are completely re-written, or
> that their data is drastically updated? For my own tables, most of the
> data remains static for months on end. Data is accumulated. Small
> changes are made. I don't see why a prepared statement used over a
> 24 hour period would ever become disastrous.

Scenario: A web application maintains a pool of connections to the
database. If the connections have to be regularly restarted due to a
postgres implementation detail (stale plans), then that is a database
deficiency.

-M