Re: Memory Usage

"Nathan Barnett" <nbarnett@cellularphones.com> writes:
> I am having a small issue with PostgreSQL 7.0.3 on FreeBSD 4.2 Stable.  When
> I perform an update on a table with roughly 2 million rows, the postgres
> process starts eating up memory until it eventually uses up all of the
> memory and exits without finishing.  I have also seen the same thing happen
> in complex SELECT statements that I have run.  The update statement is as
> follows:

> UPDATE pages SET createdtime = NOW();

The now() function invocation leaks memory --- only a dozen or two bytes
per invocation, I think, but it'll still add up over that many rows.
You'd see the same sort of problem with function calls or operations on
any pass-by-reference datatype.

This is fixed for 7.1...

            regards, tom lane