On Tue, 2009-02-03 at 15:03 -0500, Chris Mayfield wrote:
> 1. Having to rewrite entire tables out to disk the first time I scan
> them, for example:
>
> CREATE TABLE t1 AS ...; -- writes 100 GB to disk
> CREATE INDEX i1 ON t1 ...; -- rewrites 100 GB to disk
>
> The main issue is setting the hint bits for each tuple, which IMO should
> initially be set for "CREATE TABLE AS" statements. To work around this
> for now, I modified heap_insert (in heapam.c) to mark tuples as
> committed when inserting them into newly added pages without WAL:
I'll take this for 8.5.
--
Simon Riggs www.2ndQuadrant.com
PostgreSQL Training, Services and Support