| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Chris Mayfield <cmayfiel(at)cs(dot)purdue(dot)edu> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Pet Peeves? |
| Date: | 2009-02-03 22:06:21 |
| Message-ID: | 1233698781.4500.204.camel@ebony.2ndQuadrant |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
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
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Christopher Browne | 2009-02-03 22:36:02 | Re: Pet Peeves? |
| Previous Message | Daniel Verite | 2009-02-03 21:50:14 | Re: LIKE with pattern containing backslash |