| From: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila(at)huawei(dot)com> |
| Cc: | simon(at)2ndquadrant(dot)com, 'Alvaro Herrera' <alvherre(at)2ndquadrant(dot)com>, noah(at)leadboat(dot)com, horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Performance Improvement by reducing WAL for Update Operation |
| Date: | 2013-01-29 10:22:43 |
| Message-ID: | 5107A2F3.5080605@vmware.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On 29.01.2013 11:58, Amit Kapila wrote:
> Can there be another way with which current patch code can be made better,
> so that we don't need to change the encoding approach, as I am having
> feeling that this might not be performance wise equally good.
The point is that I don't want to heap_delta_encode() to know the
internals of pglz compression. You could probably make my patch more
like yours in behavior by also passing an array of offsets in the new
tuple to check, and only checking for matches as those offsets.
- Heikki
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Simon Riggs | 2013-01-29 11:22:15 | Re: [sepgsql 2/3] Add db_schema:search permission checks |
| Previous Message | Magnus Hagander | 2013-01-29 10:15:41 | Re: pg_basebackup with -R option and start standby have problems with escaped password |