| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Josh Berkus <josh(at)agliodbs(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, pgsql-hackers(at)postgresql(dot)org, ITAGAKI Takahiro <itagaki(dot)takahiro(at)lab(dot)ntt(dot)co(dot)jp> |
| Subject: | Re: Remove xmin and cmin from frozen tuples |
| Date: | 2005-09-01 17:08:14 |
| Message-ID: | 2818.1125594494@sss.pgh.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Josh Berkus <josh(at)agliodbs(dot)com> writes:
>> THe only fundamental disadvantage that COPY labors under is having to
>> write WAL records. It might be interesting to do something similar to
>> the recent hacks for CREATE TABLE AS, so that a COPY into a table just
>> created in the current transaction would skip writing WAL and instead
>> fsync the table at the end.
> Yes, I thought we discussed doing this for empty tables -- it would be, per
> our tests, a +10% to +30% boost to COPY.
> But there was some problem the patch?
I have seen no such patch AFAIR.
regards, tom lane
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tom Lane | 2005-09-01 17:13:31 | Re: TODO item: set proper permissions on non-system schemas |
| Previous Message | Andrew Dunstan | 2005-09-01 17:03:33 | Re: TODO item: set proper permissions on non-system schemas |