On Fri, Feb 18, 2011 at 9:35 PM, Bruce Momjian br...@momjian.us wrote:
Was this implemented? Is it a TODO?
It's not entirely clear to me that there's a meaningful win here.
Speeding up COPY is already on the TODO list, with this link:
Robert Haas wrote:
On Fri, Feb 18, 2011 at 9:35 PM, Bruce Momjian br...@momjian.us wrote:
Was this implemented? ?Is it a TODO?
It's not entirely clear to me that there's a meaningful win here.
Speeding up COPY is already on the TODO list, with this link:
Was this implemented? Is it a TODO?
---
Heikki Linnakangas wrote:
I'm reviving the effort I started a while back to make COPY faster:
http://archives.postgresql.org/pgsql-patches/2008-02/msg00100.php
Heikki Linnakangas heikki.linnakan...@enterprisedb.com writes:
Ok. If we have to, we can keep that, it just requires more
programming. After searching for a \n, we can peek at the previous byte to
check if it's a backslash (and if it is, the one before that to see if it's
a backslash too, and
I'm reviving the effort I started a while back to make COPY faster:
http://archives.postgresql.org/pgsql-patches/2008-02/msg00100.php
http://archives.postgresql.org/pgsql-patches/2008-03/msg00015.php
The patch I now have is based on using memchr() to search end-of-line.
In a nutshell:
* we
Heikki Linnakangas heikki.linnakan...@enterprisedb.com writes:
* we perform possible encoding conversion early, one input block at a
time, rather than after splitting the input into lines. This allows us
to assume in the later stages that the data is in server encoding,
allowing us to
On 26/08/10 22:16, Tom Lane wrote:
Heikki Linnakangasheikki.linnakan...@enterprisedb.com writes:
* instead of the byte-at-a-time loop in CopyReadLineText(), use memchr()
to find the next NL/CR character. This is where the speedup comes from.
That seems like the speedup, if any, would be
Heikki Linnakangas heikki.linnakan...@enterprisedb.com writes:
On 26/08/10 22:16, Tom Lane wrote:
I think this is likely to break apps that have worked for years. I
can't get excited about doing that in return for an 0-10% speedup
that might only materialize on some platforms. If the numbers
