Re: generic copy options

From: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
To: Emmanuel Cecchet <manu(at)asterdata(dot)com>
Cc: Emmanuel Cecchet <Emmanuel(dot)Cecchet(at)asterdata(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: generic copy options
Date: 2009-09-17 14:03:00
Message-ID: 162867790909170703t288929dcw76ff8af777991985@mail.gmail.com
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2009/9/17 Emmanuel Cecchet <manu(at)asterdata(dot)com>:
> Pavel Stehule wrote:
>>>
>>> Well, I wonder how many users just upgrade psql vs upgrade the server. I
>>> was
>>> thinking that when users perform a database upgrade their application
>>> often
>>> remain the same and therefore the server needs to support the old syntax.
>>> Unless you are upgrading a machine where a bunch of psql-based scripts
>>> are
>>> running to update various remote Postgres instances with older versions,
>>> I
>>> would guess that it is unlikely that someone is going to upgrade psql and
>>> keep the old instance of the server on the same machine.
>>> I just wonder how many users are using a single psql to manage multiple
>>> server instances of different older versions.
>>>
>>
>> What application, that use current copy format for fast data import? I
>> thing, so doing incompatible changes of copy statement syntax is very
>> bad idea.
>>
>
> The old syntax is still supported in both psql and the server but I am not
> sure how many applications are relying on psql to perform a copy operation
> (actually a \copy).

who knows. \copy is very useful thinks and people who imports data
from local use it. I am sure, so this feature is often used, mainly by
unix dba.

regards
Pavel

>
> manu
>

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