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Re: quoting psql varible as identifier

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: quoting psql varible as identifier
Date: 2010-01-16 18:47:45
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Thu, Jan 14, 2010 at 8:46 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> I have yet to fully review the code but on a quick glance it looks reasonable.

On further review, it looks less reasonable.  :-(

The new PQescapeIdentConn function is basically a cut-up version of
PQescapeStringInternal, which seems like a reasonable foundation, but
it rips out a little too much - specifically:

1. the length argument,
2. the size_t return value,
3. the portion of the handling for incomplete multibyte characters
that prevents us from overrunning the output buffer on a maliciously
constructed (or unlucky) input string, and
4. some relevant comments.

I'm inclined to think we should put all of that stuff back, but
certainly #3 at a minimum.


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