From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Backslashes in string literals |
Date: | 2006-02-10 04:31:47 |
Message-ID: | 200602100431.k1A4VlY21635@candle.pha.pa.us |
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Lists: | pgsql-hackers |
Kevin Grittner wrote:
> >>> On Wed, Feb 1, 2006 at 10:50 am, in message
> <200602011650(dot)k11GoiU23147(at)candle(dot)pha(dot)pa(dot)us>, Bruce Momjian
> <pgman(at)candle(dot)pha(dot)pa(dot)us> wrote:
> >>
> >> (1) I couldn't figure out the best way to obtain a value for
> >> standard_conforming_strings in the psql version of the scanner.
> >
> > The proper way to do (1) is to call libpq's pqSaveParameterStatus()
> from
> > psql. Take a look for psql's session_username(). It is called
> > everytime the prompt is printed if the username is required. One
> great
> > feature of using pqSaveParameterStatus() is that it reads server
> packets
> > and keeps the tracked value updated for you without query overhead.
>
> My attempt to do as you suggest isn't working. It behaves as though
> the standard_strings() function I added to common.c is always returning
> false. (If I comment out the reference the function, and the else
> clause, I can get psql to work with the "on" state; otherwise, no joy.
> The back end is working fine in all my tests.) I tried to mimic the
> technique in the existing functions. Can you give me a clue where I'm
> going wrong?
OK, I got it working. The fix is to add GUC_REPORT to guc.c for
standard_conforming_strings. See the same flag on
session_authorization. That will cause libpq to see any changes made to
that variable. Sorry I didn't know that detail before.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
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