Re: BUG #5911: pg_notify() function only works when channel name is lower case - Mailing list pgsql-bugs

From Josh
Subject Re: BUG #5911: pg_notify() function only works when channel name is lower case
Date
Msg-id 4D6FC4B2.2090109@schemaverse.com
Whole thread Raw
In response to Re: BUG #5911: pg_notify() function only works when channel name is lower case  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-bugs
Thank you both for clearing that up (and doing so quite quickly!).
The behavior makes complete sense now that I understand what is
happening here behind the scenes.

Regards,
Josh

On 3/3/2011 11:24 AM, Tom Lane wrote:
> "Joshua McDougall"<josh@schemaverse.com>  writes:
>> When using the pg_notify(text,text) function, the channel name MUST be lower
>> case otherwise the message does not go through.
> It's not clear to me that this is a bug.  The argument of NOTIFY is a
> SQL identifier, which is folded to lower case by the lexer if not
> double-quoted, but the argument of pg_notify is a string constant which
> is a different matter altogether.
>
> We could have pg_notify lowercase its argument at runtime, but then
> we'd have to introduce quoting rules, so that you could do
>
>     select pg_notify('"IntentionallyMixedCase"', '...');
>
> This isn't a lot clearer than the current behavior, and it definitely
> wouldn't be backwards compatible.  So I'm inclined to leave it alone.
>
>             regards, tom lane

pgsql-bugs by date:

Previous
From: Jakub Ouhrabka
Date:
Subject: Re: Corrupted index on 9.0.3 streaming hot standby
Next
From: Robert Haas
Date:
Subject: Re: BUG #5863: help message report 5433 as default port