Re: BUG #5911: pg_notify() function only works when channel name is lower case

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Joshua McDougall" <josh(at)schemaverse(dot)com>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #5911: pg_notify() function only works when channel name is lower case
Date: 2011-03-03 16:24:53
Message-ID: 9171.1299169493@sss.pgh.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-bugs

"Joshua McDougall" <josh(at)schemaverse(dot)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

In response to

Responses

Browse pgsql-bugs by date

  From Date Subject
Next Message Robert Haas 2011-03-03 16:26:44 Re: can't build contrib/uuid-ossp
Previous Message Merlin Moncure 2011-03-03 16:22:16 Re: BUG #5911: pg_notify() function only works when channel name is lower case