From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | "Greg Sabino Mullane" <greg(at)turnstep(dot)com> |
Cc: | pgsql-hackers(at)postgresql(dot)org, Jan Wieck <JanWieck(at)Yahoo(dot)com> |
Subject: | Re: Open items |
Date: | 2004-08-03 15:18:27 |
Message-ID: | 23244.1091546307@sss.pgh.pa.us |
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Lists: | pgsql-hackers |
"Greg Sabino Mullane" <greg(at)turnstep(dot)com> writes:
> Second, Jan promised at OSCON to fix up server-side prepare so it actually
> works even if you do not have the exact types to pass in. I presume you
> will then be able to do something like this:
> PREPARE mystatement AS SELECT * FROM pg_class WHERE relanem = $1
> which will make driver writers very, very happy.
Why would a driver writer care? He can use the Prepare protocol
message, which already can do the above --- and more to the point,
there's already a way for him to *find out* what types were resolved.
There is no way for the SQL-level PREPARE command to provide info
about how types were resolved, so I'm not in favor of hacking the
SQL command this way.
regards, tom lane
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