Horton

Re: WIP: extensible enums

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Andrew Dunstan <andrew@dunslane.net>, Dean Rasheed <dean.a.rasheed@gmail.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2010-10-23T23:59:06Z
Lists: pgsql-hackers 
On Oct 23, 2010, at 7:52 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> I still prefer the idea of not changing rows once they're
> inserted, though

Me too.  But I really dislike the idea of having a failure mode where we can't insert for no reason that the user can understand.  So I'm trying to think of a better option.

Why would you need to lock out type comparisons?  Locking out concurrent DDL seems sufficient.

...Robert