New pg_lsn type doesn't have hash/btree opclasses

From: Andres Freund <andres(at)2ndquadrant(dot)com>
To: pgsql-hackers(at)postgresql(dot)org, Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Craig Ringer <craig(at)2ndquadrant(dot)com>
Subject: New pg_lsn type doesn't have hash/btree opclasses
Date: 2014-05-06 07:14:32
Message-ID: 20140506071432.GM17909@awork2.anarazel.de
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Hi,

Craig just mentioned in an internal chat that there's no btree or even
hash opclass for the new pg_lsn type. That restricts what you can do
with it quite severely.
Imo this should be fixed for 9.4 - after all it was possible unto now to
index a table with lsns returned by system functions or have queries
with grouping on them without casting.

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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