Horton

Re: Covering Indexes

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Csaba Nagy <ncslists@googlemail.com>
Cc: Jeff Janes <jeff.janes@gmail.com>, "David E. Wheeler" <david@justatheory.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2012-07-06T14:54:43Z
Lists: pgsql-hackers 
Csaba Nagy <ncslists@googlemail.com> writes:
> Why not restrict it to UNIQUE indexes ?

What benefit would such a restriction provide?  AFAICS it doesn't make
implementation any easier.

			regards, tom lane