Re: Fixing row comparison semantics - Mailing list pgsql-hackers

From Christopher Kings-Lynne
Subject Re: Fixing row comparison semantics
Date
Msg-id 43AD140E.80405@familyhealth.com.au
Whole thread Raw
In response to Fixing row comparison semantics  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Fixing row comparison semantics  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
> I've gotten interested again in the issue of row comparisons, eg
>     (a, b, c) >= (1, 2, 3)
> We've discussed this before, the most comprehensive thread being
> http://archives.postgresql.org/pgsql-performance/2004-07/msg00188.php
> but nothing's gotten done.  Unless someone's already working on this
> I think I will take it up.

Can someone explain to me how:

(a, b) < (1, 2)

is different to

a < 1 and b < 2

?

Chris


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