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why provide cross type arithmetic operators

From: "ykhuang" <hyk(at)ruc(dot)edu(dot)cn>
To: pgsql-bugs(at)postgresql(dot)org
Subject: why provide cross type arithmetic operators
Date: 2008-01-22 03:14:25
Message-ID: fn3n3o$1g5r$1@news.hub.org (view raw or flat)
Thread:
Lists: pgsql-bugs
there are many cross type arithmetic operators, like int2 + int4, int8 + 
int4, I think these can be deleted. Here are the reasons, after deleted,
int2 + int4 will choose the operator int4 + int4, int8 + int4 choose int8 + 
int8, Is that ok? Thanks. 



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