Date: Wed, 3 Jul 2013 15:08:31 -0400
From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Dev Kumkar <devdas.kumkar@gmail.com>
Cc: Thomas Kellerer <spam_eater@gmx.net>, pgsql-sql@postgresql.org
Subject: Re: Unquoted column names fold to lower case
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Dev Kumkar escribió:

> But what I am asking here is if an alias name is provided be it upper case,
> lower case, or a mix then shouldn't it be preserved as as it is given. All
> this talk is when alias names are unquoted, when quoted then its standard
> behavior as seen in other databases.

Aliases are treated just like any other identifier.  The downcasing
happens in the lexer (src/backend/parser/scan.l), which is totally
unaware of the context in which this is happening; so there's no way to
tweak the downcasing behavior for only aliases and not other
identifiers.

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


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