| From: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
|---|---|
| To: | Dev Kumkar <devdas(dot)kumkar(at)gmail(dot)com> |
| Cc: | Thomas Kellerer <spam_eater(at)gmx(dot)net>, pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: Unquoted column names fold to lower case |
| Date: | 2013-07-03 19:08:31 |
| Message-ID: | 20130703190831.GG3592@eldon.alvh.no-ip.org |
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| Lists: | pgsql-sql |
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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