SELECT syntax synopsis: column_definition?

From: Richard Broersma Jr <rabroersma(at)yahoo(dot)com>
To: SQL Postgresql List <pgsql-sql(at)postgresql(dot)org>
Subject: SELECT syntax synopsis: column_definition?
Date: 2007-08-21 19:34:27
Message-ID: 830878.14424.qm@web31803.mail.mud.yahoo.com
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Can any one give an example of the difference between a column_alias and a column_definition when
using a function in the FROM clause?

from the manual:
http://www.postgresql.org/docs/8.2/interactive/sql-select.html

"function_name ( [ argument [, ...] ] ) [ AS ] alias [ ( column_alias [, ...] | column_definition
[, ...] ) ]"

Regards,
Richard Broersma Jr.

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