Re: Documentation of Implicit Function Call /w Composite Types

"David Johnston" <polobo@yahoo.com> writes:
> The expression:
> (some_composite).calculated_field
> resolves to the function call:
> calculated_field(some_composite)

> I know I've seen it before, though whether in the docs or in e-mail I am
> unsure, but for the life of me browsing for it for about 10 minutes got me
> nowhere - and I am not sure how to construct a meaningful search which would
> be a secondary means to discover the information IMO.

In recent versions of the docs it's mentioned at the end of section
4.2.6 "Function Calls":
http://www.postgresql.org/docs/devel/static/sql-expressions.html#AEN1902

which links to some info down near the end of section 35.4.3:
http://www.postgresql.org/docs/devel/static/xfunc-sql.html#XFUNC-SQL-COMPOSITE-FUNCTIONS

            regards, tom lane