limit of 16 on arguments to functons

hi,
I came across this information in http://www.ch.postgresql.org/news.html:
The maximum number of keys in an index or arguments to a function is now
configurable, with default limit of 16, rather than the old hard-coded limit
of 8.

We are porting our database from sybase to postgre 7.1 which involves
functions having 24 arguments and more.Is there any provision to configure
the number of  arguments to a function, in postgres, to accept more than 16
arguments?
thanks
varadha


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