Subject RE: [IB-Architect] UDF param passing issues
Author David Schnepper
And don't forget about isql/show.e & isql/extract.e

Additionally, it *is* more difficult to write a UDF that uses descriptors -
the disipline about how to use the memory space passed to the UDF in
the descriptor has to be there.


-----Original Message-----
From: Jim Starkey [mailto:jas@...]
Sent: Thursday, April 06, 2000 2:40 PM
Subject: Re: [IB-Architect] UDF param passing issues

At 05:12 PM 4/6/00 -0400, Doug Chamberlin wrote:
>At 4/6/00 05:00 PM (Thursday), David Schnepper wrote:
>>Actually, there is a way that a UDF can receive parameters "BY
>>It's yet another of those GDML features that work, but don't have SQL
>>syntax to
>>support them.
>I don't understand why the SQL syntax is relevant except in defining a UDF
>you would have to say "pass params by descriptor when using this UDF".
>Then, assuming the UDF is properly written to use the descriptors instead
>of the usual param passing mechanism, everything should work, right?

Somebody, long gone, thought it was more important to be SQL compliant
than useful. Happily, the current administration is more enlightened.

The modules you want are dsql/parse.y, dsql/pass1.c, and dsql/ddl.c .

I can't wait for Code Liberation Day.

Jim Starkey

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