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WHERE [message #73379] Fri, 05 November 2010 06:44 Go to next message
Paul[3] is currently offline  Paul[3]
Messages: 18
Registered: September 2010
Junior Member
Now that -1 is a valid array index, does it make sense for WHERE to
return it as a null result?

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Re: WHERE [message #73459 is a reply to message #73379] Fri, 05 November 2010 09:46 Go to previous message
Michael Galloy is currently offline  Michael Galloy
Messages: 1114
Registered: April 2006
Senior Member
On 11/5/10 7:44 AM, Paul wrote:
> Now that -1 is a valid array index, does it make sense for WHERE to
> return it as a null result?

There is a /NULL keyword in IDL 8.0's WHERE that will do just that.

Mike
--
www.michaelgalloy.com
Research Mathematician
Tech-X Corporation

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