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Re: nil properties in Fetch Requests

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Re: nil properties in Fetch Requests

Subject: Re: nil properties in Fetch Requests
From: Charilaos Skiadas <email@hidden>
Date: Tue, 12 Jul 2005 12:18:29 -0500

On Jul 12, 2005, at 10:29 AM, Óscar Morales Vivó wrote:

On Jul 12, 2005, at 11:13 , mmalcolm crawford wrote:
If dateOfBirth or dateOfDeath is not set (that is, if it is nil in an instance), and $CALLERBIRTHDAY is non-nil, then the predicate does not match.

So just to be 100% sure: ANY predicate comparison of attributes where one or both of the operands is nil will always return false unless it's a direct comparison with nil?


Furthermore, is this behavior documented?
Haris


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Follow-Ups:

Re: nil properties in Fetch Requests
From: mmalcolm crawford <email@hidden>


References:  
  >[FOLLOWUP] nil properties in Fetch Requests, part 2 (From: Óscar Morales Vivó <email@hidden>)
  >nil properties in Fetch Requests (From: Óscar Morales Vivó <email@hidden>)
  >Re: nil properties in Fetch Requests (From: mmalcolm crawford <email@hidden>)
  >Re: nil properties in Fetch Requests (From: Óscar Morales Vivó <email@hidden>)




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