http://www.ryannitz.org/tech-notes/2009/07/29/monogodb-document-missing-field/ Miscellaneous technology examples and notes Tue, 23 Nov 2010 17:22:23 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://www.ryannitz.org/tech-notes/2009/07/29/monogodb-document-missing-field/comment-page-1/#comment-4354 aah Wed, 03 Nov 2010 17:59:43 +0000 http://ryan-nitz.com/tech-notes/?p=188#comment-4354 Just happened across this page. The queries here will count documents where the field exists, but is set to null. I think you need to use the (recent?) predicate "exists?" to actually tell if the document has field X. Just happened across this page. The queries here will count documents where the field exists, but is set to null. I think you need to use the (recent?) predicate “exists?” to actually tell if the document has field X.

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