The $elemMatch value is considered indexable, causing the server to erroneously try to build index bounds for the "$size: 3" predicate.
> t = db.t
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test.t
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> t.drop()
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2014-03-21T14:16:28.601-0400 trying reconnect to 127.0.0.1:27017 (127.0.0.1) failed
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2014-03-21T14:16:28.602-0400 reconnect 127.0.0.1:27017 (127.0.0.1) ok
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true
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> t.ensureIndex({a: 1})
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{
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"createdCollectionAutomatically" : true,
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"numIndexesBefore" : 1,
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"numIndexesAfter" : 2,
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"ok" : 1
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}
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> t.find({a: {$elemMatch: {$size: 3, $gt: 2}}})
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2014-03-21T14:17:02.525-0400 DBClientCursor::init call() failed
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Error: error doing query: failed
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- is related to
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SERVER-12531 $not expression inside $elemMatch causes assertion error
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- Closed
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