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Type:
Improvement
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Status: Closed
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Priority:
Minor - P4
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Resolution: Fixed
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Affects Version/s: None
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Fix Version/s: 2.1.1
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Component/s: Aggregation Framework
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Labels:None
Doing a group without an _id or with a $ operator - returns the errmsg with the field name truncated to first char:
In the shell:
> db.test.aggregate({$group: {bad_id: 1}})
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{
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"errmsg" : "exception: the group aggregate field bmust be defined as an expression inside an object",
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"code" : 15951,
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"ok" : 0
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}
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>
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>
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> db.test.aggregate({$group: {$bad_op: 1}})
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{
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"errmsg" : "exception: the group aggregate field name $ cannot be an operator name",
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"code" : 15950,
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"ok" : 0
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}
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