Details
Description
Currently, if the collection becomes empty after the initial check at the start the calculation of the characteristics about the shard key, and the supporting the index for the shard key is a unique index, the analyzeShardKey would return the following metrics instead of failing with an IllegalOperation error it would in the case where the index is not unique.
{ "numDocs" : NumberLong(0), "isUnique" : true, "numDistinctValues" : NumberLong(0), "mostCommonValues" : [ ], "monotonicity" : { "recordIdCorrelationCoefficient" : 0, "type" : "not monotonic" }, "avgDocSizeBytes" : NumberLong(0), "readDistribution" : { "sampleSize" : { "total" : NumberLong(0), "find" : NumberLong(0), "aggregate" : NumberLong(0), "count" : NumberLong(0), "distinct" : NumberLong(0) } }, "writeDistribution" : { "sampleSize" : { "total" : NumberLong(0), "update" : NumberLong(0), "delete" : NumberLong(0), "findAndModify" : NumberLong(0) } }, "ok" : 1, "$clusterTime" : { "clusterTime" : Timestamp(1686168499, 3549), "signature" : { "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="), "keyId" : NumberLong(0) } }, "operationTime" : Timestamp(1686168499, 3549) }
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