Running .show database <DB name> policy sharding for an ADX cluster with V3 kusto engine returns the below result:

{
  "MaxRowCount": 750000,
  "MaxExtentSizeInMb": 1024,
  "MaxOriginalSizeInMb": 2048,
  "UseShardEngine": true,
  "ShardEngineMaxRowCount": 1048576,
  "ShardEngineMaxExtentSizeInMb": 8192,
  "ShardEngineMaxOriginalSizeInMb": 3072
}

What is the significance of the last four ShardEngine related json properties? The docs do not mention them.

CodePudding user response：

Properties whose names start with ShardEngine apply when UseShaedEngine is true, i.e. to tables/databases that are using the v3 engine. https://docs.microsoft.com/en-us/azure/data-explorer/engine-v3

Eventually, the second set of properties, that apply to the previous version of the engine, would be removed from the policy.