Merge pull request #2738 from MicrosoftDocs/main638938983804229170sync_temp

For protected branch, push strategy should use PR and merge to target branch method to work around git push error

Author: learn-build-service-prod[bot]

data-explorer/kusto/query/external-table-function.md

@@ -30,6 +30,8 @@ To accelerate queries over external delta tables, see [Query acceleration policy
 |--|--|--|--|
 | *TableName* | `string` |  :heavy_check_mark: | The name of the external table being queried. Must reference an external table of kind `blob`, `adl`, or `sql`.|
 | *MappingName* | `string` | | A name of a mapping object that maps fields in the external data shards to columns output.|
+| *MaxAgeOverride* | `TimeSpan` | | When [Query Acceleration Policy](../management/query-acceleration-policy.md) is enabled, override the policy's [MaxAge](../management/alter-query-acceleration-policy-command.md) property for this query. If you use this property, the external table returns accelerated data if the last index refresh time is greater than @now - MaxAgeOverride. Minimum: 1s|
+
 
 ## Authentication and authorization