.alter-merge table policy merge command

Applies to: ✅ Azure Data Explorer

Changes the table's merge policy. The merge policy defines if and how Extents (Data Shards) should get merged.

Permissions

You must have at least Table Admin permissions to run this command.

Syntax

.alter-merge table TableName policy merge PolicyObject

Learn more about syntax conventions.

Parameters

Name Type Required Description
TableName string ✔️ The name of the table.
PolicyObject string ✔️ A serialized array of one or more JSON policy objects. For more information, see merge policy.

Example

Change a single property of the policy at the table level, retaining all other properties as before:

.alter-merge table [table_name] policy merge ```
{
    "MaxRangeInHours": 24
}```