.alter ingestion time policy
Enable or disable a table's ingestion time policy. Azure Data Explorer can add an optional policy for tables to create a hidden datetime column in the table, called $IngestionTime. Whenever new data is ingested, the time of ingestion is recorded in the hidden column.
Syntax
.alter table TableName policy ingestiontime [true|false]
.alter tables (TableName, ...) policy ingestiontime [true|false]
Arguments
TableName - Specify the name of the table.
Examples
To enable the policy:
.alter table table_name policy ingestiontime true
To disable the policies of multiple tables:
.alter tables (table1, table2) policy ingestiontime false