CLEAR_DATA_COLLECTOR

Clears all memory and disk records from Data Collector tables and logs, and resets collection statistics in system table DATA_COLLECTOR.

Clears all memory and disk records from Data Collector tables and logs, and resets collection statistics in the DATA_COLLECTOR system table.

This is a meta-function. You must call meta-functions in a top-level SELECT statement.

Behavior type

Volatile

Syntax

CLEAR_DATA_COLLECTOR( [ 'component' ] )

Arguments

component

Component to clear. If not specified, the function clears memory and disk records for all components.

Query DATA_COLLECTOR to get a list of components:

=> SELECT DISTINCT component, description FROM DATA_COLLECTOR 
   WHERE component ILIKE '%Depot%' ORDER BY component;
   component    |          description
----------------+-------------------------------
 DepotEvictions | Files evicted from the Depot
 DepotFetches   | Files fetched to the Depot
 DepotUploads   | Files Uploaded from the Depot
(3 rows)

Privileges

Superuser

Examples

By default, the function clears data collection for all components:

=> SELECT CLEAR_DATA_COLLECTOR();
 CLEAR_DATA_COLLECTOR
----------------------
 CLEAR
(1 row)

To clear memory and disk records for only one component, specify the component:

=> SELECT CLEAR_DATA_COLLECTOR('ResourceAcquisitions');
 CLEAR_DATA_COLLECTOR
----------------------
 CLEAR
(1 row)