How does the maintenance mode purge_windows_history_days key work to purge the data

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)
• CA Unified Infrastructure Management On-Premise (Nimsoft / UIM)
• CA Unified Infrastructure Management SaaS (Nimsoft / UIM)

Issue/Introduction

How does this key work and what database attribute does it use if there is no "create_time" column?

Environment

• DX UIM 23.4CU6

Cause

• Guidance

Resolution

The purge_windows_history_days key defines the retention period for the maintenance_window_history table.

• Value of -1: Disables purging entirely; no records will be deleted.
  
  
• Positive Value (e.g., 30): Deletes records older than the specified number of days.

Note: The purge logic evaluates the end_time timestamp to determine record age, rather than the create_time.