Manually migrate PostgreSQL visualizations to lens in current Kibana version 8.4.0 itself.

Preparation of data for testing

• Use sample_event.json / setup live instance using docker / mock data using mock server to populate dashboards

Migration stats

Note: One visualization is migrated to the lens.

Dashboard : [Logs PostgreSQL] Overview

• Migrate 2 visualizations to the lens.
  • [O11y][PostgreSQL] Lens migration for Overview dashboard visualizations to Kibana version 8.4.0 #5747

Dashboard : [Logs PostgreSQL] Query Duration Overview

• Migrate 1 visualizations to the lens.
  • [O11y][PostgreSQL] Lens migration for Query Duration Overview visualizations to Kibana version 8.4.0 #5749

Dashboard : [Metrics PostgreSQL] Database Overview

• Migrate 12 visualizations to the lens and 1 visualization to new control panels.
  • [O11y][PostgreSQL] Lens migration for Database Overview visualizations to Kibana version 8.4.0 #5748

Verification and Validation

• Verification of functionality remains the same after migration in Kibana
• Verification of data count of after-migrated visualization with before-migrated visualization in Kibana
• Verification of Dashboard are not distorted in supported Kibana version (8.4.0)

Identified Issues

• [O11y][PostgreSQL] Add label in Y-axis for Database Overview dashboard panels #5797