Understanding PostgreSQL Query Execution Times: A Deep Dive into JSON Response Metrics

The code provided appears to be a JSON response from a database query, likely generated by PostgreSQL. The response includes various metrics such as execution time, planning time, and statistics about the query execution.

Here’s a breakdown of the key points in the response:

  1. Execution Time: 1801335.068 seconds (approximately 29 minutes)
  2. Planning Time: 1.012 seconds
  3. Triggers: An empty list ([])
  4. Scans:
    • Index Scan on table app_event with index app_event_idx_all_timestamp
    • Two workers were used for this scan: Worker 0 and Worker 1

The response also includes a graph showing the execution time of the query, but it is not rendered in this format.

There are no updates or suggestions provided in the response beyond the initial comment about removing the cast and changing the index, which did not affect performance.


Last modified on 2024-05-09