- PostgreSQL
- SELECT (fetched)
- Count of rows fetched by queries to the database
- SELECT (returned)
- Count of rows returned by queries to the database
- INSERT
- Count of rows inserted to the database
- UPDATE
- Count of rows updated in the database
- DELETE
- Count of rows deleted in the database
- Active Sessions
- Count of currently running queries
- Idle Sessions
- Count of connections to the database that are not currently in use
- Idle Sessions in transaction
- Count of connections that have begun a transaction but not yet completed while not actively doing work
- Idle Sessions in transaction (aborted)
- Count of connections that have begun a transaction but did not complete and were forcefully aborted before they could complete
- Lock tables
- Active locks on the database
- Checkpoints requested and timed
- Count of checkpoints requested and scheduled
- Checkpoint sync time
- Time synchronising checkpoint files to disk
- Checkpoint write time
- Time to write checkpoints to disk