Monitoring the progress of commands

PostgreSQL 14 now has a growing list of commands that have a "progress bar" – in other words, they provide information to show intermediate progress information for active commands.

Getting ready

Using the earlier recipes, identify the active processes that concern you:

SELECT pid, query
FROM pg_stat_activity
WHERE state = 'active';

If the query column indicates that they are one of the following actions, then we can look at detailed progress information for them:

• Maintenance commands: ANALYZE, VACUUM, VACUUM FULL/CLUSTER
• Index commands: CREATE INDEX, REINDEX
• Backup/replication: BASE BACKUP
• Data load/unload: COPY

At this time, SELECT statements don't provide detailed progress information.

How to do it…

Each type of command has specific progress information, so you must look in the view that's appropriate to the type of command.

All commands show...