May 2017
Beginner
416 pages
10h 37m
English
Content preview from Mastering PostgreSQL 9.6
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Tracking vaccum progress
For many years, people have asked for a progress tracker for vacuum. Finally, PostgreSQL 9.6 makes this wish come true by introducing a new system view. Here is how it works:
postgres=# SELECT * FROM pg_stat_progress_vacuum ;[ RECORD 1 ]+pid | 29546datid | 67535datname | testrelid | 16402phase | scanning heapheap_blks_total | 6827heap_blks_scanned | 77heap_blks_vacuumed | 0index_vacuum_count | 0max_dead_tuples | 154num_dead_tuples | 0
PostgreSQL will provide detailed information about ongoing vacuum processes so that people can track the progress of this vital operation.
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