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ALTER TABLE
UPDATE 150000
DELETE 30000
ANALYZE
 pg_stat_force_next_flush
--------------------------

(1 row)

 relname | n_live_tup | n_dead_tup | vacuum_count | autovacuum_count | total_size
---------+------------+------------+--------------+------------------+------------
 orders  |     240000 |     180000 |            0 |                0 | 90 MB
(1 row)
