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PostgreSQL 9.4 (100K records)

  1. Create table vacuum_table CREATE TABLE
  2. Insert 100000 records into vacuum_table INSERT 0 100000
  3. After insert 100000 records table size is: 5914624
  4. Check autovacuum: AUTOVACUUM is off
  5. Update table vacuum_table UPDATE 100000
  6. After update 100000 records table size is: 14032896
  7. Run long live transaction pid: 25211
  8. Run VACUUM FULL VACUUM
  9. After VACUUM FULL table size is: 5890048
  10. Killing long live transaction
  11. Run VACUUM FULL VACUUM
  12. After VACUUM FULL table size is: 5890048

PostgreSQL 9.3 (1M records)

  1. Create table vacuum_table CREATE TABLE
  2. Insert 1000000 records into vacuum_table INSERT 0 1000000
  3. After insert 1000000 records table size is: 58769408
  4. Check autovacuum: AUTOVACUUM is off
  5. Update table vacuum_table UPDATE 1000000
  6. After update 1000000 records table size is: 140017664
  7. Run long live transaction pid: 26649
  8. Run VACUUM FULL VACUUM
  9. After VACUUM FULL table size is: 58736640
  10. Killing long live transaction
  11. Run VACUUM FULL VACUUM
  12. After VACUUM FULL table size is: 58736640

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