https://www.postgresql.org/docs/13/release-13.html
1. A big performance leap from 10 to 11. No much difference between 11 and 12 in terms of performance
2. Vacuum, Security and Consistency, Partition-wise join
3. Vacuum
- performance for parallel vacuum of indexes
- Auto vacuum for append-only transacitons
4. Security and Consistency
- libpq channel binding
* stop man in the middle attacks
* Only for SCRAM authentication
- New capability for pg_catcheck
* tool for detect the catalog corruption
5. partition-wise join
6. logical replication for partitioned table. from partitioned to non-partitioned and vice versa
7. Backup manifests. part of pg_backbackup.
- new tool: pg_verifybackup - read manifects and verify the backups
8.Monitoring
Allow EXPLAIN, auto_explain, autovacuum, and pg_stat_statements to track WAL usage statistics
9.General Performance
Allow hash aggregation to use disk storage for large aggregation result sets
PPAS
- Partition automation: automatically create partitions when needed without locking
- Interval partition
- Automatic partition for LIST. When enabled, inserting a value not in the initial list, a new partition will be created to accommodate the new value
- Automatic HASH partitioning: PARTITIONS <number> STORE IN <tablespaces>. HASH would be distributed automatically across the specified tablespaces
- EDB*Loader. If any duplicate row, the operation can be configured not to abort but record the duplicated one into BAD file
- Add more Oracle-compatible features
来源：oschina
链接：https://my.oschina.net/zhiyonghe/blog/4471176