Antwort How to upgrade from Postgres 11 to 15? Weitere Antworten – How to upgrade postgres 12 to 15

How to upgrade from Postgres 11 to 15?
Two methods are available for this migration:

  1. • Database dump/restore.
  2. • The pg_upgrade tool.
  3. Dump the PostgreSQL12. x database.
  4. Restore the dump in a PostgreSQL 15. x database.
  5. Run VACUUM ANALYZE command to reorganize PostgreSQL indices.

Fortunately, there is a more efficient method: upgrading with –link and –method=upgrade . Here the old PostgreSQL 11 database is not kept, but converted “in-place” to a PostgreSQL 13 database.Upgrading PostgreSQL in Windows

  1. Install the New Version of PostgreSQL. Before you embark on the upgrade journey, make sure you have the new version installed.
  2. Stop Both PostgreSQL Services.
  3. Configure Authentication.
  4. Create a New Windows User.
  5. Manage File Security.
  6. Open Console with User "postgres"
  7. Execute pg_upgrade.
  8. Clean Up.

How do you update PostgreSQL : These are the steps to perform an upgrade with pg_upgrade:

  1. Optionally move the old cluster.
  2. For source installs, build the new version.
  3. Install the new PostgreSQL binaries.
  4. Initialize the new PostgreSQL cluster.
  5. Install extension shared object files.
  6. Copy custom full-text search files.
  7. Adjust authentication.
  8. Stop both servers.

Why upgrade to Postgres 15

PostgreSQL 15 contains many new features and enhancements, including: Support for the SQL MERGE command. Selective publication of tables' contents within logical replication publications, through the ability to specify column lists and row filter conditions.

How to upgrade Postgres 12 to 16 : Migrating to a new major version

  1. Create a new database with the desired version.
  2. Disable or suspend any applications that write to your existing database.
  3. Take a backup of your existing database.
  4. Restore the backup to your new database.
  5. Point all of your applications at the new database.

Run all commands as root or via sudo.

  1. Install Percona Distribution for PostgreSQL 15 packages.
  2. Stop the postgresql service.
  3. Run the database upgrade.
  4. Start the postgreqsl service.
  5. Check the postgresql version.
  6. After the upgrade, the Optimizer statistics are not transferred to the new cluster.


Updating a PostgreSQL cluster consists of six steps:

  1. Database backup.
  2. Installation of PostgreSQL 15.
  3. Updating data in the database directory.
  4. Starting the Patroni cluster.
  5. Post-installation check.
  6. Cleaning up old data.

How to upgrade postgres 12 to 14

Perform the upgrade

  1. Update and install packages sudo apt-get update sudo apt-get install postgresql-14 postgresql-server-dev-14.
  2. Halt the old server sudo systemctl stop postgresql.service.

I ran the code run on PostgreSQL v12 in Azure Database for PostgreSQL Flexible Server. Test run on PostgreSQL v15: The same piece of code was run on PostgreSQL v15 in Azure Database for PostgreSQL Flexible Server. We can clearly see that the code snippet on PostgreSQL 15 is 5x faster than PostgreSQL 12.The PostgreSQL community released version 15 (stable) in October 2022.

Run all commands as root or via sudo.

  1. Install Percona Distribution for PostgreSQL 16 packages.
  2. Set up Percona Distribution for PostgreSQL 16 cluster.
  3. Log is as the postgres user.
  4. Set up locale settings.
  5. Initialize cluster with the new data directory.
  6. Stop the postgresql 15 service.
  7. Run the database upgrade.

Is PostgreSQL 15 stable : The PostgreSQL community released version 15 (stable) in October 2022.

Is postgres 15 faster : I ran the code run on PostgreSQL v12 in Azure Database for PostgreSQL Flexible Server. Test run on PostgreSQL v15: The same piece of code was run on PostgreSQL v15 in Azure Database for PostgreSQL Flexible Server. We can clearly see that the code snippet on PostgreSQL 15 is 5x faster than PostgreSQL 12.