Antwort How do you UPDATE PostgreSQL? Weitere Antworten – How to UPDATE version of PostgreSQL

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.

Summary

  1. Use the UPDATE statement to update data in one or more columns of a table.
  2. Specify a condition in a WHERE clause to determine which rows to update data.
  3. Use the RETURNING clause to return the updated rows from the UPDATE statement.

In order to reload the PostgreSQL configuration without interrupting the database service, you simply need to type sudo systemctl reload postgresql in the command line. This command tells the system to load the latest configuration changes.

How to upgrade PostgreSQL 13 to 14 : On Red Hat Enterprise Linux and derivatives using yum

  1. Install Percona Distribution for PostgreSQL 14 packages.
  2. Set up Percona Distribution for PostgreSQL 14 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 13 service.
  7. Run the database upgrade.

How do I upgrade to PostgreSQL 14

High-Level pg_upgrade upgrade steps include:

  1. Install PostgreSQL 14 binaries.
  2. Initialize PostgreSQL cluster.
  3. Install extensions.
  4. Execute pg_upgrade with -c option (Consistency check)
  5. Execute pg_upgrade and review logs.
  6. Validation of data/objects.

How to upgrade Postgres 14 to 16 : For Debian/Ubuntu

# Install the latest version of PostgreSQL. Verify that your server now proudly hosts both PostgreSQL 14 and PostgreSQL 16 using the pg_lsclusters command. Stop the PostgreSQL 16 cluster to prepare for the upgrade. Monitor the process, and upon success, confidently remove the older version.

UPDATE changes the values of the specified columns in all rows that satisfy the condition. Only the columns to be modified need be mentioned in the SET clause; columns not explicitly modified retain their previous values.

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 refresh a database

This process is outlined below:

  1. Visit your target sandbox on the Environment Details page, and click the Maintain > Move database menu option.
  2. Select the Refresh database option and choose your source environment.
  3. Note the warnings and review the list of data elements that aren't copied from the source environment.

General Guidelines For PostgreSQL Table Updates

  1. It is faster to create a new table from scratch than to update every single row.
  2. Table constraints and indexes heavily delay every write.
  3. Adding a nullable column without a default value is a cheap operation.
  4. Data stored in TOAST is not rewritten when the row is updated.

Already here we can see that Postgres 14 does much better in the initial data load. As you can see, the throughput of Postgres 14 at 5000 active connections is about 20% higher. At 10,000 active connections the improvement is 50% over Postgres 13, and at lower connection counts you can also see consistent improvements.

Upgrade Postgres 10 via pg_upgrade

  1. Install PostgreSQL 14 binaries.
  2. Initialize PostgreSQL cluster.
  3. Install extensions.
  4. Execute pg_upgrade with -c option (Consistency check)
  5. Execute pg_upgrade and review logs.
  6. Validation of data/objects.

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.

How to upgrade PostgreSQL version 15 to 16 : 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.

How to upgrade PostgreSQL from 14 to 15

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.


15.4. Upgrading

  1. If making a backup, make sure that your database is not being updated.
  2. Shut down the old server: pg_ctl stop.
  3. If restoring from backup, rename or delete the old installation directory.
  4. Install the new version of PostgreSQL as outlined in Section 15.5.
  5. Create a new database cluster if needed.

The PostgreSQL Global Development Group releases a new major version containing new features about once a year.

How to upgrade Postgres 9.6 to 12 : Upgrade PostgreSQL 9.6 data files to PostgreSQL 12

  1. Install PostgreSQL 12 and initialize the new database cluster.
  2. Install any custom shared object files that were used by the old cluster and adjust authentication.
  3. Stop Jira and both PostgreSQL servers.