E.21. Postgres Pro Enterprise 12.9.1
Release date: 2021-12-20
E.21.1. Overview
This release is based on PostgreSQL 12.9 and Postgres Pro Enterprise 12.8.1. All changes inherited from PostgreSQL 12.9 are listed in PostgreSQL 12.9 Release Notes. As compared with Postgres Pro Enterprise 12.8.1, this version also provides the following changes:
Fixed pg_dump to handle 64-bit XID statistics correctly, which is important when upgrading Postgres Pro Enterprise using pg_upgrade. Previously, values over 232 in XID statistics were incorrectly transferred, which led to the launch of autovacuum to prevent transaction ID wraparound.
Fixed an issue with an upgrade of Postgres Pro Enterprise 9.6 cluster to the current major version using pg_upgrade. Previously, it incorrectly converted free space maps of tables larger than 4 TB.
Dropped support for the sr_plan extension.
Upgraded mamonsu to version 3.1.0. Notable changes are as follows:
A new option for
bootstrapis added. With this option, if-dbnameis not explicitly specified, its value will be automatically set to the database name defined in the[postgres]section of the mamonsu configuration file.A critical issue is fixed that could arise when the
bootstrapstep was skipped. In this case, although a user can work with mamonsu under superuser permissions, the specialmamonsuschema is not created, but after creating the auxiliary extension pg_buffercache in any other schema, running mamonsu resulted in errors “ERROR: relation "mamonsu.pg_buffercache" does not exist...”.
Forbade access to temporary namespaces from autonomous transactions to ensure predictable behavior.
Added support for ALT Linux 10.
Changed the minimum supported Windows versions to Windows 10 and Windows Server 2012 R2.
Fixed a pg_probackup issue with archiving WAL from a directory outside of the data directory. Previously, multi-threaded and batch optimizations of
archive-pushprevented such archiving; now it is possible to archive WAL from any directory, but if it is outside of the data directory, multi-threaded and batch optimizations are automatically turned off.Fixed pg_dumpall to avoid using an insecure search path.
Upgraded pgpro_pwr. Major enhancements are as follows:
Added the Load distribution section to the report, which shows load distribution of different resources (for example, total time or shared blocks written) for heavily loaded objects, such as databases, applications, hosts, or users, in graphics, as stacked bar charts.
Added the Session statistics by database and WAL statistics report tables, based on new views and fields made available in Postgres Pro 14.
Deprecated
WAITLSNcommand.Leveraged sparse file functionality in Windows for CFS, which optimizes on-disk size of
*.cfmfiles, up to 1MB each.
E.21.2. Migration to Version 12.9.1
If you are upgrading from a Postgres Pro Enterprise release based on the same PostgreSQL major version, it is enough to install the new version into your current installation directory.
If you have previously migrated to Postgres Pro Enterprise 12.7.1 or lower, you must run the REINDEX command to rebuild GIN indexes.
If you have previously migrated from Postgres Pro Enterprise versions 11 or 10, you must run the REINDEX command to rebuild B-tree indexes, except for unique, covering and system indexes. If you are migrating from these versions now, rebuilding such indexes is also recommended.
If you are upgrading from Postgres Pro Enterprise versions 12.6.x or lower and take PTRACK backups using pg_probackup, retake a full backup after upgrade.
To migrate from PostgreSQL, as well as Postgres Pro Standard or Postgres Pro Enterprise based on a previous PostgreSQL major version, see the migration instructions for version 12.