E.8. Postgres Pro Enterprise 13.11.1
Release Date: 2023-06-05
E.8.1. Overview
This release is based on PostgreSQL 13.11 and Postgres Pro Enterprise 13.10.2. All changes inherited from PostgreSQL 13.11 are listed in PostgreSQL 13.11 Release Notes. As compared with Postgres Pro Enterprise 13.10.2, this version also provides the following changes:
Optimized CFS garbage collector: reduced CPU costs and reads from disk during file analysis.
Added the unicode_nul_character_replacement_in_jsonb configuration parameter to replace
'\u0000'with the specified unicode character when calling a function processing JSONB.Improved performance of DDL operations on temporary tables. When
max_connectionsis high, the costs to acquire locks for the tables that are markedON COMMIT DELETE ROWSare now reduced due to the change of the locking mechanism.Added an operation log, which stores information about system events such as an upgrade, execution of pg_resetwal and so on, which is highly useful for vendor's technical support. Recording to the operation log is only done at the system level, and SQL functions are used to read it. (See Section 9.27.12.)
Fixed an issue in the connection pooler, which could cause backend termination if the client aborted the connection during authentication.
Fixed an issue with much larger CFS data files on the replica compared to the master. Now the replica writes the files in the same way as the master when consistent recovery state is reached.
Removed the deprecated configuration parameter
cfs_gc_verify_filefrompostgresql.conf. The configuration parametercfs_encryptionis deprecated and will be removed in a future release.Ended support for Ubuntu 18.04.
Upgraded mamonsu to version 3.5.3, which provides new features and bugfixes. Notable changes are as follows:
Removed the limitation that did not allow a user different from
mamonsuto read and edit the configuration fileagent.conf. Specifically, the pg_probackup plugin now works correctly when themamonsuuser owns the pg_probackup backup directory.Removed metrics that conflict native Zabbix agents from Zabbix configuration file being exported.
Fixed mamonsu choice of the default extension to collect statistics. Now when pgpro_stats and pg_stat_statements are both installed, pgpro_stats is correctly treated as the default one.
Added a check that the server where mamonsu WAL plugin runs is not in recovery.
Excluded
CREATE TABLESPACEandDROP TABLESPACEfrom multimaster replication. These commands should be executed separately on each peer node.Upgraded pg_hint_plan to version 1.3.8, which provides the
hints_anywhereparameter that allows to place hints anywhere in the query.Upgraded pg_probackup to version 2.6.4 Enterprise, which provides optimizations and bug fixes. Lower versions are incompatible with Postgres Pro Enterprise 13.11.1. Notable changes are as follows:
Included the
catchupcommand, which was previously provided only in a test mode, in the production delivery.Added optimizations for incremental backups that reduce disk read amount almost twice.
Improved error and warning messaging and unified the error message style.
Fixed issues and improved the reliability of CFS table
mergeandbackupoperations.Fixed usability issues with the
showcommand, in particular: fixed displaying the recovery time, which could sometimes not be displayed after a successful backup; made the backup time be displayed in a table view even if the backup ended with an error.Fixed an error in specifying the relative path after restoring a cluster from a backup.
Corrected an improper assignment of backup IDs that took place in some cases.
Added an option to skip creation or initialization of an existing backup instance.
Fixed an issue with inclusion of the whole data in an incremental backup rather than only the changed data.
Upgraded pgpro_stats to version 1.6, which provides new features and bugfixes:
Implemented tracing of application sessions, based on filters, which trigger logging the execution of queries that match filtering conditions. You can use pgpro_stats functions to create, update or delete query filters. (See Section F.43.6.1 for details.)
Added functions for superuser to create views that emulate pg_stat_statements and pg_stat_kcache extensions. Specifically,
pg_stat_statements,pg_stat_statements_info,pg_stat_kcacheandpg_stat_kcache_detailviews can be created. Once they are created, you can work with them as if the appropriate extension is installed. (See Section F.43.6.2 for details.)Added
pgpro_stats_archiverview, which extends the pg_stat_archiver view by adding two fields, showing overall time that the archiver process was active and overall execution time of the archive command.Implemented backward compatibility of the vacuum statistics interface. Now a newer version of the pgpro_stats shared library can be safely used with old declarations of SQL functions. Previously such cases caused a server crash.
Fixed possible server crashes that could occur due to
PGDATAoverflow when in pgpro_stats, one or several long queries were executed. Now instead of storing query texts in a temporary file located in thePGDATA/pg_stat_tmppgpro_stats.stats_temp_directoryconfiguration parameter. If you wish, you can set this value equal to the value of the system configuration parameterstats_temp_directory. But keep in mind thatpgpro_stats.stats_temp_directorycan only be set at the server start.
Upgraded pgpro_pwr to version 4.1.3, which supports pgpro_stats 1.6 and provides the following new features:
Added report tables “Top tables by removed all-visible/all-frozed marks”.
Added a few new fields to the “Cluster Statistics” report table.
Upgraded PTRACK to version 2.4.3.
Upgraded orafce to version 4.2.6.
E.8.2. Migration to Version 13.11.1
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 are migrating to the current major version of Postgres Pro Enterprise using pg_upgrade, and you want to keep the existing visibility map representation in pageinspect, you should run the VACUUM command before the upgrade.
When upgrading to Postgres Pro Enterprise versions starting with 13.11.1, make sure to upgrade pg_probackup to version 2.6.4 or higher since lower versions are incompatible with these Postgres Pro Enterprise versions.
If you have previously migrated to Postgres Pro Enterprise 13.3.1 or lower, you must run the REINDEX command to rebuild GIN indexes.
If you are upgrading from Postgres Pro Enterprise versions 13.2.2 or lower and take PTRACK backups using pg_probackup, retake a full backup after upgrade.
If you have an installation of Postgres Pro Enterprise 13.2.1 that contains compressed tablespaces created without explicitly specifying the pglz algorithm, perform an upgrade as follows. Before upgrading, make a complete dump using pg_dumpall. Upgrade Postgres Pro Enterprise, re-create your database cluster, and restore the dump. Then you can create compressed tablespaces in the same way as before.
If you have already upgraded your installation with CFS tablespaces from Postgres Pro Enterprise 13.2.1, and you cannot access the compressed data, call the support team.
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 13.