E.20. Postgres Pro Standard 9.6.6.1

Release date: 2017-11-14

E.20.1. Overview

This release is based on PostgreSQL 9.6.6 and Postgres Pro Standard 9.6.5.1. All improvements inherited from PostgreSQL 9.6.6 are listed in PostgreSQL 9.6.6 Release Notes.

Major enhancements over Postgres Pro Standard 9.6.5.1 include:

  • Updated pg_pathman module to version 1.4.8. (See pg_pathman and Section F.36.1.1.) As compared to version 1.4.3, the following enhancements were introduced:

    • Improved cache invalidation mechanisms.

    • Disabled COPY partitioned_table TO command. Use COPY (SELECT * FROM partitioned_table) TO instead.

    • Fixed INSTEAD OF triggers on views selected from partitioned tables.

    • ALTER TABLE partitioned_table RENAME TO now also renames auto naming sequences.

    • Disabled some dangerous optimizations for SELECT ... FOR SHARE/UPDATE on PostgreSQL 9.5.

    • Improved error handling in concurrent partitioning background worker.

    • Prohibited execution of queries DELETE FROM partitioned_table_1 USING partitioned_table_2... and UPDATE partitioned_table_1 FROM partitioned_table_2... if such queries touch more than one partition of partitioned_table_1.

    • Fixed a bug causing crashes on RESET ALL.

    • Fixed WHERE conditions that point to gaps between partitions.

    • Restored compatibility with pg_repack.

    • For the full list of changes, see pg_pathman Wiki.

  • Updated the pg_probackup utility from version 2.0.2 to 2.0.11, which includes the following new features:

    • Password prompt interruption is now handled correctly.

    • The provided passwords are checked to be is non-empty.

    • The files that have not changed since the previous backup are not included into the next incremental backup.

    • Database version is now added into backup meta information.

    • Other miscellaneous bug fixes.

E.20.2. Migration to Version 9.6.6.1

Depending on your current installation, the upgrade procedure will differ.

To upgrade from a Postgres Pro Standard version based on any previous PostgreSQL major release, make sure you have installed its latest minor version, and then perform a dump/restore using pg_dumpall or use the pg_upgrade utility.

To upgrade from a Postgres Pro Standard version based on the same PostgreSQL major release, a dump/restore is not required. If you are upgrading from Postgres Pro Standard 9.6.5.1, it is enough to install the new version into your current installation directory. When upgrading from Postgres Pro Standard 9.6.4.1 or lower, you must also use the pgpro_upgrade script provided in this distribution. This script updates metadata information to handle catalog number format change introduced after Postgres Pro Standard 9.6.4.1. If you are upgrading your Postgres Pro installation from a binary package, the pgpro_upgrade script is run automatically, unless you are prompted to run it manually.

Important

If you run pgpro_upgrade manually, you must stop postgres service. The script must be run on behalf of the user owning the database (typically postgres). Running pgpro_upgrade as root will result in an error. For details, see pgpro_upgrade.

If you have compiled Postgres Pro from source code or created your database in a non-default location, you must run the pgpro_upgrade script manually.

Note

On RPM-based Linux distributions, if you are upgrading from version 9.6.2.1 or lower, make sure to move the data directory from pgsql to the pgpro directory before running the pgpro_upgrade script.

To migrate from vanilla PostgreSQL 9.6.x, perform a dump/restore using pg_dumpall.