Release date: 2017-11-15
This release is based on PostgreSQL 9.6.6 and Postgres Pro Enterprise 9.6.5.2. All improvements inherited from PostgreSQL 9.6.6 are listed in PostgreSQL 9.6.6 Release Notes. Major enhancements over Postgres Pro Enterprise 9.6.5.2 include:
Improved multimaster extension. In particular, the following changes were introduced:
Added a new extension (referee) for managing quorum settings. With this extension, you can set up a standalone referee node for your cluster to assign the quorum status to a subset of nodes that constitutes half of the cluster. For details, see Section F.31.3.3.1.
Added a new parameter for choosing a major node in two-node clusters. You can now set up a major node that continues working even if there is no quorum. For details, see Section F.31.3.3.2.
Updated pg_pathman module to version 1.4.8. (See pg_pathman and Section F.39.1.1.) As compared to version 1.4.3, the following enhancements were introduced:
Improved cache invalidation mechanisms.
Disabled COPY command.
Use partitioned_table TOCOPY (SELECT * FROM instead.
partitioned_table) TO
Fixed INSTEAD OF triggers on views selected from partitioned tables.
ALTER TABLE now also renames auto naming sequences.
partitioned_table RENAME TO
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
and
partitioned_table_1 USING partitioned_table_2...UPDATE
if such queries touch more than one partition of partitioned_table_1 FROM partitioned_table_2...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 to version 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 bugfixes.
Depending on your current installation, the upgrade procedure will differ.
To upgrade from a Postgres Pro Enterprise version
based on the same PostgreSQL major release,
a dump/restore is not required. Instead of the pg_upgrade,
you must use the pgpro_upgrade script provided
in this distribution. This script updates metadata information to
handle catalog number format change introduced in
Postgres Pro Enterprise 9.6.4.1, as well as
renames the pgpro_build function to pgpro_source_id. If you are upgrading your
Postgres Pro Enterprise installation from a binary package, the
pgpro_upgrade script is run automatically, or you
are prompted to run it manually.
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) and PGDATA environment variable should be
set to the directory where database resides. Running pgpro_upgrade
as root will result in an error.
When upgrading from versions 9.6.2.1 or lower, you have to rebuild
GiST indexes built over columns of the intarray type.
On RPM-based Linux distributions, if you are upgrading from
version 9.6.1.2, make sure to move the data directory from
pgsql to the pgproee
directory before running the pgpro_upgrade script.
To migrate from vanilla PostgreSQL 9.6.x or Postgres Pro, make sure you have installed its latest minor version and then perform a dump/restore using pg_dumpall.