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4.8.1.rst
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4.8.1.rst
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.. _version_4.8.1:
=============
Version 4.8.1
=============
Released on 2022-05-24.
.. NOTE::
If you are upgrading a cluster, you must be running CrateDB 4.0.2 or higher
before you upgrade to 4.8.1.
We recommend that you upgrade to the latest 4.7 release before moving to
4.8.1.
A rolling upgrade from 4.7.x to 4.8.1 is supported.
Before upgrading, you should `back up your data`_.
.. _back up your data: https://crate.io/docs/crate/reference/en/latest/admin/snapshots.html
.. rubric:: Table of Contents
.. contents::
:local:
See the :ref:`version_4.8.0` release notes for a full list of changes in the
4.8 series.
Fixes
=====
- Enabled users to alter settings on tables subscribed in a logical replication.
- Enabled to alter the setting ``blocks.read_only_allow_delete`` on blob tables
to make it possible to drop read-only blob tables.
- Fixed an issue that could cause queries on ``sys.snapshots`` to get stuck and
consume a significant amount of resources.
- Fixed an issue with primary key columns that have a ``DEFAULT`` clause. That
could lead to queries on the primary key column not matching the row.
- Fixed an issue with the logical replication of tables metadata which caused
to stop if the master node of the subscriber changed.
- Fixed an issue with aliased sub-relation outputs when used inside the outer
where clause expression, resulting in a planner error. Example:
``SELECT * FROM (SELECT id, true AS a FROM t1) WHERE a``
- Fixed an edge case with the initial restore of subscribed tables when the
restore operation finish almost instantly (e.g. restoring small tables).
- Fixed an issue with table functions parameter binding in ``SELECT`` queries
without ``FROM`` clause. Example: ``SELECT unnest(?)``.
- Improved error handling when creating a subscription with unknown
publications. Instead of successfully creating the subscription, an error
is now presented to the user.
- Fixed an issue with client caching which lead to authentication error when
creating a subscription with bad credentials and ``pg_tunnel`` followed by
re-creating it second time with the same name and valid credentials.
- Fixed an issue with ``VARCHAR`` and ``BIT`` columns with a length
limited used in primary key, generated or default column expression. An
``ALTER TABLE`` statement removed the length limit from such columns.
- Fixed an issue resulting in a broken subscription when a subscription is
dropped and re-created within a short period of time.