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4.0.8.rst
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4.0.8.rst
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.. _version_4.0.8:
=============
Version 4.0.8
=============
Released on 2019/11/07.
.. NOTE::
Please consult the :ref:`v4.0.0-upgrade-notes` before upgrading from
CrateDB 3.x or earlier. Before upgrading to 4.0.8 you should be running a
CrateDB cluster that is at least on 3.0.7.
We recommend that you upgrade to the latest 3.3 release before moving to
4.0.8.
If you want to perform a `rolling upgrade`_, your current CrateDB version
number must be at least :ref:`version_4.0.2`. Any upgrade from a version
prior to this will require a `full restart upgrade`_.
When restarting, CrateDB will migrate indexes to a newer format. Depending
on the amount of data, this may delay node start-up time.
.. WARNING::
Tables that were created prior CrateDB 3.x will not function with 4.x and
must be recreated before moving to 4.x.x.
You can recreate tables using ``COPY TO`` and ``COPY FROM`` or by
`inserting the data into a new table`_.
Before upgrading, you should `back up your data`_.
.. _rolling upgrade: https://crate.io/docs/crate/howtos/en/latest/admin/rolling-upgrade.html
.. _full restart upgrade: https://crate.io/docs/crate/howtos/en/latest/admin/full-restart-upgrade.html
.. _back up your data: https://crate.io/docs/crate/reference/en/latest/admin/snapshots.html
.. _inserting the data into a new table: https://crate.io/docs/crate/reference/en/latest/admin/system-information.html#tables-need-to-be-recreated
.. rubric:: Table of Contents
.. contents::
:local:
See the :ref:`version_4.0.0` release notes for a full list of changes in the
4.0 series.
Fixes
=====
- Improved the handling of sorted queries with a large limit, to reduce the
chance of them causing a out of memory error.
- Fixed a ``NullPointerException`` that could occur when querying the
``settings`` column of ``information_schema.table_partitions``.
- Fixed an issue in the Admin interface that caused the pagination ``Previous``
button to not display the whole list of results for that page in the console
view.
- Fixed an issue that could prevent ``CREATE SNAPSHOT`` from succeeding,
resulting in a partial snapshot which contained failure messages incorrectly
indicating that the index is corrupt.
- Fixed an issue resulting in a parsing exception on ``SHOW TABLE`` statements
when a default :ref:`expression <gloss-expression>` is implicitly cast to the
related column type and the column type contains a ``SPACE`` character (like
e.g. ``double precision``).