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Version 2.2.6

Released on 2018/01/17.

Note

If you are upgrading a cluster, you must be running CrateDB :ref:`version_1.1.3` or higher before you upgrade to 2.2.6.

If you want to perform a rolling upgrade, your current CrateDB version number must be :ref:`version_2.2.0`. If you want to upgrade from a version prior to this, the upgrade will introduce all of the breaking changes listed for :ref:`version_2.2.0`, and will require a full restart upgrade.

Warning

Before upgrading, you should back up your data.

Table of contents

Changelog

Fixes

  • Fixed a race condition that caused DELETE or UPDATE statements to result in an error if a shard was being relocated or in a RECOVERY state.

  • Improved error message when using the DISTINCT clause on unsupported data types. Also improved documentation to note the data type restriction.

  • Fix log verbosity by only logging the HTTP SSL enabled/disabled message once at startup.

  • Fixed an issue that could cause INSERT INTO statements into partitioned tables to not work correctly. This only occurred if a query instead of the VALUES clause was used.

  • Fixed the :ref:`evaluation <gloss-evaluation>` of JavaScript :ref:`user-defined functions <user-defined-functions>` that caused CrateDB to crash because of an unhandled assertion when providing the UDF with EcmaScript 6 arrow function syntax (var f = (x) => x;).

  • Fixed an issue where batch operations executed using the PosgreSQL wire protocol returned 0 as row count, even though the actual row count was different.

  • Fixed a bug which could cause job entries in sys.jobs not being removed when a connection error occurred while sending the results of the job execution to the client.

  • Fixed an issue that caused incorrect results for queries with joins on more than 2 tables with implicit join conditions using the ON clause and where LIMIT is applied. E.g.

    SELECT * from t1
INNER JOIN t2 on t1.id = t2.id
INNER JOIN t3 on t3.id = t2.id
LIMIT 100

  • Fixed an issue that could cause an ALTER TABLE statement to fail with an exception on partitioned tables created with CrateDB < 1.2.

  • Enforce validation of column constraints for INSERT statements with a :ref:`subquery <gloss-subquery>` as source and in combination with ON DUPLICATE KEY UPDATE.

  • Fixed an issue that caused an error to be thrown when using GROUP BY or DISTINCT on a column of type IP in case there are rows with null values for that column.