Version 2.3.3

Released on 2018/02/15.


If you are upgrading a cluster, you must be running CrateDB Version 1.1.3 or higher before you upgrade to 2.3.3.

If you want to perform a rolling upgrade, your current CrateDB version number must be at least Version 2.3.0. Any upgrade from a version prior to this will require a full restart upgrade.


Before upgrading, you should back up your data.

Table of contents



  • Improved the handling of node disconnects to ensure there are no stale queries in case a node dies.

  • Fixed an issue that could result in a Bulk operation not supported for RootRelationBoundary error when querying sys.checks

  • Fixed a bug in parsing the UDF meta data when read from state file during node start that could cause other custom meta data (such as users) to disappear from cluster state.

  • Fixed an Admin UI issue that caused the translation strings to not be loaded correctly.

  • Fixed an issue that only occurred in Enterprise Edition, when privileges are enabled. This issue would result in an exception about missing privileges being thrown, rather than the expected Unsupported Feature exception, when attempting operations on closed tables/partitions as a user.

  • Fixed an issue that caused a NullPointerException if REFRESH TABLE was executed on a table with closed partitions.

  • Fixed an issue that caused MissingPrivilegeException for non-superusers for queries with UNION ALL.

  • Fixed a regression that caused assignments of arrays including parameter placeholders to not work correctly.

  • Fixed a regression which caused IS NOT NULL predicates on columns of type array(object) to not match correctly.

  • Fixed an issue that caused the percentile aggregation to fail if an array containing a single item was passed as fractions.

  • Fixed an issue which resulted in an exception when a routing column was compared against a subquery inside a WHERE clause.

  • Fixed a performance regression resulting in a table scan instead of a NO-MATCH if a subquery used inside a WHERE clause returns no result (