Version 4.6.4

Released on 2021-09-30.


If you are upgrading a cluster, you must be running CrateDB 4.0.2 or higher before you upgrade to 4.6.4.

We recommend that you upgrade to the latest 4.3 release before moving to 4.6.4.

A rolling upgrade from 4.5.x to 4.6.4 is supported.

Before upgrading, you should back up your data.

Table of Contents

See the Version 4.6.0 release notes for a full list of changes in the 4.6 series.


  • Improved the internal dynamic batching mechanism for operations like INSERT INTO FROM QUERY and COPY FROM. It should more aggressively throttle these operations in case of memory pressure, reducing the chance of them failing with a CircuitBreakingException.

  • Fixed a second issue that could cause clients to receive a 400 Bad Request error when using the HTTP interface early during node startup. The previous fix within the 4.6.3 release was incomplete.

  • Reduced the default initial concurrency limit for operations like INSERT INTO FROM QUERY from 50 to 5. This is closer to the behavior before 4.6.0. If the nodes have spare capacity for a higher concurrency the effective concurrency limit will grow dynamically over time, but it will start out lower to avoid overloading a cluster with an initial spike of internal requests.

  • Added various overload protection settings to control the concurrency of operations like INSERT INTO FROM QUERY.

  • Fixed an issue that caused ALTER TABLE <tbl> ADD COLUMN <columName> INDEX USING FULLTEXT statements to ignore the INDEX USING FULLTEXT part.

  • Fixed a performance regression introduced in 4.2 which could cause queries including joins, virtual tables and LIMIT operators to run slower than before.

  • Fixed an issue that caused INSERT INTO statements to fail on partitioned tables where the partitioned column is generated and the column and value are provided in the statement.

  • Fixed an issue that caused showing an incorrect log message in case of an authentication failure. “Password authentication” used to be shown instead of the actual authentication method name.

  • Fixed an issue that caused NullPointerException when inserting into previously altered tables that were partitioned and had generated columns.

  • Fixed an issue in the administration console: Nested arrays in OBJECT(IGNORED) columns will now be displayed correctly.