Version 2.0.2

Released on 2017/06/23.

Warning

CrateDB 2.x versions prior 2.0.4 (including this version) contain a critical bug which leads to deletion of blob data upon node shutdown. It is recommended to not install those versions.

Changelog

Fixes

  • Fixed an issue that caused an exception to be thrown when applying aggregations on generated columns of a table.
  • Fixed a bug in the memory accounting of the circuit breaker for HTTP results when querying for columns of undefined type.
  • Fixed wrong results when querying IS NULL on an array of objects.
  • Fixed issue that caused an exception when querying the _id column using all defined primary keys inside the WHERE clause over the HTTP API.
  • Fixed an issue that caused an Exception to be thrown on JOIN queries with 4 or more tables when an ORDER BY is also applied.
  • Fixed an issue that resulted in rows being unable to be queried by primary keys, when the order of the primary key columns on insert differed from the order of the primary key columns on the table definition. Note: If records are already inserted by using a different primary key column order, they must be re-inserted, otherwise queries will still fail for these rows.
  • Fixed an issue that could cause DELETE by query and UPDATE statements to fail on datasets larger than 10,000 rows.
  • Improved the resiliency of queries on sys.nodes: If a node disconnects during the execution of a query it will no longer fail.
  • Added proper handling when memory requirements of a JOIN query exceeds the available memory. Instead of having OutOfMemoryException thrown which led to killed nodes in the cluster, the issue is detected and the query is killed without affecting the cluster.
  • Fixed an issue that could cause DELETE statements to fail instead of “not matching” if there was a _version column in the WHERE clause.
  • Fixed an error handling issue that could lead to the termination of a node in very rare cases. (Usually if a user invoked the KILL statement)
  • Fixed issue where bulk operations like INSERT from dynamic queries and COPY FROM did not stop after being killed.
  • CREATE USER and DROP USER statements will now only respond after all nodes in the cluster have processed the change.
  • Fixed an issue that caused an exception to be thrown when using unnest with 10 or more columns.