Version 2.0.4

    Note

    If you are upgrading a cluster, you must be running CrateDB Version 1.1.3 or higher before you upgrade to 2.0.4.

    If you want to perform a , your current CrateDB version number must be Version 2.0.0. If you want to upgrade from a version prior to this, the upgrade will introduce all of the breaking changes listed for , and will require a full restart upgrade.

    Consult the upgrade notes for when upgrading.

    Warning

    If you’re using CrateDB’s BLOB storage you should consult the Upgrade Notes.

    Table of contents

    Due to a bug introduced in Version 2.0.0 that can cause loss of BLOB data, it is necessary to perform a if you’re running a version greater than or equal to 2.0.0 and using BLOB tables.

    Only then you may upgrade one node after each other.

    • Fixed an issue that caused blob data to be deleted upon node shutdown.

    • Fix thread-safety issue for scalar functions md5 and sha1.

    • now returns the default routing hash function if none is present in the table metadata.

    • Fixed an issue that caused an exception to be thrown when using COUNT(*) with that return one row, e.g.: