Version 1.0.0

Released on 2016/12/05.

Note

If you are upgrading a cluster, you must be running CrateDB 0.57.0 or higher before you upgrade to 1.0.0.

You cannot perform a rolling upgrade to this version. Any upgrade to this version will require a full restart upgrade.

Warning

Before upgrading, you should back up your data.

Table of Contents

Changelog

Breaking Changes

  • Removed schema_name from information_schema.tables, information_schema.columns, and information_schema.table_constraints in favour of table_schema.

  • Possibly BREAKING blob storage changes:

    • Changed blob storage to utilize all paths listed under path.data.
    • Changed the directory layout in case a custom blobs.path is configured. This allows running two nodes on the same machine pointing to the same blobs.path without conflicts.

    These changes require a manual migration for users who have blob tables and either had:

    • Multiple paths configured under path.data
    • A custom blobs.path set either globally or per table.

    Please run the migration script provided before updating to examine whether you are affected by these changes. The migration script will tell you what has to be done.

Changes

  • Removed the client package which contained the deprecated crate-client. You should start using the PostgreSQL JDBC driver instead.

  • Removed Java 7 support

  • Optimize execution of joins by ordering the join relations based on join/where conditions.

  • Improved error message if function is unsupported with distinct.

  • Nested numeric factors do not require brackets any more; e.g. SELECT + - 10 is now supported.

  • Added subscript support for cast and try_cast expressions. e.g.: select cast(coordinates as array(double))[1] from sys.summits is now possible

  • Upgraded Elasticsearch to 2.4.2.

  • Added scalar functions latitude and longitude to extract latitude and longitude of a geo_point.

  • Improved performance of array_cat and array_difference scalar functions if the array contains function expressions.

  • New setting stats.service.interval which allows to control the refresh interval of the table statistics used to create optimal query execution plans.

  • Added support for global aggregations on subselects.

  • Added the -C option for providing CrateDB settings and deprecated usage of the .es prefix with -D option.

  • Added support for global aggregations on joins

  • Log unhandled HTTP related exceptions as debug instead of error.

  • Implemented if conditional function.

  • F261/F262: Implemented CASE expression support.

  • Removed the duplicate rowcount field from the HTTP response.

  • Added the search_path session setting parameter. The default table schema can be set with SET SESSION search_path = schema_name.

  • Updated crate-admin to 1.0.1 which includes the following changes:

    • Fixed an issue that caused incorrect URL paths if the project gets built.
    • Implemented new layout for the admin-ui.
    • Local development: do not store base_uri permanently in localStorage but keep it in URL.
    • Added Pepper contact widget which displays various Crate.io support Channels in a user friendly way.
    • The first node in the node list is selected by default.
    • The first table in the table list is selected by default.
    • Developer news from Crate.io website are now loaded correctly into newsfeed.

  • Updated Crash to 0.20.0 which includes the following change:

    • Updated information_schema metadata queries to reflect the current state of CrateDB.

Fixes

  • Fixed issue in joins with 3 or more tables where limit was applied before WHERE clause filtering which produced wrong results.
  • Fixed issue which causes BETWEEN to return a wrong result if min or max is null.