5.6

Version 5.2.4

Released on 2023-03-14.

Note

If you are upgrading a cluster, you must be running CrateDB 4.0.2 or higher before you upgrade to 5.2.4.

We recommend that you upgrade to the latest 5.1 release before moving to 5.2.4.

A rolling upgrade from 5.1.x to 5.2.4 is supported. Before upgrading, you should back up your data.

Warning

Tables that were created before CrateDB 4.x will not function with 5.x and must be recreated before moving to 5.x.x.

You can recreate tables using COPY TO and COPY FROM or by inserting the data into a new table.

Table of Contents

See the Version 5.2.0 release notes for a full list of changes in the 5.2 series.

Fixes

  • Fixed an issue that caused JOIN queries to fail with an internal error, when USING is used to define the join condition in combination with a nested join e.g.:

    SELECT * FROM t1 JOIN (t2 JOIN t3 ON t2.y = t3.y) USING(x)

    Furthermore, validation of USING was added, so that a meaningful error message is thrown in case it’s misused.

  • Fixed an issue that caused nested joins to fail with an internal error e.g.:

    SELECT * FROM t1 JOIN (t2 JOIN t3 ON t2.x = t3.x) ON t1.x = t2.x

  • Fixed an issue that could cause errors for queries with aggregations and UNION, e.g.

    SELECT a, avg(c), b FROM t1 GROUP BY 1, 3
UNION
SELECT x, avg(z), y FROM t2 GROUP BY 1, 3
UNION
SELECT i, avg(k), j FROM t3 GROUP BY 1, 3

  • Fixed a performance regression for IS NOT NULL expressions on object columns which was introduced in 5.0.3 and 5.1.1.

  • Fixed an issue that could cause DELETE FROM statements which match a large amount of records to cause a node to crash with an out of memory error.

  • Fixed an issue that caused expressions like <column> != ANY(<array-literal>) to match on partitions where the column didn’t exist or on records where <column> had a null value.

  • Fixed an issue that allowed users to execute user-defined functions without DQL privileges on the schemas that the functions are defined in.

  • Fixed an issue that translated ColumnUnknownException to a misleading SchemaUnknownException when users without DQL privilege on doc schema queried unknown columns from table functions. An example

    SELECT unknown_col FROM abs(1);
SchemaUnknownException[Schema 'doc' unknown]

  • Fixed an issue that translated an AmbiguousColumnException to a misleading IllegalStateException when aliased columns are queried that are also ambiguous. An example

    SELECT r FROM (SELECT a AS r, a AS r FROM t) AS q
IllegalStateException[Symbol 'io.crate.expression.symbol.Symbol' not supported]
// r is an alias of a and is ambiguous from the perspective of the outer query

  • Fixed an issue that translated UnsupportedOperationException to a misleading MissingPrivilegeException when executing functions with invalid names or signatures.

  • Fixed an issue causing nested join statements using the NESTED LOOP plan to return incorrect results in some scenarios when issued on a multi-node cluster.