Druid 29.0.1

Apache Druid 29.0.1 is a patch release that fixes some issues in the Druid 29.0.0 release.

Bug fixes

• Added type verification for INSERT and REPLACE to validate that strings and string arrays aren't mixed #15920
• Concurrent replace now allows pending Peon segments to be upgraded using the Supervisor #15995
• Changed the targetDataSource attribute to return a string containing the name of the datasource. This reverts the breaking change introduced in Druid 29.0.0 for INSERT and REPLACE MSQ queries #16004 #16031
• Decreased the size of the distribution Docker image #15968
• Fixed an issue with SQL-based ingestion where string inputs, such as from CSV, TSV, or string-value fields in JSON, are ingested as null values when they are typed as LONG or BIGINT #15999
• Fixed an issue where a web console-generated Kafka supervisor spec has flattenSpec in the wrong location #15946
• Fixed an issue with filters on expression virtual column indexes incorrectly considering values null in some cases for expressions which translate null values into not null values #15959
• Fixed an issue where the data loader crashes if the incoming data can't be parsed #15983
• Improved DOUBLE type detection in the web console #15998
• Web console-generated queries now only set the context parameter arrayIngestMode to array when you explicitly opt in to use arrays #15927
• The web console now displays the results of an MSQ query that writes to an external destination through the EXTERN function #15969

Incompatible changes

Changes to targetDataSource in EXPLAIN queries

Druid 29.0.1 includes a breaking change that restores the behavior for targetDataSource to its 28.0.0 and earlier state, different from Druid 29.0.0 and only 29.0.0. In 29.0.0, targetDataSource returns a JSON object that includes the datasource name. In all other versions, targetDataSource returns a string containing the name of the datasource.

If you're upgrading from any version other than 29.0.0, there is no change in behavior.

If you are upgrading from 29.0.0, this is an incompatible change.

#16004

Dependency updates

• Updated PostgreSQL JDBC Driver version to 42.7.2 #15931

Credits

@abhishekagarwal87
@adarshsanjeev
@AmatyaAvadhanula
@clintropolis
@cryptoe
@dependabot[bot]
@ektravel
@gargvishesh
@gianm
@kgyrtkirk
@LakshSingla
@somu-imply
@techdocsmith
@vogievetsky