apache / apache/druid

"FOR UPDATE" sql command is in the wrong place

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#11,418 5 comments 0 reactions 0 assignees View on GitHub
Area - Extension Area - Metadata Bug
Dominant language
Java
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Description

"FOR UPDATE" is not compatible with SQL SERVER or other several DB, this should be erased from here and use another strategy for locking rows

https://github.com/apache/druid/blob/d5e8d4d68007899df17f390a756422d511d746d5/server/src/main/java/org/apache/druid/metadata/SQLMetadataConnector.java#L476

Contributor guide

Open the contributing guide

Research direction

Start at server/src/main/java/org/apache/druid/metadata/SQLMetadataConnector.java near line 476 and identify where the FOR UPDATE clause is added. Check the supported database behavior and determine a compatible row-locking approach; done means locking works across supported databases without emitting the incompatible clause.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, sql
Domain
databases
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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