[CALCITE-6623] MongoDB adapter throws a java.lang.ClassCastException when Decimal128 or Binary types are used, or when a primitive value is cast to a string

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.37.0
• Fix Version/s: 1.39.0
• Component/s: mongodb-adapter
• Labels: pull-request-available
• Assignee: Dmitry Sysolyatin
• Reporter: Dmitry Sysolyatin
• Created: 11/Oct/24 13:05
• Updated: 16/Oct/24 06:55
• Resolved: 16/Oct/24 06:55

Description

At the moment, the MongoDB adapter throws a java.lang.ClassCastException when Decimal128 or Binary types are used, or when a primitive value is cast to a string.

Additionally, the ClassCastException error is not meaningful. It would be better to throw a custom exception within the convert function if it is impossible to convert an object to the Calcite runtime type.

Issue Links

• links to: GitHub Pull Request #4001