Github user petermaxlee commented on the issue:
https://github.com/apache/spark/pull/14389
I examined the usage of various type coercion rules, and here are how they
are used:
```
findTightestCommonTypeOfTwo
- BinaryOperator
- IfNull
- NullIf
- Nvl2
- JSON schema inference
findTightestCommonTypeToString
- Nvl
findTightestCommonTypeAndPromoteToString
- CreateArray
- CreateMap
findTightestCommonType
- Greatest
- Least
findWiderTypeForTwo
- IfCoercion
findWiderCommonType
- WidenSetOperationTypes
- InConversion
- Coalesce
- CaseWhenCoercion
```
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
