Github user jiangxb1987 commented on the issue:
https://github.com/apache/spark/pull/14401
@rxin As @yhuai previously addressed, this change benifits in following
cases:
1. Right now, we set the warehouse path to the default one firstly, and
then we override the setting in `TestHiveSharedState` when we create
`metadataHive`. This flow is not easy to follow and can introduce confusion in
debugging.
2. Removing the field of `warehousePath` will be the first step in removing
`TestHiveSessionState` and `TestHiveSharedState`, so that we can really test
the reflection logic based on the setting of `CATALOG_IMPLEMENTATION`.
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