Github user fjh100456 commented on the issue:
https://github.com/apache/spark/pull/19218
@gatorsmile
I'd test manully. When table-level compression not configured, it always
take the session level compression, and ignore the existing file compression.
Seems like a bug, however, table files with multiple compressions do not affect
the reading and writing.
Is it ok to add a test to check reading and writing when there are multiple
conpressions in the existing table files?
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