ji chen

PHOENIX-6698 hive-connector will take long time to generate splits fo…

12

This patch enables PhoenixInputFormat to generate splits in parallel, it introduce two parameters to control the degree of parallelism. 1.'hive.phoenix.split.parallel.threshold' is used to contrl if split should be generated in...

### Search before asking - [x] I searched in the [issues](https://github.com/apache/paimon/issues) and found nothing similar. ### Paimon version When we write rows to arrow format with empty paimon schema,following exception...