[FLINK-24728][table-runtime-blink] Close output stream in batch SQL file sink #18074
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(This PR is cherry-picked from #17638 and #17655)
What is the purpose of the change
Currently the output format created in
FileSystemTableSink#createBulkWriterOutputFormat
only finishes theBulkWriter
and does not close the output stream. This will cause some problems with some file systems for example HDFS.This PR fixes this issue.
Brief change log
Verifying this change
This change is a trivial rework / code cleanup without any test coverage.
Does this pull request potentially affect one of the following parts:
@Public(Evolving)
: noDocumentation