[bugfix][plugin][paimonwriter] Fix paimon writer data loss #1396
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withOverwrite() should only be called once before writing, not per batch. Using it in every batch will cause data loss as it resets the table state
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withOverwrite() should only be called once before writing, not per batch. Using it in every batch will cause data loss as it resets the table state
https://paimon.apache.org/docs/1.2/program-api/java-api/#batch-write
to close(#1395)