abstract class OutputWriter extends AnyRef
OutputWriter is used together with HadoopFsRelation for persisting rows to the underlying file system. Subclasses of OutputWriter must provide a zero-argument constructor. An OutputWriter instance is created and initialized when a new output file is opened on executor side. This instance is used to persist rows to this single output file.
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- new OutputWriter()
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- abstract def close(): Unit
Closes the OutputWriter.
Closes the OutputWriter. Invoked on the executor side after all rows are persisted, before the task output is committed.
- abstract def path(): String
The file path to write.
The file path to write. Invoked on the executor side.
- abstract def write(row: InternalRow): Unit
Persists a single row.
Persists a single row. Invoked on the executor side. When writing to dynamically partitioned tables, dynamic partition columns are not included in rows to be written.
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