ArrowRowGroupWriter

parquet::arrow::arrow_writer

Struct ArrowRowGroupWriter 

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struct ArrowRowGroupWriter {
    writers: Vec<ArrowColumnWriter>,
    schema: SchemaRef,
    buffered_rows: usize,
}
Expand description

Encodes [RecordBatch] to a parquet row group

Note: this structure is created by ArrowRowGroupWriterFactory internally used to create ArrowRowGroupWriters, but it is not exposed publicly.

See the example on ArrowColumnWriter for how to encode columns in parallel

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§writers: Vec<ArrowColumnWriter>§schema: SchemaRef§buffered_rows: usize

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impl ArrowRowGroupWriter

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fn new(writers: Vec<ArrowColumnWriter>, arrow: &SchemaRef) -> Self

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fn write(&mut self, batch: &RecordBatch) -> Result<()>

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fn close(self) -> Result<Vec<ArrowColumnChunk>>

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impl Debug for ArrowRowGroupWriter

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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