lilianm commented on code in PR #8262:
URL: https://github.com/apache/arrow-rs/pull/8262#discussion_r2325192596
##########
parquet/src/arrow/async_writer/mod.rs:
##########
@@ -288,6 +288,23 @@ impl<W: AsyncFileWriter> AsyncArrowWriter<W> {
Ok(())
}
+
+ /// Create a new row group writer and return its column writers.
+ pub async fn get_column_writers(&mut self) ->
Result<Vec<ArrowColumnWriter>> {
+ let before = self.sync_writer.flushed_row_groups().len();
+ let writers = self.sync_writer.get_column_writers()?;
+ if before != self.sync_writer.flushed_row_groups().len() {
+ self.do_write().await?;
+ }
+ Ok(writers)
+ }
+
+ /// Append the given column chunks to the file as a new row group.
+ pub async fn append_row_group(&mut self, chunks: Vec<ArrowColumnChunk>) ->
Result<()> {
+ self.sync_writer.append_row_group(chunks)?;
+ self.do_write().await?;
+ Ok(())
Review Comment:
Updated
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