wgtmac commented on code in PR #48468:
URL: https://github.com/apache/arrow/pull/48468#discussion_r2786328969
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cpp/src/parquet/file_writer.cc:
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@@ -68,6 +68,12 @@ int64_t RowGroupWriter::total_compressed_bytes_written()
const {
return contents_->total_compressed_bytes_written();
}
+int64_t RowGroupWriter::EstimatedTotalCompressedBytes() const {
+ return contents_->total_compressed_bytes() +
+ contents_->total_compressed_bytes_written() +
+ contents_->EstimatedBufferedValueBytes();
Review Comment:
If it is hard to decide which way to go, what about implementing option 1 as
suggested by @pitrou? We can count the uncompressed part later if we really
think it is useful.
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