ion-elgreco commented on code in PR #981:
URL: https://github.com/apache/datafusion-python/pull/981#discussion_r1905619163
##########
python/datafusion/dataframe.py:
##########
@@ -620,16 +620,25 @@ def write_csv(self, path: str | pathlib.Path,
with_header: bool = False) -> None
def write_parquet(
self,
path: str | pathlib.Path,
- compression: str = "uncompressed",
+ compression: str = "ZSTD",
compression_level: int | None = None,
) -> None:
"""Execute the :py:class:`DataFrame` and write the results to a
Parquet file.
Args:
path: Path of the Parquet file to write.
- compression: Compression type to use.
- compression_level: Compression level to use.
- """
+ compression: Compression type to use. Default is "ZSTD".
+ compression_level: Compression level to use. For ZSTD, the
+ recommended range is 1 to 22, with the default being 4. Higher
levels
+ provide better compression but slower speed.
+ """
+ if compression == "ZSTD":
Review Comment:
You might want to reuse this code I added in deltalake a while ago:
https://github.com/delta-io/delta-rs/blob/053601b72c2ee053f7ff0309c7d27e122c4e3852/python/deltalake/table.py#L79-L129
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