polars_cloud.LazyFrameExt.sink_parquet#
- LazyFrameExt.sink_parquet(
- uri: str,
- *,
- compression: ParquetCompression = 'zstd',
- compression_level: int | None = None,
- statistics: bool = True,
- row_group_size: int | None = None,
- data_page_size: int | None = None,
Start executing the query and write the result to parquet.
- Parameters:
- uri
Path to which the output should be written. Must be a URI to an accessible object store location. If set to
"local", the query is executed locally.- compression{‘lz4’, ‘uncompressed’, ‘snappy’, ‘gzip’, ‘lzo’, ‘brotli’, ‘zstd’}
Choose “zstd” for good compression performance. Choose “lz4” for fast compression/decompression. Choose “snappy” for more backwards compatibility guarantees when you deal with older parquet readers.
- compression_level
The level of compression to use. Higher compression means smaller files on disk.
“gzip” : min-level: 0, max-level: 10.
“brotli” : min-level: 0, max-level: 11.
“zstd” : min-level: 1, max-level: 22.
- statistics
Write statistics to the parquet headers. This is the default behavior.
- row_group_size
Size of the row groups in number of rows. Defaults to 512^2 rows.
- data_page_size
Size of the data page in bytes. Defaults to 1024^2 bytes.