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docs(python): Add example showing use of write_delta with delta_lake.WriterProperties #20746

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docs(python): Add example showing use of write_delta with delta_lake.WriterProperties #20746

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15 changes: 15 additions & 0 deletions py-polars/polars/dataframe/frame.py
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Expand Up @@ -4420,6 +4420,21 @@ def write_delta(
... },
... ) # doctest: +SKIP

Write DataFrame as a Delta Lake table with zstd compression.
For all `delta_write_options` keyword arguments, check the deltalake docs
`here
<https://delta-io.github.io/delta-rs/api/delta_writer/#deltalake.write_deltalake>`__,
and for Writer Properties in particular `here
<https://delta-io.github.io/delta-rs/api/delta_writer/#deltalake.WriterProperties>`__.

>>> import deltalake
>>> df.write_delta(
... table_path,
... delta_write_options={
... "writer_properties": deltalake.WriterProperties(compression="zstd"),
... },
... ) # doctest: +SKIP

Merge the DataFrame with an existing Delta Lake table.
For all `TableMerger` methods, check the deltalake docs
`here <https://delta-io.github.io/delta-rs/api/delta_table/delta_table_merger/>`__.
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