francis-du commented on code in PR #35:
URL:
https://github.com/apache/arrow-datafusion-python/pull/35#discussion_r949742906
##########
src/dataframe.rs:
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@@ -164,4 +164,24 @@ impl PyDataFrame {
let batches = wait_for_future(py, df.collect())?;
Ok(pretty::print_batches(&batches)?)
}
+
+ /// Calculate the union of two `DataFrame`s, preserving duplicate rows.The
+ /// two `DataFrame`s must have exactly the same schema
+ #[args(distinct = false)]
+ fn union(&self, py_df: PyDataFrame, distinct: bool) -> PyResult<Self> {
Review Comment:
User has two ways to use union distinct, if not necessary I will remove
parameter district from union.
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