unnest_column has been deprecated since DF42

Author: timsaucer

crates/core/src/dataframe.rs

@@ -868,19 +868,6 @@ impl PyDataFrame {
         Ok(Self::new(new_df))
     }
 
-    #[pyo3(signature = (column, preserve_nulls=true))]
-    fn unnest_column(&self, column: &str, preserve_nulls: bool) -> PyDataFusionResult<Self> {
-        // TODO: expose RecursionUnnestOptions
-        // REF: https://github.com/apache/datafusion/pull/11577
-        let unnest_options = UnnestOptions::default().with_preserve_nulls(preserve_nulls);
-        let df = self
-            .df
-            .as_ref()
-            .clone()
-            .unnest_columns_with_options(&[column], unnest_options)?;
-        Ok(Self::new(df))
-    }
-
     #[pyo3(signature = (columns, preserve_nulls=true))]
     fn unnest_columns(
         &self,

python/datafusion/dataframe.py

@@ -30,11 +30,6 @@
     overload,
 )
 
-try:
-    from warnings import deprecated  # Python 3.13+
-except ImportError:
-    from typing_extensions import deprecated  # Python 3.12
-
 from datafusion._internal import DataFrame as DataFrameInternal
 from datafusion._internal import DataFrameWriteOptions as DataFrameWriteOptionsInternal
 from datafusion._internal import InsertOp as InsertOpInternal
@@ -1298,11 +1293,6 @@ def count(self) -> int:
         """
         return self.df.count()
 
-    @deprecated("Use :py:func:`unnest_columns` instead.")
-    def unnest_column(self, column: str, preserve_nulls: bool = True) -> DataFrame:
-        """See :py:func:`unnest_columns`."""
-        return DataFrame(self.df.unnest_column(column, preserve_nulls=preserve_nulls))
-
     def unnest_columns(self, *columns: str, preserve_nulls: bool = True) -> DataFrame:
         """Expand columns of arrays into a single row per array element.