mbutrovich commented on code in PR #2099:
URL: https://github.com/apache/datafusion-comet/pull/2099#discussion_r2310885992
##########
native/spark-expr/src/static_invoke/char_varchar_utils/read_side_padding.rs:
##########
@@ -43,17 +42,69 @@ fn spark_read_side_padding2(
match args {
[ColumnarValue::Array(array),
ColumnarValue::Scalar(ScalarValue::Int32(Some(length)))] => {
match array.data_type() {
- DataType::Utf8 =>
spark_read_side_padding_internal::<i32>(array, *length, truncate),
- DataType::LargeUtf8 => {
- spark_read_side_padding_internal::<i64>(array, *length,
truncate)
+ DataType::Utf8 => spark_read_side_padding_internal::<i32>(
+ array,
+ truncate,
+ ColumnarValue::Scalar(ScalarValue::Int32(Some(*length))),
+ ),
+ DataType::LargeUtf8 => spark_read_side_padding_internal::<i64>(
+ array,
+ truncate,
+ ColumnarValue::Scalar(ScalarValue::Int32(Some(*length))),
+ ),
+ // Dictionary support required for SPARK-48498
+ DataType::Dictionary(_, value_type) => {
+ let dict = as_dictionary_array::<Int32Type>(array);
+ let col = if value_type.as_ref() == &DataType::Utf8 {
+ spark_read_side_padding_internal::<i32>(
+ dict.values(),
+ truncate,
+
ColumnarValue::Scalar(ScalarValue::Int32(Some(*length))),
+ )?
+ } else {
+ spark_read_side_padding_internal::<i64>(
+ dict.values(),
+ truncate,
+
ColumnarValue::Scalar(ScalarValue::Int32(Some(*length))),
+ )?
+ };
+ // col consists of an array, so arg of to_array() is not
used. Can be anything
+ let values = col.to_array(0)?;
+ let result = DictionaryArray::try_new(dict.keys().clone(),
values)?;
+ Ok(ColumnarValue::Array(make_array(result.into())))
}
+ other => Err(DataFusionError::Internal(format!(
+ "Unsupported data type {other:?} for function
rpad/read_side_padding",
+ ))),
+ }
+ }
+ [ColumnarValue::Array(array), ColumnarValue::Array(array_int)] => {
+ match array.data_type() {
+ DataType::Utf8 => spark_read_side_padding_internal::<i32>(
+ array,
+ truncate,
+ ColumnarValue::Array(Arc::<dyn
arrow::array::Array>::clone(array_int)),
+ ),
+ DataType::LargeUtf8 => spark_read_side_padding_internal::<i64>(
+ array,
+ truncate,
+ ColumnarValue::Array(Arc::<dyn
arrow::array::Array>::clone(array_int)),
+ ),
// Dictionary support required for SPARK-48498
Review Comment:
Same question.
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