comphead commented on code in PR #12620:
URL: https://github.com/apache/datafusion/pull/12620#discussion_r1775604205
##########
datafusion/physical-plan/src/aggregates/group_values/column_wise.rs:
##########
@@ -78,6 +79,38 @@ impl GroupValuesColumn {
random_state: Default::default(),
})
}
+
+ /// Returns true if [`GroupValuesColumn`] supports for the specified schema
+ pub fn supported_schema(schema: &Schema) -> bool {
+ schema
+ .fields()
+ .iter()
+ .map(|f| f.data_type())
+ .all(Self::supported_type)
+ }
+
+ /// Returns true if the specified data type is supported by
[`GroupValuesColumn`]
+ fn supported_type(data_type: &DataType) -> bool {
+ matches!(
+ *data_type,
+ DataType::Int8
Review Comment:
should we use `DataType::is_signed_integer` `DataType::is_unsigned_integer`
we can also use `is_numeric` but it includes Decimals
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