MartinKolbAtWork commented on code in PR #12227:
URL: https://github.com/apache/datafusion/pull/12227#discussion_r1738430697
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datafusion/functions/src/datetime/to_date.rs:
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@@ -118,3 +134,52 @@ impl ScalarUDFImpl for ToDateFunc {
}
}
}
+
+#[cfg(test)]
+mod tests {
+ use arrow::{compute::kernels::cast_utils::Parser, datatypes::Date32Type};
+ use datafusion_common::ScalarValue;
+ use datafusion_expr::{ColumnarValue, ScalarUDFImpl};
+
+ use super::ToDateFunc;
+
+ #[test]
+ fn test_year_9999() {
+ let date_str = "9999-12-31";
Review Comment:
Thanks for the suggestions. I added tests for (almost) all the examples you
mentioned. To make negative years work, I had to adapt the code, because
currently negative years also do not work.
I intentionally did not add support for 5-digit years, because not even the
ISO 8601 standard supports them.
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