stuartcarnie commented on code in PR #3034:
URL: https://github.com/apache/arrow-datafusion/pull/3034#discussion_r939757195
##########
datafusion/physical-expr/src/datetime_expressions.rs:
##########
@@ -502,6 +589,140 @@ mod tests {
});
}
+ #[test]
+ fn test_date_bin_single() {
+ use chrono::Duration;
+
+ let cases = vec![
+ (
+ (
+ Duration::minutes(15),
+ "2004-04-09T02:03:04.123456789Z",
+ "2001-01-01T00:00:00",
+ ),
+ "2004-04-09T02:00:00Z",
+ ),
+ (
+ (
+ Duration::minutes(15),
+ "2004-04-09T02:03:04.123456789Z",
+ "2001-01-01T00:02:30",
+ ),
+ "2004-04-09T02:02:30Z",
+ ),
+ (
+ (
+ Duration::minutes(15),
+ "2004-04-09T02:03:04.123456789Z",
+ "2005-01-01T00:02:30",
+ ),
+ "2004-04-09T02:02:30Z",
+ ),
+ ];
+
+ cases
+ .iter()
+ .for_each(|((stride, source, origin), expected)| {
+ let stride1 = stride.num_nanoseconds().unwrap();
+ let source1 = string_to_timestamp_nanos(source).unwrap();
+ let origin1 = string_to_timestamp_nanos(origin).unwrap();
+
+ let expected1 = string_to_timestamp_nanos(expected).unwrap();
+ let result = date_bin_single(stride1, source1, origin1);
+ assert_eq!(result, expected1, "{} = {}", source, expected);
+ })
+ }
+
+ #[test]
+ fn test_date_bin() {
+ let res = date_bin(&[
+ ColumnarValue::Scalar(ScalarValue::IntervalDayTime(Some(1))),
+ ColumnarValue::Scalar(ScalarValue::TimestampNanosecond(Some(1),
None)),
+ ColumnarValue::Scalar(ScalarValue::TimestampNanosecond(Some(1),
None)),
+ ]);
+ assert!(res.is_ok());
+
+ let mut builder = TimestampNanosecondArray::builder(5);
+ builder.append_slice((1..6).collect::<Vec<i64>>().as_slice());
+ let timestamps = Arc::new(builder.finish());
Review Comment:
Much nicer – thanks!
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