viirya commented on code in PR #6069:
URL: https://github.com/apache/arrow-datafusion/pull/6069#discussion_r1174529356
##########
datafusion/physical-expr/src/expressions/datetime.rs:
##########
@@ -151,13 +143,18 @@ impl PhysicalExpr for DateTimeIntervalExpr {
operand_lhs.sub(&operand_rhs)?
}))
}
- (ColumnarValue::Array(array_lhs),
ColumnarValue::Scalar(operand_rhs)) => {
- evaluate_temporal_array(array_lhs, sign, &operand_rhs)
- }
-
- (ColumnarValue::Array(array_lhs), ColumnarValue::Array(array_rhs))
=> {
- evaluate_temporal_arrays(&array_lhs, sign, &array_rhs)
+ // This function evaluates temporal array vs scalar operations,
such as timestamp - timestamp,
+ // interval + interval, timestamp + interval, and interval +
timestamp. It takes two arrays as input
+ // and an integer sign representing the operation (+1 for addition
and -1 for subtraction).
Review Comment:
```suggestion
// interval + interval, timestamp + interval, and interval +
timestamp. It takes one array and one scalar as input
// and an integer sign representing the operation (+1 for
addition and -1 for subtraction).
```
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