alamb opened a new issue, #4424:
URL: https://github.com/apache/arrow-rs/issues/4424
**Describe the bug**
in version 41.0.0 an interval such as `.5 months` was parsed correctly
In version 42.0.0 (not yet released at the time of this writing) it fails
with an error: `NotYetImplemented("Unsupported Interval Expression with value
".5 months")`
**To Reproduce**
Try to parse `0.5`
Here is a unit test:
```diff
diff --git a/arrow-cast/src/parse.rs b/arrow-cast/src/parse.rs
index accce99b4..7984aeb9a 100644
--- a/arrow-cast/src/parse.rs
+++ b/arrow-cast/src/parse.rs
@@ -1798,6 +1798,16 @@ mod tests {
Interval::parse("-1.5 months -3.2 days", &config).unwrap(),
);
+ assert_eq!(
+ Interval::new(0i32, 15i32, 0),
+ Interval::parse("0.5 months", &config).unwrap(),
+ );
+
+ assert_eq!(
+ Interval::new(0i32, 15i32, 0),
+ Interval::parse(".5 months", &config).unwrap(),
+ );
+
assert_eq!(
Interval::new(2i32, 10i32, 9 * NANOS_PER_HOUR),
Interval::parse("2.1 months 7.25 days 3 hours",
&config).unwrap(),
```
The second case fails like this:
```
---- parse::tests::test_parse_interval stdout ----
thread 'parse::tests::test_parse_interval' panicked at 'called
`Result::unwrap()` on an `Err` value: NotYetImplemented("Unsupported Interval
Expression with value \".5 months\"")', arrow-cast/src/parse.rs:1808:51
stack backtrace:
```
**Expected behavior**
Both new cases should pass correctly
**Additional context**
Found while testing this upgrade in DataFusion
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