c-thiel commented on code in PR #331:
URL: https://github.com/apache/iceberg-rust/pull/331#discussion_r1690898177


##########
crates/iceberg/src/spec/table_metadata.rs:
##########
@@ -144,8 +144,24 @@ impl TableMetadata {
 
     /// Returns last updated time.
     #[inline]
-    pub fn last_updated_ms(&self) -> DateTime<Utc> {
-        Utc.timestamp_millis_opt(self.last_updated_ms).unwrap()
+    pub fn last_updated_timestamp(&self) -> Result<DateTime<Utc>> {
+        match Utc.timestamp_millis_opt(self.last_updated_ms) {
+            MappedLocalTime::Single(t) => Ok(t),
+            MappedLocalTime::Ambiguous(_, _) => Err(Error::new(
+                ErrorKind::Unexpected,
+                "Ambiguous timestamp in table metadata last updated",
+            )),
+            MappedLocalTime::None => Err(Error::new(
+                ErrorKind::Unexpected,
+                "Invalid timestamp in table metadata last updated",

Review Comment:
   
https://github.com/c-thiel/iceberg-rust/commit/ea7f2ea9e35be6d4f42e89a9e22938661272e209



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