fallintoplace opened a new pull request, #2508:
URL: https://github.com/apache/iceberg-go/pull/2508

   ## What
   - Reject out-of-range string casts to nanosecond timestamp types.
   
   ## Why
   - `UnixNano()` wraps outside the signed 64-bit range.
   
   ## Implementation
   - Check the parsed time before converting it.
   
   ## References
   - [Iceberg spec: primitive 
types](https://iceberg.apache.org/spec/#primitive-types)
   - [Java 
`Literals`](https://github.com/apache/iceberg/blob/main/api/src/main/java/org/apache/iceberg/expressions/Literals.java#L2645-L2657)
   - [Java 
`DateTimeUtil`](https://github.com/apache/iceberg/blob/main/api/src/main/java/org/apache/iceberg/util/DateTimeUtil.java#L899-L901)
   - This covers string parsing; 
[#2500](https://github.com/apache/iceberg-go/pull/2500) covers microsecond 
conversion.
   


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