[google-cloud-bigquery] getLong(int) in BigQueryResultImpl returns int

[dbasedow0000]

When using getLong(int index) on a result set containing timestamps stored as int64 i receive negative values. Calling getObject(int index) and casting to Long works fine.

Environment details

OS type and version: MacOS 26.4.1
Java version: 21, 25, 26
Version(s): 2.57.1

Steps to reproduce

1. Execute a query with a very large integer value
2. use getLong(int) and compare it to the expected value

Any additional information below

The following line looks like the cause:

google-cloud-java/java-bigquery/google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/BigQueryResultImpl.java

Line 478 in d1585fc

return getInt(schemaFieldList.get(columnIndex).getName());

[jinseopkim0]

Thanks for opening the issue. If you have a support contract with Google, please create an issue in the support console instead of filing on GitHub. This will ensure a timely response.