COUNT(*) on external Iceberg table fails — NullPointerException: Cannot invoke "java.lang.Long.longValue()" because StructLike.get(...) returned null

[pravatbiswas]

Error Description

When running a simple query on an external Iceberg table through Doris (via Trino catalog integration), the query fails:

Query:

SELECT COUNT(1) FROM db.table_name;

Error:

SQL Error [1105] [HY000]: errCode = 2, detailMessage =
Cannot invoke "java.lang.Long.longValue()" because the return value of
"org.apache.iceberg.StructLike.get(int, java.lang.Class)" is null

This appears to be a NullPointerException triggered inside the Iceberg reader used by Doris/Trino, caused by a metadata or snapshot field that Doris expects to be non-null.

Can anyone pls help me in identifying the root cause and how to resolve this.