[HIVE-9107] Non-lowercase field names in structs causes NullPointerException

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 0.13.1
• Assignee: Unassigned
• Reporter: Jim Pivarski
• Created: 15/Dec/14 21:17
• Updated: 17/Dec/14 06:34
• Resolved: 17/Dec/14 06:34

Description

If an HQL query references a struct field with mixed or upper case, Hive throws a NullPointerException instead of giving a better error message or simply lower-casing the name.

For example, if I have a struct in column mystruct with a field named myfield, a query like

select mystruct.MyField from tablename;

passes the local initialize (it submits an M-R job) but the remote initialize jobs throw NullPointerExceptions. The exception is on line 61 of org.apache.hadoop.hive.ql.exec.ExprNodeFieldEvaluator, which is right after the field name is extracted and not forced to be lower-case.

Issue Links

• duplicates: HIVE-8870 errors when selecting a struct field within an array from ORC based tables