[HIVE-8523] Potential null dereference in DDLSemanticAnalyzer#addInputsOutputsAlterTable()

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.1.0
• Assignee: Navis Ryu
• Reporter: Ted Yu
• Created: 20/Oct/14 19:09
• Updated: 12/Feb/15 23:41
• Resolved: 09/Dec/14 19:10

Description

Here is related code:

        if (desc == null
            || !AlterTableDesc.doesAlterTableTypeSupportPartialPartitionSpec(desc.getOp())) {
          throw new SemanticException(
              ErrorMsg.ALTER_TABLE_TYPE_PARTIAL_PARTITION_SPEC_NO_SUPPORTED, desc.getOp().name());

If desc is null, the construction of SemanticException would trigger NPE due to the call to desc.getOp().

Issue Links

• relates to: HIVE-8579 Guaranteed NPE in DDLSemanticAnalyzer