[IMPALA-2141] UnionNode::GetNext() doesn't check for query errors

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.1.1
• Fix Version/s: Impala 2.3.0, Impala 2.2.9
• Labels: correctness query-lifecycle
• Target Version: Impala 2.2.9
• Assignee: Sailesh Mukil
• Reporter: Sailesh Mukil
• Created: 15/Jul/15 22:28
• Updated: 20/Dec/15 00:05
• Resolved: 28/Jul/15 17:50

Description

When a UDF calls SetError() in the select list, it does not fail the query. This is because UnionNode::GetNext() does not check for the error status after it calls UnionNode::EvalAndMaterializeExprs().

Issue Links

• relates to: IMPALA-1746 QueryExecState doesn't check for query cancellation or errors