[TAJO-1876] TaskImpl potentially may miss some TableDesc if they are duplicated.

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Fix Version/s: 0.13.0
• Assignee: Unassigned
• Reporter: Hyunsik Choi
• Created: 23/Sep/15 00:51
• Updated: 02/Dec/17 17:31

Description

See TaskImpl::updateDescsForScanNodes. A plan part can include duplicated canonical names if derived subqueries are included in the plan part.

private void updateDescsForScanNodes(NodeType nodeType) {
    assert nodeType == NodeType.SCAN || nodeType == NodeType.PARTITIONS_SCAN || nodeType == NodeType.INDEX_SCAN;
    LogicalNode[] scanNodes = PlannerUtil.findAllNodes(plan, nodeType);
    if (scanNodes != null) {
      for (LogicalNode node : scanNodes) {
        ScanNode scanNode = (ScanNode) node;
        descs.put(scanNode.getCanonicalName(), scanNode.getTableDesc());
      }
    }
  }