[CALCITE-4308] JoinNode in Interpreter might fail with NPE for FULL join

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.25.0
• Component/s: core
• Assignee: Unassigned
• Reporter: Vladimir Sitnikov
• Created: 03/Oct/20 22:25
• Updated: 05/Mar/21 16:35

Description

https://github.com/apache/calcite/blob/64a0ca71038da14f0f883f169aa95df00d909e06/core/src/main/java/org/apache/calcite/interpreter/JoinNode.java#L85

    if (rel.getJoinType() == JoinRelType.FULL) {
      // send un-match rows for full join on right source
      List<Row> empty = new ArrayList<>();
      for (Row row: innerRows) { // <-- NPE here
        if (matchRowSet.contains(row)) {
          continue;
        }
        doSend(row, empty, JoinRelType.RIGHT);
      }
    }