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From Serhii-Harnyk <...@git.apache.org>
Subject [GitHub] drill pull request #748: DRILL-5263: Prevent left NLJoin with non scalar sub...
Date Wed, 15 Feb 2017 15:49:17 GMT
Github user Serhii-Harnyk commented on a diff in the pull request:

    https://github.com/apache/drill/pull/748#discussion_r101308389
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/planner/physical/NestedLoopJoinPrule.java
---
    @@ -49,7 +49,7 @@ protected boolean checkPreconditions(DrillJoinRel join, RelNode left,
RelNode ri
           PlannerSettings settings) {
         JoinRelType type = join.getJoinType();
     
    -    if (! (type == JoinRelType.INNER || type == JoinRelType.LEFT)) {
    +    if (!(type == JoinRelType.INNER || (type == JoinRelType.LEFT && JoinUtils.hasScalarSubqueryInput(left,
right)))) {
    --- End diff --
    
    Yes, you a right, we should return error in this case too. 


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