Github user arina-ielchiieva commented on a diff in the pull request:
https://github.com/apache/drill/pull/889#discussion_r131871360
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/join/JoinUtils.java
---
@@ -231,6 +236,12 @@ public static boolean isScalarSubquery(RelNode root) {
return true;
}
}
+ if(!hasMoreInputs && currentRel!=null){
+ double rowSize =
RelMetadataQuery.instance().getMaxRowCount(currentRel);
+ if(rowSize==1){
--- End diff --
Please add spaces: `if (rowSize == 1) {`
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