>From Vijay Sarathy <[email protected]>:

Vijay Sarathy has submitted this change. ( 
https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/17810 )

Change subject: [ASTERIXDB-3261][COMP] Limit Costing
......................................................................

[ASTERIXDB-3261][COMP] Limit Costing

Change-Id: Ifd03a57f893e7c22ee3bc39427f1556ae572af5c
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/17810
Integration-Tests: Jenkins <[email protected]>
Tested-by: Jenkins <[email protected]>
Reviewed-by: Vijay Sarathy <[email protected]>
---
M 
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/JoinEnum.java
1 file changed, 16 insertions(+), 2 deletions(-)

Approvals:
  Vijay Sarathy: Looks good to me, approved
  Jenkins: Verified; Verified




diff --git 
a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/JoinEnum.java
 
b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/JoinEnum.java
index 9147184..9d38356 100644
--- 
a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/JoinEnum.java
+++ 
b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/JoinEnum.java
@@ -899,9 +899,10 @@
                         limit = 
Integer.parseInt(lop.getMaxObjects().getValue().toString());
                     }
                 }
-            }
-            if (op.getOperatorTag() == LogicalOperatorTag.ORDER) {
+            } else if (op.getOperatorTag() == LogicalOperatorTag.ORDER) {
                 return -1; // This is because we cant reduce the selectivity 
of a scan operator when an order by is present.
+            } else if (op.getOperatorTag() == LogicalOperatorTag.GROUP) {
+                return -1; // This is because we cant reduce the selectivity 
of a scan operator when a group by is present.
             }
             op = op.getInputs().get(0).getValue();
         }

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Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Change-Id: Ifd03a57f893e7c22ee3bc39427f1556ae572af5c
Gerrit-Change-Number: 17810
Gerrit-PatchSet: 2
Gerrit-Owner: [email protected]
Gerrit-Reviewer: Jenkins <[email protected]>
Gerrit-Reviewer: Vijay Sarathy <[email protected]>
Gerrit-MessageType: merged

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