>From <[email protected]>:
[email protected] has uploaded this change for review. (
https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/17810 )
Change subject: [ASTERIXDB-3261][COMP] Limit Costing
......................................................................
[ASTERIXDB-3261][COMP] Limit Costing
Change-Id: Ifd03a57f893e7c22ee3bc39427f1556ae572af5c
---
M
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/JoinEnum.java
1 file changed, 12 insertions(+), 2 deletions(-)
git pull ssh://asterix-gerrit.ics.uci.edu:29418/asterixdb
refs/changes/10/17810/1
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: 1
Gerrit-Owner: [email protected]
Gerrit-MessageType: newchange
