Author: jcamacho
Date: Fri Apr 3 08:03:28 2015
New Revision: 1671011
URL: http://svn.apache.org/r1671011
Log:
HIVE-10195 : CBO (Calcite Return Path): More details for Join operator in CBO
cost based algorithm selection [CBO branch] (Jesus Camacho Rodriguez, reviewed
by Ashutosh Chauhan)
Modified:
hive/branches/cbo/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/reloperators/HiveJoin.java
Modified:
hive/branches/cbo/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/reloperators/HiveJoin.java
URL:
http://svn.apache.org/viewvc/hive/branches/cbo/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/reloperators/HiveJoin.java?rev=1671011&r1=1671010&r2=1671011&view=diff
==============================================================================
---
hive/branches/cbo/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/reloperators/HiveJoin.java
(original)
+++
hive/branches/cbo/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/reloperators/HiveJoin.java
Fri Apr 3 08:03:28 2015
@@ -26,6 +26,7 @@ import java.util.Set;
import org.apache.calcite.plan.RelOptCluster;
import org.apache.calcite.plan.RelOptCost;
import org.apache.calcite.plan.RelOptPlanner;
+import org.apache.calcite.plan.RelOptUtil;
import org.apache.calcite.plan.RelTraitSet;
import org.apache.calcite.rel.InvalidRelException;
import org.apache.calcite.rel.RelCollations;
@@ -156,7 +157,7 @@ public class HiveJoin extends Join imple
// 4. For each possible algorithm, calculate cost, and select best
RelOptCost selfCost = null;
if (LOG.isDebugEnabled()) {
- LOG.debug("Join algorithm selection for: " + this);
+ LOG.debug("Join algorithm selection for:\n" + RelOptUtil.toString(this));
}
for (JoinAlgorithm possibleAlgorithm : possibleAlgorithms) {
switch (possibleAlgorithm) {
