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https://issues.apache.org/jira/browse/PHOENIX-1556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16361630#comment-16361630
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Hudson commented on PHOENIX-1556:
---------------------------------
FAILURE: Integrated in Jenkins build Phoenix-master #1934 (See
[https://builds.apache.org/job/Phoenix-master/1934/])
PHOENIX-1556 Base hash versus sort merge join decision on cost (maryannxue: rev
9461d0d6a299bb3cbcf53905d7e9b73895a99299)
* (edit)
phoenix-core/src/it/java/org/apache/phoenix/end2end/CostBasedDecisionIT.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/util/CostUtil.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/compile/QueryPlan.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/execute/SortMergeJoinPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/UnionPlan.java
* (add)
phoenix-core/src/main/java/org/apache/phoenix/execute/visitor/AvgRowWidthVisitor.java
* (add)
phoenix-core/src/main/java/org/apache/phoenix/execute/visitor/RowCountVisitor.java
* (edit)
phoenix-core/src/test/java/org/apache/phoenix/query/ParallelIteratorsSplitTest.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/jdbc/PhoenixStatement.java
* (add)
phoenix-core/src/main/java/org/apache/phoenix/execute/visitor/ByteCountVisitor.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/execute/CorrelatePlan.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/compile/QueryCompiler.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/execute/LiteralResultIterationPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/ScanPlan.java
* (add)
phoenix-core/src/main/java/org/apache/phoenix/execute/visitor/QueryPlanVisitor.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/execute/AggregatePlan.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/execute/ClientProcessingPlan.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/compile/ListJarsQueryPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/compile/JoinCompiler.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/execute/ClientAggregatePlan.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/execute/UnnestArrayPlan.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/execute/ClientScanPlan.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/execute/TupleProjectionPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/HashJoinPlan.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/compile/TraceQueryPlan.java
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/execute/CursorFetchPlan.java
> Base hash versus sort merge join decision on cost
> -------------------------------------------------
>
> Key: PHOENIX-1556
> URL: https://issues.apache.org/jira/browse/PHOENIX-1556
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: James Taylor
> Assignee: Maryann Xue
> Priority: Major
> Labels: CostBasedOptimization
> Attachments: PHOENIX-1556.patch
>
>
> At compile time, we know how many guideposts (i.e. how many bytes) will be
> scanned for the RHS table. We should, by default, base the decision of using
> the hash-join verus many-to-many join on this information.
> Another criteria (as we've seen in PHOENIX-4508) is whether or not the tables
> being joined are already ordered by the join key. In that case, it's better
> to always use the sort merge join.
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