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https://issues.apache.org/jira/browse/HIVE-3633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13535954#comment-13535954
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Hudson commented on HIVE-3633:
------------------------------
Integrated in Hive-trunk-h0.21 #1865 (See
[https://builds.apache.org/job/Hive-trunk-h0.21/1865/])
HIVE-3633. sort-merge join does not work with sub-queries. (njain via
kevinwilfong) (Revision 1423731)
Result = SUCCESS
kevinwilfong :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1423731
Files :
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/DummyStoreOperator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/OperatorFactory.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/SMBMapJoinOperator.java
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/AbstractBucketJoinProc.java
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/BucketMapJoinOptimizer.java
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/SortedMergeBucketMapJoinOptimizer.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/QB.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/QBJoinTree.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/TableAccessAnalyzer.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/plan/DummyStoreDesc.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/plan/SMBJoinDesc.java
* /hive/trunk/ql/src/test/queries/clientpositive/smb_mapjoin_14.q
* /hive/trunk/ql/src/test/results/clientpositive/smb_mapjoin_14.q.out
> sort-merge join does not work with sub-queries
> ----------------------------------------------
>
> Key: HIVE-3633
> URL: https://issues.apache.org/jira/browse/HIVE-3633
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Namit Jain
> Fix For: 0.11
>
> Attachments: hive.3633.10.patch, hive.3633.11.patch,
> hive.3633.1.patch, hive.3633.2.patch, hive.3633.3.patch, hive.3633.4.patch,
> hive.3633.5.patch, hive.3633.6.patch, hive.3633.7.patch, hive.3633.8.patch,
> hive.3633.9.patch
>
>
> Consider the following query:
> create table smb_bucket_1(key int, value string) CLUSTERED BY (key) SORTED BY
> (key) INTO 6 BUCKETS STORED AS TEXTFILE;
> create table smb_bucket_2(key int, value string) CLUSTERED BY (key) SORTED BY
> (key) INTO 6 BUCKETS STORED AS TEXTFILE;
> -- load the above tables
> set hive.optimize.bucketmapjoin = true;
> set hive.optimize.bucketmapjoin.sortedmerge = true;
> set hive.input.format =
> org.apache.hadoop.hive.ql.io.BucketizedHiveInputFormat;
> explain
> select count(*) from
> (
> select /*+mapjoin(a)*/ a.key as key1, b.key as key2, a.value as value1,
> b.value as value2
> from smb_bucket_1 a join smb_bucket_2 b on a.key = b.key)
> subq;
> The above query does not use sort-merge join. This would be very useful as we
> automatically convert the queries to use sorting and bucketing properties for
> join.
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