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https://issues.apache.org/jira/browse/HIVE-24198?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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mahesh kumar behera reassigned HIVE-24198:
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> Map side SMB join produceing wrong result
> -----------------------------------------
>
> Key: HIVE-24198
> URL: https://issues.apache.org/jira/browse/HIVE-24198
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: mahesh kumar behera
> Assignee: mahesh kumar behera
> Priority: Major
>
> CREATE TABLE tbl1_n5(key int, value string) CLUSTERED BY (key) SORTED BY
> (key) INTO 2 BUCKETS ;
> CREATE TABLE tbl2_n4(key int, value string) CLUSTERED BY (key) SORTED BY
> (key) INTO 2 BUCKETS;
> set hive.auto.convert.join=true;
> set hive.optimize.bucketmapjoin = true;
> set hive.optimize.bucketmapjoin.sortedmerge = true;
> set hive.input.format =
> org.apache.hadoop.hive.ql.io.BucketizedHiveInputFormat;
> set hive.auto.convert.sortmerge.join=true;
> set hive.auto.convert.sortmerge.join.to.mapjoin=false;
> set hive.auto.convert.join.noconditionaltask.ize=1;
> set hive.optimize.semijoin.conversion = false;
> insert into tbl2_n4 values (2, 'val_2'), (0, 'val_0'), (0, 'val_0'), (0,
> 'val_0'), (4, 'val_4') ,(5, 'val_5') ,(5, 'val_5') , (5, 'val_5'), (8,
> 'val_8'), (9, 'val_9');
> insert into tbl1_n5 values (2, 'val_2'), (0, 'val_0'), (0, 'val_0'), (0,
> 'val_0'), (4, 'val_4') ,(5, 'val_5') ,(5, 'val_5') , (5, 'val_5'), (8,
> 'val_8'), (9, 'val_9');
>
> Select * from (select b.key as key, count(*) as value from tbl1_n5 b where
> key < 6 group by b.key) subq1 join (select a.key as key, a.value as value
> from tbl2_n4 a where key < 6) subq2 on subq1.key = subq2.key;
>
> The above select is producing 0,0,0,2,4,5,5,5,5,5,5 instead of 0,0,0,2,4,5,5,5
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