mahesh kumar behera created HIVE-24198:
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Summary: 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
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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