Namit Jain created HIVE-3909:
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Summary: Wrong data due to HIVE-2820
Key: HIVE-3909
URL: https://issues.apache.org/jira/browse/HIVE-3909
Project: Hive
Issue Type: Bug
Reporter: Namit Jain
Consider the query:
~/hive/hive1$ more ql/src/test/queries/clientpositive/join_reorder4.q
CREATE TABLE T1(key1 STRING, val1 STRING) STORED AS TEXTFILE;
CREATE TABLE T2(key2 STRING, val2 STRING) STORED AS TEXTFILE;
CREATE TABLE T3(key3 STRING, val3 STRING) STORED AS TEXTFILE;
LOAD DATA LOCAL INPATH '../data/files/T1.txt' INTO TABLE T1;
LOAD DATA LOCAL INPATH '../data/files/T2.txt' INTO TABLE T2;
LOAD DATA LOCAL INPATH '../data/files/T3.txt' INTO TABLE T3;
set hive.auto.convert.join=true;
explain select /*+ STREAMTABLE(a) */ a.*, b.*, c.* from T1 a join T2 b on
a.key1=b.key2 join T3 c on a.key1=c.key3;
select /*+ STREAMTABLE(a) */ a.*, b.*, c.* from T1 a join T2 b on a.key1=b.key2
join T3 c on a.key1=c.key3;
explain select /*+ STREAMTABLE(b) */ a.*, b.*, c.* from T1 a join T2 b on
a.key1=b.key2 join T3 c on a.key1=c.key3;
select /*+ STREAMTABLE(b) */ a.*, b.*, c.* from T1 a join T2 b on a.key1=b.key2
join T3 c on a.key1=c.key3;
explain select /*+ STREAMTABLE(c) */ a.*, b.*, c.* from T1 a join T2 b on
a.key1=b.key2 join T3 c on a.key1=c.key3;
select /*+ STREAMTABLE(c) */ a.*, b.*, c.* from T1 a join T2 b on a.key1=b.key2
join T3 c on a.key1=c.key3;
select /*+ STREAMTABLE(b) */ a.*, b.*, c.* from T1 a join T2 b on a.key1=b.key2
join T3 c on a.key1=c.key3;
returns:
2 12 2 12 2 22
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