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https://issues.apache.org/jira/browse/HIVE-11931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Xiaomeng Huang reassigned HIVE-11931:
-------------------------------------
Assignee: Xiaomeng Huang
> Join sql cannot get result
> --------------------------
>
> Key: HIVE-11931
> URL: https://issues.apache.org/jira/browse/HIVE-11931
> Project: Hive
> Issue Type: Bug
> Components: Hive, Query Planning, Query Processor, SQL
> Affects Versions: 1.1.1, 1.2.1
> Reporter: NING DING
> Assignee: Xiaomeng Huang
> Attachments: 000000_0
>
>
> I found a join issue in hive-1.2.1 and hive-1.1.1.
> The create table sql is as below.
> {code}
> CREATE TABLE IF NOT EXISTS join_case(
> orderid bigint,
> tradeitemid bigint,
> id bigint
> ) ROW FORMAT DELIMITED
> FIELDS TERMINATED BY ','
> LINES TERMINATED BY '\n'
> STORED AS TEXTFILE;
> {code}
> Please put attached sample data file 000000_0 in /tmp/join_case folder.
> Then load data.
> {code}
> LOAD DATA LOCAL INPATH '/tmp/join_case/000000_0' OVERWRITE INTO TABLE
> join_case;
> {code}
> Run the following sql, but cannot get searching result.
> {code}
> select a.id from
> (
> select orderid as orderid, max(id) as id from join_case group by orderid
> ) a
> join
> (
> select id as id , orderid as orderid from join_case
> ) b
> on a.id = b.id limit 10;
> {code}
> This issue also occurs in hive-1.1.0-cdh5.4.5.
> But in apache hive-1.0.1 the above sql can return 10 rows.
> After exchanging the sequence of "orderid as orderid" and "max(id) as id",
> the following sql can get result in hive-1.2.1 and hive-1.1.1.
> {code}
> select a.id from
> (
> select max(id) as id, orderid as orderid from join_case group by orderid
> ) a
> join
> (
> select id as id , orderid as orderid from join_case
> ) b
> on a.id = b.id limit 10;
> {code}
> Also, the following sql can get results in hive-1.2.1 and hive-1.1.1.
> {code}
> select a.id from
> (
> select orderid as orderid, id as id from join_case group by orderid, id
> ) a
> join
> (
> select id as id , orderid as orderid from join_case
> ) b
> on a.id = b.id limit 10;
> {code}
> Anyone can take a look at this issue?
> Thanks.
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