Yerui Sun created KYLIN-1274:
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Summary: Query from JDBC is partial results by default
Key: KYLIN-1274
URL: https://issues.apache.org/jira/browse/KYLIN-1274
Project: Kylin
Issue Type: Bug
Components: Driver - JDBC
Affects Versions: 1.2
Reporter: Yerui Sun
Assignee: Yerui Sun
Fix For: 1.3, 2.0
How to produce this problem: create a query with the result over 10000 rows,
and query with 'order by desc'. Check the first row, it's not the last row in
all result, but a middle row, maybe the 10000th row.
Checked the query log in kylin server, found 'Accept Partial: false',
indicating it's indeed a partial query.
The reason is, JDBC driver sent the QueryRequest with json encoding, and parsed
into SQLRequest in server side. By default, QueryRequest only has sql and
project parameters, and leave all other attributes as default in SQLRequest,
and in SQLRequest, acceptPartial is true. That's why the query was processed as
a partial query.
The solution to solve this is simple, add acceptPartial as false in
QueryRequest, and update JDBC driver.
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