[
https://issues.apache.org/jira/browse/KYLIN-5016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17370183#comment-17370183
]
ASF GitHub Bot commented on KYLIN-5016:
---------------------------------------
hit-lacus merged pull request #1671:
URL: https://github.com/apache/kylin/pull/1671
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
> Avoid potential NPE issue in RDBMS Pushdown case
> ------------------------------------------------
>
> Key: KYLIN-5016
> URL: https://issues.apache.org/jira/browse/KYLIN-5016
> Project: Kylin
> Issue Type: Improvement
> Components: RDBMS Source
> Affects Versions: v2.6.5, v3.1.2
> Reporter: rongchuan.jin
> Assignee: rongchuan.jin
> Priority: Minor
>
> When I use pushdown with RDBMS source, I encounter some error when convert
> sql which leads to pushdown failing.
> I find below stacktrace like
> {code:java}
> 2020-12-23 13:14:10,212 ERROR [Query a1bf28bb-de28-433e-ab96-28ce234a1a4a-76]
> conv.SqlConverter : Failed to default convert sql, will use the origin input:
> select 1 from `MOVIES_10M`.`DIM_MOVIES_10M` 2LIMIT 500
> 3java.lang.NullPointerException 4 at
> org.apache.calcite.sql.SqlCall.unparse(SqlCall.java:103) 5 at
> org.apache.calcite.sql.pretty.SqlPrettyWriter.format(SqlPrettyWriter.java:806)
> 6 at
> org.apache.kylin.sdk.datasource.framework.conv.SqlConverter.convertSql(SqlConverter.java:69)
> 7 at
> org.apache.kylin.sdk.datasource.framework.JdbcConnector.convertSql(JdbcConnector.java:91)
> 8 at
> org.apache.kylin.sdk.datasource.PushDownRunnerSDKImpl.executeQuery(PushDownRunnerSDKImpl.java:55)
> 9 at
> org.apache.kylin.query.util.PushDownUtil.tryPushDownQuery(PushDownUtil.java:173)
> 10 at
> org.apache.kylin.query.util.PushDownUtil.tryPushDownSelectQuery(PushDownUtil.java:103)
> 11 at
> org.apache.kylin.rest.service.QueryService.tryPushDownSelectQuery(QueryService.java:773)
> 12 at
> org.apache.kylin.rest.service.QueryService.pushDownQuery(QueryService.java:709)
> 13 at
> org.apache.kylin.rest.service.QueryService.queryWithSqlMassage(QueryService.java:700)
> 14 at
> org.apache.kylin.rest.service.QueryService.query(QueryService.java:231) 15 at
> org.apache.kylin.rest.service.QueryService.queryAndUpdateCache(QueryService.java:577)
> 16 at
> org.apache.kylin.rest.service.QueryService.queryWithCache(QueryService.java:512)
> 17 at
> org.apache.kylin.rest.service.QueryService.doQueryWithCache(QueryService.java:395){code}
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
