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https://issues.apache.org/jira/browse/KYLIN-2966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16223942#comment-16223942
]
liyang commented on KYLIN-2966:
-------------------------------
Interesting finding...
> push down jdbc column type id mapping
> -------------------------------------
>
> Key: KYLIN-2966
> URL: https://issues.apache.org/jira/browse/KYLIN-2966
> Project: Kylin
> Issue Type: Improvement
> Components: Query Engine
> Affects Versions: v2.1.0
> Reporter: 翟玉勇
> Assignee: liyang
> Priority: Minor
>
> when use presto for kylin pushdown engine，the column type of string is
> -16，calcite string is 12，do not mapping
> {code}
> at
> org.apache.kylin.jdbc.shaded.org.apache.calcite.avatica.Helper.createException(Helper.java:56)
> at
> org.apache.kylin.jdbc.shaded.org.apache.calcite.avatica.Helper.createException(Helper.java:41)
> at
> org.apache.kylin.jdbc.shaded.org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:156)
> at
> org.apache.kylin.jdbc.shaded.org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:218)
> at com.eleme.monitor.presto.KylinTest.main(KylinTest.java:34)
> Caused by: java.lang.RuntimeException: unknown type -16
> at
> org.apache.kylin.jdbc.shaded.org.apache.calcite.avatica.util.AbstractCursor.createAccessor(AbstractCursor.java:221)
> at
> org.apache.kylin.jdbc.shaded.org.apache.calcite.avatica.util.AbstractCursor.createAccessor(AbstractCursor.java:84)
> at
> org.apache.kylin.jdbc.shaded.org.apache.calcite.avatica.util.AbstractCursor.createAccessors(AbstractCursor.java:73)
> at
> org.apache.kylin.jdbc.shaded.org.apache.calcite.avatica.AvaticaResultSet.execute2(AvaticaResultSet.java:207)
> at org.apache.kylin.jdbc.KylinResultSet.execute(KylinResultSet.java:78)
> at
> org.apache.kylin.jdbc.shaded.org.apache.calcite.avatica.AvaticaConnection$1.execute(AvaticaConnection.java:607)
> at org.apache.kylin.jdbc.KylinMeta.prepareAndExecute(KylinMeta.java:111)
> at
> org.apache.kylin.jdbc.shaded.org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:615)
> at
> org.apache.kylin.jdbc.shaded.org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:148)
> ... 2 more
> {code}
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