[DRILL-7084] ResultSet getObject method throws not implemented exception if the column type is NULL

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.15.0
• Fix Version/s: 1.17.0
• Labels: ready-to-commit
• Assignee: Anton Gozhiy
• Reporter: Anton Gozhiy
• Reviewer: Bohdan Kazydub
• Created: 07/Mar/19 12:29
• Updated: 05/Aug/19 07:45
• Resolved: 05/Aug/19 07:45

Description

This method is used by some tools, for example DBeaver. Not reproduced with sqlline or Drill Web-UI.

Query:

select coalesce(n_name1, n_name2) from cp.`tpch/nation.parquet` limit 1;

Expected result:
null

Actual result:
Exception is thrown:

java.lang.RuntimeException: not implemented
	at oadd.org.apache.calcite.avatica.AvaticaSite.notImplemented(AvaticaSite.java:421)
	at oadd.org.apache.calcite.avatica.AvaticaSite.get(AvaticaSite.java:380)
	at org.apache.drill.jdbc.impl.DrillResultSetImpl.getObject(DrillResultSetImpl.java:183)
	at org.jkiss.dbeaver.model.impl.jdbc.exec.JDBCResultSetImpl.getObject(JDBCResultSetImpl.java:628)
	at org.jkiss.dbeaver.model.impl.jdbc.data.handlers.JDBCObjectValueHandler.fetchColumnValue(JDBCObjectValueHandler.java:60)
	at org.jkiss.dbeaver.model.impl.jdbc.data.handlers.JDBCAbstractValueHandler.fetchValueObject(JDBCAbstractValueHandler.java:49)
	at org.jkiss.dbeaver.ui.controls.resultset.ResultSetDataReceiver.fetchRow(ResultSetDataReceiver.java:122)
	at org.jkiss.dbeaver.runtime.sql.SQLQueryJob.fetchQueryData(SQLQueryJob.java:729)
	at org.jkiss.dbeaver.runtime.sql.SQLQueryJob.executeStatement(SQLQueryJob.java:465)
	at org.jkiss.dbeaver.runtime.sql.SQLQueryJob.lambda$0(SQLQueryJob.java:392)
	at org.jkiss.dbeaver.model.DBUtils.tryExecuteRecover(DBUtils.java:1598)
	at org.jkiss.dbeaver.runtime.sql.SQLQueryJob.executeSingleQuery(SQLQueryJob.java:390)
	at org.jkiss.dbeaver.runtime.sql.SQLQueryJob.extractData(SQLQueryJob.java:822)
	at org.jkiss.dbeaver.ui.editors.sql.SQLEditor$QueryResultsContainer.readData(SQLEditor.java:2532)
	at org.jkiss.dbeaver.ui.controls.resultset.ResultSetJobDataRead.lambda$0(ResultSetJobDataRead.java:93)
	at org.jkiss.dbeaver.model.DBUtils.tryExecuteRecover(DBUtils.java:1598)
	at org.jkiss.dbeaver.ui.controls.resultset.ResultSetJobDataRead.run(ResultSetJobDataRead.java:91)
	at org.jkiss.dbeaver.model.runtime.AbstractJob.run(AbstractJob.java:101)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

Issue Links

• links to: GitHub Pull Request #1825