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https://issues.apache.org/jira/browse/DRILL-2288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14984760#comment-14984760
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ASF GitHub Bot commented on DRILL-2288:
---------------------------------------
Github user jacques-n commented on a diff in the pull request:
https://github.com/apache/drill/pull/228#discussion_r43597780
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/project/ProjectRecordBatch.java
---
@@ -122,6 +122,7 @@ protected void killIncoming(final boolean sendUpstream)
{
@Override
public IterOutcome innerNext() {
+ recordCount = 0;
--- End diff --
Why don't you add this to parent class rather than each child of the
parent? (Either AbstractRecordBatch or AbstractSingleRecordBatch.)
> ScanBatch violates IterOutcome protocol for zero-row sources [was: missing
> JDBC metadata (schema) for 0-row results...]
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: DRILL-2288
> URL: https://issues.apache.org/jira/browse/DRILL-2288
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - Information Schema
> Reporter: Daniel Barclay (Drill)
> Assignee: Daniel Barclay (Drill)
> Fix For: 1.3.0
>
> Attachments: Drill2288NoResultSetMetadataWhenZeroRowsTest.java
>
>
> The ResultSetMetaData object from getMetadata() of a ResultSet is not set up
> (getColumnCount() returns zero, and trying to access any other metadata
> throws IndexOutOfBoundsException) for a result set with zero rows, at least
> for one from DatabaseMetaData.getColumns(...).
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