Hanifi Gunes created DRILL-2719:
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Summary: Behavior of ValueVector#getBuffers(clear) is inconsistent
across VV types
Key: DRILL-2719
URL: https://issues.apache.org/jira/browse/DRILL-2719
Project: Apache Drill
Issue Type: Bug
Reporter: Hanifi Gunes
Assignee: Hanifi Gunes
The major cause of inconsistency here is that reference count does not change
upon a call to BaseDataVV#getBuffers. However, it does change when the method
is invoked on a composite vector type. See for instance VariableLengthVV[1] or
a NullableVV[2].
The proposal is to make this behavior consistent first and later we can
consider separating out the logic that clears a vector from the logic that
returns underlying buffers.
[1]:
https://github.com/apache/drill/blob/master/exec/java-exec/src/main/codegen/templates/VariableLengthVectors.java#L151
[2]:
https://github.com/apache/drill/blob/master/exec/java-exec/src/main/codegen/templates/NullableValueVectors.java#L82
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