vvysotskyi opened a new pull request #2291:
URL: https://github.com/apache/drill/pull/2291


   # [DRILL-7986](https://issues.apache.org/jira/browse/DRILL-7986): Drill 
crashes when using the streaming connection with arrays
   
   ## Description
   When copying data from incoming batch to row set, 
`SingleVectorBufferAccessor` was holding outdated byte buffer that belonged to 
value vector from the previous batch. It caused JVM crashes when Drill tried to 
access the data from the outdated buffer.
   
   Existing API assumed to call `BufferAccessor.rebind()` method every time 
buffer from one vector to another one was exchanged but exchange process cannot 
be controlled by row set API, and since we already hold `VectorAccessor` that 
has value vector with actual byte buffer, this method became excessive.
   
   ## Documentation
   NA
   
   ## Testing
   Checked manually, no unit test is added since the issue is reproduced 
coincidentally for and for a specific set of conditions.
   


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