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From "Daniel Barclay (Drill) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-2933) RecordBatchLoader.load(...) calls catch SchemaChangeException that load(...) never throws
Date Fri, 01 May 2015 04:07:06 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2933?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daniel Barclay (Drill) updated DRILL-2933:
------------------------------------------
    Description: 
There are about 9 calls to RecordBatchLoader.load(...) that apparently try to detect schema
changes by catching SchemaChangeException.

However, RecordBatchLoader.load(...) never actually throws SchemaChangeException to indicate
a schema change--it returns true to indicate that.

Those 9 calls do not also check the return value, so they cannot detect schema changes.


(To find those calls, comment out the "throws SchemaChangeException" on RecordBatchLoader.load(...)
and follow the compilation errors.)



  was:
There are about 9 calls to RecordBatchLoader.load(...) that apparently try to detect schema
changes by catching SchemaChangeException.

However, RecordBatchLoader.load(...) never actually throws SchemaChangeException to indicate
a schema change--it returns true to indicate that.

Those 9 calls do not also check the return value, so they cannot detect schema changes.


(To find those calls, comment out the "throws SchemaChangeException" on RecordBatchLoader.load(...)
and follow the Java compilation errors.)




> RecordBatchLoader.load(...) calls catch SchemaChangeException that load(...) never throws
> -----------------------------------------------------------------------------------------
>
>                 Key: DRILL-2933
>                 URL: https://issues.apache.org/jira/browse/DRILL-2933
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Daniel Barclay (Drill)
>
> There are about 9 calls to RecordBatchLoader.load(...) that apparently try to detect
schema changes by catching SchemaChangeException.
> However, RecordBatchLoader.load(...) never actually throws SchemaChangeException to indicate
a schema change--it returns true to indicate that.
> Those 9 calls do not also check the return value, so they cannot detect schema changes.
> (To find those calls, comment out the "throws SchemaChangeException" on RecordBatchLoader.load(...)
and follow the compilation errors.)



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