Paul Rogers created DRILL-7403:
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             Summary: Validate batch checks, vector integretity, in unit tests
                 Key: DRILL-7403
                 URL: https://issues.apache.org/jira/browse/DRILL-7403
             Project: Apache Drill
          Issue Type: Improvement
            Reporter: Paul Rogers
            Assignee: Paul Rogers


Drill provides a {{BatchValidator}} that checks vectors. It is disabled by 
default. This enhancement adds more checks, including checks for row counts (of 
which there are surprisingly many.)

Since most operators will fail if the check is enabled, this enhancement also 
adds a table to keep track of which operators pass the checks (and for which 
checks should be enabled) and those that still need work. This allows the 
checks to exist in the code, and to be enabled incrementally as we fix the 
various problems.



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