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From "Michael Gokhman (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-4307) new MongoDB BSON record reader breaks _id SELECT-ion
Date Sun, 24 Jan 2016 09:58:39 GMT
Michael Gokhman created DRILL-4307:
--------------------------------------

             Summary: new MongoDB BSON record reader breaks _id SELECT-ion
                 Key: DRILL-4307
                 URL: https://issues.apache.org/jira/browse/DRILL-4307
             Project: Apache Drill
          Issue Type: Bug
          Components: Storage - MongoDB
    Affects Versions: 1.5.0
            Reporter: Michael Gokhman


in Drill 1.4, SELECT-ing an _id results in:
{code}
{"$oid":"567ff2697f2310849fea0666"} 
{code}
as expected.
however, when working with the master branch, SELECT-ing an _id results in a something that
looks like a pointer:
{code}
[B@3149a…]
{code}

This is caused by DRILL-3478, and can be avoided by disabling the new BSON record reder:
{code:sql}
ALTER SESSION SET store.mongo.bson.record.reader = false
{code}



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