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Posted to dev@drill.apache.org by "Michael Gokhman (JIRA)" <ji...@apache.org> on 2016/01/24 10:58:39 UTC

[jira] [Created] (DRILL-4307) new MongoDB BSON record reader breaks _id SELECT-ion

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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