B Anil Kumar created DRILL-347:
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             Summary: Dispay proper console error message for sqlline queries
                 Key: DRILL-347
                 URL: https://issues.apache.org/jira/browse/DRILL-347
             Project: Apache Drill
          Issue Type: Improvement
            Reporter: B Anil Kumar
            Priority: Minor


When JAVA_HOME is not set, sqlline quries are returning  "no current 
connection" on console. Which is actually confusing the users.  

{noformat}
incubator-drill$ ./sqlline -u jdbc:drill:schema=parquet-local -n admin -p admin
Loaded singnal handler: SunSignalHandler
/home/ubuntu/.sqlline/sqlline.properties (No such file or directory)
issuing: !connect jdbc:drill:schema=parquet-local admin admin 
scan complete in 41ms
scan complete in 1094ms
No known driver to handle "jdbc:drill:schema=parquet-local"
sqlline version ??? by Marc Prud'hommeaux
sqlline> select * from "sample-data/region.parquet";
No current connection
sqlline> !quit
{noformat}



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