unable to configure postgreSQL JDBC driver using apache drill 1.2 - postgresql

Question

With apache drill 1.2, we can query over RDBMS data https://drill.apache.org/blog/2015/10/16/drill-1.2-released/
I downloaded the JDBC PostgreSQL driver here:
https://jdbc.postgresql.org/download.html
I took the JDBC4 I didn't know which to take.
I put the jar file in this folder 'apache-drill-1.2.0\jars\3rdparty'
And now, I'm trying to add a plugin for postgres. I am doing it using the web console (http://127.0.0.1:8047). I created a plugin with name pgplugin and added following configurations:
{
"type": "jdbc",
"driver": "org.postgresql.Driver",
"url": "jdbc:postgresql://IP:port/myschema",
"username": "root",
"password": "root",
"enabled": true
}
It is showing error:
error(Unable to create / update storage)
Even with just the following it's not working (same error):
{
"type": "jdbc"
}
I know that I should add the jar (jdbc postgres driver) to apache drill classpath somewhere in the configuration files but I can't figure it out...
I tried to add this: drill.exec.sys.store.provider.local.path = "/mypath"
to the drill-override.conf -> result is:
drill.exec: {
cluster-id: "drillbits1",
zk.connect: "localhost:2181",
drill.exec.sys.store.provider.local.path = "/mypath"
}
But it's not working... any ideas ?
Thanks a lot !

Answer 1

I experienced this same issue. The cause of my problem was using the "JDBC42 Postgresql Driver, Version 9.4-1205" JDBC driver. I fixed this issue by using the "JDBC4 Postgresql Driver, Version 9.4-1205" driver.
For reference, the Postgres JDBC downloads page: https://jdbc.postgresql.org/download.html