Pentaho Kettle - From JSON Table Output to Postgresql JSONB field

How do I get Pentaho Kettle send JSON data to a PostgreSQL JSONB field? Anytime I try to output JSON data to a Postgresql JSONB field type I get an error. Sending JSON data to PostgreSQL text fields works fine, but I want to maintain the JSON format in PostgreSQL.

Posted this question in the Kettle forum, but did not get a response. So I'm trying this forum.

Thanks for your input!

Edit: When I run the Pentaho Kettle transformation and the target field in Postgresql is of type JSONB, I get this error:

2015/10/29 15:39:32 - Table output 2.0 - Connected to database [test] (commit=1000)
2015/10/29 15:40:43 - Table output 2.0 - ERROR (version 5.4.0.1-130, build 1 from 2015-06-14_12-34-55 by buildguy) : Unexpected batch update error committing the database connection.
2015/10/29 15:40:43 - Table output 2.0 - ERROR (version 5.4.0.1-130, build 1 from 2015-06-14_12-34-55 by buildguy) : org.pentaho.di.core.exception.KettleDatabaseBatchException: 
2015/10/29 15:40:43 - Table output 2.0 - Error updating batch
2015/10/29 15:40:43 - Table output 2.0 - Batch entry 0 INSERT INTO test_raw_dataj (sensor_readings) VALUES ( '{"data":[{"readings":"[[1325404802000,2.8020381927490234],[1325404812000,2.8020381927490234],[1325404822000,2.817678451538086],[1325404832000,2.817678451538086],[1325404842000,2.8333663940429688],[1325404852000,2.8333663940429688]]","id":"59997f"}]}') was aborted.  Call getNextException to see the cause.
2015/10/29 15:40:43 - Table output 2.0 -    at org.postgresql.jdbc2.AbstractJdbc2Statement$BatchResultHandler.handleError(AbstractJdbc2Statement.java:2743)
2015/10/29 15:40:43 - Table output 2.0 -    at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1928)
2015/10/29 15:40:43 - Table output 2.0 -    at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:405)
2015/10/29 15:40:43 - Table output 2.0 -    at org.postgresql.jdbc2.AbstractJdbc2Statement.executeBatch(AbstractJdbc2Statement.java:2892)
2015/10/29 15:40:43 - Table output 2.0 -    at org.pentaho.di.core.database.Database.emptyAndCommit(Database.java:1362)
2015/10/29 15:40:43 - Table output 2.0 -    ... 3 more
2015/10/29 15:40:43 - Table output 2.0 - Finished processing (I=0, O=0, R=1, W=0, U=0, E=1)

However, running the same transformation and the target field in Postgresql is of type TEXT, everything works fine.

Solution

I tried to recreate the issue and I found the solution at last.
In your table output step

Go to Edit button in front of connection
Then select Options.
Give Parameter value as follows

Parameter stringtype and value unspecified

NB: In General tab you must select your Connection type as PostgreSQL and fill the necessary settings.