[WARN ][logstash.inputs.jdbc ] Exception when executing JDBC query {:exception=>#<Sequel::DatabaseError: Java::OrgLogstash::MissingConverterException: Missing Converter handling for full class name=org.postgresql.util.PGobject, simple name=PGobject>}

I want fetch data from postgresql DB that contain jsonb format input to logstash and output to elasticsearch

but I get the warning message and didn't proceed next step

See here.