Things yet to be completed:

1. Try to implement dbWrite (currently using temp files) using network
   connections. 

2. 'Scale' is not calculated in dbGetInfo(result_set)
   Try to write an SQL query to get the value or hardcode
   the appropriate details in the code.For more details
   refer to : "RS_PostgreSQL_createDataMappings".

3. Check whether it works in windows or not & make corresponding changes. 

4. Check whether all the data mappings are working perfectly fine.
   [Partially Done]

5. Add commands for prepared statements.

6. Check the working of DBI extension "dbApply".

7. Try to implement multiple resultsets per connection if possible.
