[fpc-pascal] Unit/library for writing data structures to files

[Francisco Reyes]

I looked through the contributed units in the http://freepascal.org site and 
did not see anything that could take an array or some other data structure 
and write it to disk. Also the library would need to do the opposite, read 
from disk into a data structure.

I figure before I try and re-invent the wheel I would ask if there is any 
good libraries/unit(s) like that already. Perhaps something simmilar to what 
Python has on it's Picle library.

Is the Objects unit what I am looking for?
In this url 
http://coleweb.dc.fi.udc.es/docencia/edi/freepascal/doc/user/node10.html

I foud this description.

objects
This unit provides the base object for standard Turbo Pascal objects. It 
also implements File and Memory stream objects, as well as sorted and 
non-sorted collections, and string streams. 

>> File and Memory stream objects

The application I am trying to do is a database.
I want to try some concepts for doing Analytics/OLAP work and performance 
will be a concern so I figure FPC would be a good tool for the job.

>From reading this URL 
http://www.learn-programming.za.net/programming_pascal_learn11.html

I see one can write records to a file. Would that be a feasible approach?