This code demonstrates how to use Conduit together with Persistent to stream data in constant memory in Haskell. Have a look at the accompanying weblog post here.
Make sure you have the following packages installed in your Haskell distribution:
- persistent-1.3.0.2
- persistent-template-1.3.1
- persistent-sqlite-1.3.0.1
- conduit-1.0.12
From the command line, run:
$ makeTo compare the memory usage between selectList and selectSource programs, run:
$ ./selectList +RTS -s
$ ./selectSource +RTS -sFinally, when you are done, and want to clean up, run:
$ make cleanLicense information can be found in LICENSE.