I’d like to access an existing postgres database, which is on my local (mac) machine, from haskell.
I can see quite a few postgres packages on hackage. Which is likely to be the easiest for me to use?
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I’d like to access an existing postgres database, which is on my local (mac) machine, from haskell.
I can see quite a few postgres packages on hackage. Which is likely to be the easiest for me to use?
postgresql-simple, a binding to libpq, was just announced, and seems to have a nice feature set. I haven’t used it myself (or indeed PostgreSQL from Haskell at all), but it seems to have community support, so I’d recommend it if you don’t want to use a particular library on top (like HDBC or persistent).
The alternatives appear to be libpq (another binding to libpq), which postgre-simple is based on, and pgsql-simple (a direct implementation of the wire protocol in Haskell), which, going by the post, doesn’t seem ready for prime-time yet, and is not on Hackage.
There is also a PostgreSQL driver for HDBC; the PostgreSQL backend for the persistent library (as used in Yesod) is based on it.