Re: [Haskell-cafe] HDBC, postgresql, bytestrings and embedded NULLs

On 01/17/2011 10:07 AM, Michael Snoyman wrote:

On Mon, Jan 17, 2011 at 4:49 PM, Leon Smith wrote:

...

On Sat, Jan 8, 2011 at 11:55 AM, Michael Snoyman wrote:

...

In general I think it would be a good thing to have solid, low-level bindings to PostgreSQL.

Well, there is PostgreSQL and libpq on hackage:

http://hackage.haskell.org/package/libpq http://hackage.haskell.org/package/PostgreSQL

The PostgreSQL looks like it's in need of maintenance, and hasn't been updated in a few years. libpq is new, and looks promising. I haven't really used either one, so I can't really say too much about either.

Best, Leon

I've tried PostgreSQL before, and if I remember correctly I couldn't even build it. libpq looks interesting, I'd like to try it out. Unfortunately it depends on unix, which would be a problem for Windows users. If it looks like a good fit for persistent-postgresql, maybe I can convince the author to replace the unix dep with something else (unix-compat might be sufficient).

I would also like to know what things people find are deficient in HDBC or HDBC-postgresql. If the API isn't good enough for some uses, that could be fixed. I would like to avoid a proliferation of database libraries as that is unnecessary duplication of work. HDBC does have an easy way for DB backends to implement more functionality than the HDBC API supports, or an alternative could also be to make HDBC-postgresql a thin binding over libpq or some such. -- John

Thanks for the pointer, Michael

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