I'm looking for an alternative to HSQL for database connectivity -- the
lack of prepared statements in HSQL is particularly worrisome.
I installed HDBC, but when I tried running a simple program that used
it, I get the error message
ghc-6.6:
/usr/local/lib/HDBC-postgresql-1.0.1.0/ghc-6.6/HSHDBC-postgresql-1.0.1.0.o:
unknown symbol `PQserverVersion'
Looking more closely at the README.txt file there, it seems that the
PostgreSQL driver is expecting 8.1, and I'm using 7.4.7.
I installed the ODBC driver, and I know that in theory one can connect
to my PostgreSQL server with ODBC, but as far as I can tell from the
documentation, I would have to configure a separate DSN for every
database instance that I would want to connect to, which makes it kind
of useless for a utility that any user could pass database names to on
the command line.
The takusen package looks interesting, but when I checked it out and
tried to build it (with "ghc --make -o setup Setup.hs"), I got the error
message
Setup.hs:6:7:
Could not find module `Distribution.Compat.FilePath':
it is hidden (in package Cabal-1.1.6)
How do I work around these? Is there another library worth looking into?
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