Alexandre <Xlex0x835(at)rambler(dot)ru> writes:
> What I mean is: currently to get/put/delete/edit any data I have to
> compose an SQL query, which should be parsed, compiled, optimized and
> so on. While, in some tasks simple interface a-la [G|N]DBM should be
> more than enough, but it will be more preferable to store all data in
> one database, which support concurrent access, transactions, etc.
I seem to recall that someone has written an ISAM-style interface
library, which might be more or less what you are asking for. Check
the archives, and/or look at gborg and pgfoundry.
regards, tom lane