Hi David,

> I spotted where the problem comes from: it is when a text value is empty. I have
> produced a small but complete example [attached]: can you reproduce it ?

Yes, thanks for the test case, I can now reproduce it and hopefully the
attached patches work for you also.

The first one fixes the ignorance of 'proc' of the 'sqlite-map'
procedure.  It took me a while to figure this one out ;)

The second patch extends 'tests/basic.test' with some statements that
make the problem discovered by you show up.

The third patch fixes the problem for me.  Andy, is this the 'right way'
to test for null pointers?  I could not find a cleaner solution in my
limited search...

The fourth patch fixes a problem I discovered while playing with
sqlite-bind.  Really this should generate more testcases.

Andy, I have now cloned your repo at gitorious[1] for you to pull if
that's easier.  I am perfectly happy to rework patches if anything needs
to be done for that.

Thanks
  Detlev

[1] https://gitorious.org/~dzu/guile-sqlite3/guile-sqlite3-dzu

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