Hello,

Perhaps I'm missing something obvious, but I somewhat was expecting withStmt' to return a SqlError, not a user error:

user error (Postgresql.withStmt': bad result status FatalError (("PGRES_FATAL_ERROR","ERROR: duplicate key value violates...

I guess this as to do with using fail which then gets turned into a UserError/IOError by with.

Would there be any way to bracket an insert just on SqlError, or do I have to bracket into the far more general IOError?

Thanks