database connection fails

[Karen Kuhn]

Hi all,

I tried to connect to a test database via

conn = pq_connect(setdbopts("host", "localhost","port", "5432","dbname", 
"testdb", "user", "superx", "password", ""))

and get the error:

error: octave_pq_get_postgres_oid: could not convert given type tostring
error: could not read types
error: __pq_connect__ failed
error: called from:
error:   /usr/share/octave/packages/database-2.4.2/pq_connect.m atline 
112, column 8

Has anyone an idea where the problem might be and how I can get it work?

I'm working on a Debian 8.6 machine with octave 3.8.2 and postgresql 
9.4.9. I installed the packages struct 1.0.14 and database 2.4.2 without 
any problem report via:

pkg install -global -verbose struct
pkg install -global -verbose database


Thanks in advance
Karen