Establishes a connection to a postgresql server according to SETTINGS and returns an 'octave_pq_connection' object CONNECTION which can be passed to other functions of the package.

Closes connection CONNECTION to a postgresql server.

Updates information on existing postgresql types for CONNECTION.

Retrieves connection information for postgresql connection CONNECTION, specified by the string LABEL, and returns the value of this information in VAL.

Sends the string COMMAND, which must contain a single SQL command, over the connection CONNECTION.

Imports the file in PATH on the client side as a large object into the database associated with CONNECTION and returns the Oid of the new large object.

Exports the large object of Oid OID in the database associated with CONNECTION to the file PATH on the client side.

Removes the large object of Oid OID from the database associated with CONNECTION.

Exports the large object of Oid OID in the database associated with CONNECTION to a temporary file and starts the program VIEWER in the background with the name of the temporary file as argument.

Show database package documentation.

Save input values in uint8 arrays in Octaves binary save format.

Restore variable values from uint8 arrays generated with 'var2bytea'.

Create settings structure for database functions.

Return a specific setting from a structure created by 'setdbopts'.