FIX - dbinfo should add a field to list the null values if exist of a collection

[Bang Pham Huu]

For example, this systemtest collection test_rgb has null values and it should show as a new property in the output of dbinfo().

rasql -q 'select dbinfo(c) from test_rgb as c' --out string --user rasadmin --passwd rasadmin

Currently, one has to check the null values manually via another rasql query:

rasql -q 'SELECT a FROM RAS_SET_TYPES a' --out string --user rasadmin --passwd rasadmin | grep 'test_rgb_Set'
  Result element 301: CREATE TYPE test_rgb_Set AS SET (test_rgb_Array NULL VALUES {[119.000000],[208.000000],[248.000000]})