/usr/share/kamailio/db_berkeley/kamailio/location_attrs is in kamailio-berkeley-modules 4.2.0-2+deb8u3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | METADATA_COLUMNS
id(int) ruid(str) username(str) domain(str) aname(str) atype(int) avalue(str) last_modified(datetime)
METADATA_KEY
1 2 3
METADATA_READONLY
0
METADATA_LOGFLAGS
0
METADATA_DEFAULTS
NIL|''|''|NULL|''|0|''|'1900-01-01 00:00:01'
|