sqlite3 issues

[Edgar Pettijohn <edgar%pettijohn-web.com@localhost>]

I'm trying to learn to use sqlite3 and I have encountered an oddity. I 
don't have another system to test on at the moment. So I'm not sure if 
its me, sqlite3, or netbsd. Either way. Here are the commands give:

laptop$ /usr/bin/sqlite3 test.db
SQLite version 3.26.0 2018-12-01 12:34:55
Enter ".help" for usage hints.
sqlite> CREATE TABLE os_groups (
   ...> os_group INTEGER PRIMARY KEY,
   ...> os_type TEXT NOT NULL
   ...> );
sqlite> INSERT INTO os_groups (os_type)
   ...> VALUES
   ...> ('BSD'),
   ...> ('LINUX'),
   ...> ('other');
sqlite> CREATE TABLE os (
   ...> os_id INTEGER PRIMARY KEY,
   ...> os_name TEXT NOT NULL,
   ...> os_group INTEGER,
   ...> FOREIGN KEY (os_group)
   ...> REFERENCES os_groups (os_type)
   ...> ON UPDATE SET NULL
   ...> ON DELETE SET NULL
   ...> );
sqlite> INSERT INTO os (os_name, os_group)
   ...> VALUES('NetBSD', 1);
sqlite> INSERT INTO os (os_name, os_group)
   ...> VALUES('Slackware', 2);
sqlite> INSERT INTO os (os_name, os_group)
   ...> VALUES('Winders', 3);
sqlite> DELETE FROM os_groups WHERE os_group = 3;
sqlite> SELECT * FROM os;
1|NetBSD|1
2|Slackware|2
3|Winders|3

I was expecting the `3|Winders|3' line to look something like `3|Winders|'

The os_group should have been set to NULL.

NetBSD laptop 9.0 NetBSD 9.0 (GENERIC) #0: Fri Feb 14 00:06:28 UTC 2020 
mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64


Thanks,


Edgar