I tried to throw some invalid SQL to PostgreSQL and found its reaction confusing:
$ psql test psql (8.4beta2) Type "help" for help. test=# CREATE TABLE t1 ( test(# id serial NOT NULL, test(# name text NOT NULL, test(# PRIMARY KEY (id) test(# ); CREATE TABLE test=# CREATE TABLE t2 ( test(# id int NOT NULL REFERENCES t1, test(# language char(3) NULL, test(# txt text NOT NULL, test(# PRIMARY KEY (id, language) test(# ); CREATE TABLE Here's my first gripe: PostgreSQL accepts this silently instead of complaining. test=# INSERT INTO t1 (id, name) VALUES (1, 'text 1'); INSERT 0 1 test=# INSERT INTO t2 (id, language, txt) VALUES (2, NULL, 'text 1 no language'); ERROR: null value in column "language" violates not-null constraint And here's my second gripe: although PostgreSQL correctly rejects the INSERT it just has ignored my NULL specification. -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
