CREATE SEQUENCE plugins_pk_seq; CREATE TABLE plugins (plugin_id integer DEFAULT nextval('plugins_pk_seq'::text) NOT NULL, plugin_name varchar(32) UNIQUE NOT NULL, plugin_desc text, CONSTRAINT plugins_pkey PRIMARY KEY (plugin_id)); CREATE SEQUENCE group_plugin_pk_seq; CREATE TABLE group_plugin (group_plugin_id integer DEFAULT nextval('group_plugin_pk_seq'::text) NOT NULL, group_id integer, plugin_id integer, CONSTRAINT group_plugin_pkey PRIMARY KEY (group_plugin_id), CONSTRAINT group_plugin_group_id_fk FOREIGN KEY (group_id) REFERENCES groups(group_id) MATCH FULL, CONSTRAINT group_plugin_plugin_id_fk FOREIGN KEY (plugin_id) REFERENCES plugins(plugin_id) MATCH FULL); CREATE SEQUENCE user_plugin_pk_seq; CREATE TABLE user_plugin (user_plugin_id integer DEFAULT nextval('user_plugin_pk_seq'::text) NOT NULL, user_id integer, plugin_id integer, CONSTRAINT user_plugin_pkey PRIMARY KEY (user_plugin_id), CONSTRAINT user_plugin_user_id_fk FOREIGN KEY (user_id) REFERENCES users(user_id) MATCH FULL, CONSTRAINT user_plugin_plugin_id_fk FOREIGN KEY (plugin_id) REFERENCES plugins(plugin_id) MATCH FULL);