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BEGIN TRANSACTION;
-- For PostgreSQL 9.1 upward, we should consider using enum types
-- instead of VARCHARs with CHECK constraints:
--
-- CREATE TYPE user_status AS
-- ENUM ('pending', 'approved', 'trusted', 'deferred', 'disabled', 'admin');
--
-- CREATE TYPE comment_status AS
-- ENUM ('pending', 'approved', 'trusted', 'deferred', 'spam', 'rejected');
--
-- CREATE TYPE text_format AS
-- ENUM ('html', 'text');
CREATE TABLE users(
id SERIAL NOT NULL,
name VARCHAR,
status VARCHAR NOT NULL,
PRIMARY KEY (id),
CHECK (status IN ('pending', 'approved', 'trusted', 'deferred', 'disabled',
'admin'))
);
CREATE TABLE passwords(
"user" INTEGER NOT NULL,
password VARCHAR NOT NULL,
FOREIGN KEY ("user") REFERENCES users
);
CREATE TABLE openids(
"user" INTEGER NOT NULL,
openid VARCHAR NOT NULL,
FOREIGN KEY ("user") REFERENCES users
);
CREATE TABLE login_certificates(
"user" INTEGER NOT NULL,
certificate BYTEA NOT NULL,
FOREIGN KEY ("user") REFERENCES users
);
CREATE TABLE articles(
id SERIAL NOT NULL,
PRIMARY KEY (id)
);
CREATE TABLE article_aliases(
alias VARCHAR NOT NULL,
article INTEGER NOT NULL,
PRIMARY KEY (alias),
FOREIGN KEY (article) REFERENCES articles
);
CREATE TABLE comments(
id SERIAL NOT NULL,
article INTEGER NOT NULL,
PRIMARY KEY (id),
FOREIGN KEY (article) REFERENCES articles
);
CREATE TABLE article_revisions(
id SERIAL NOT NULL,
article INTEGER NOT NULL,
date TIMESTAMP DEFAULT now(),
title VARCHAR NOT NULL,
content VARCHAR NOT NULL,
author INTEGER,
format varchar NOT NULL,
PRIMARY KEY (id),
FOREIGN KEY (article) REFERENCES articles,
FOREIGN KEY (author) REFERENCES users,
CHECK (format IN ('html'))
);
CREATE TABLE article_revision_characteristics(
revision INTEGER NOT NULL,
characteristic VARCHAR NOT NULL,
value VARCHAR,
FOREIGN KEY (revision) REFERENCES article_revisions
);
CREATE TABLE article_revision_parenthood(
parent_id INTEGER NOT NULL,
child_id INTEGER NOT NULL,
FOREIGN KEY (parent_id) REFERENCES article_revisions,
FOREIGN KEY (child_id) REFERENCES article_revisions
);
CREATE TABLE comment_revisions(
id SERIAL NOT NULL,
comment INTEGER NOT NULL,
date TIMESTAMP DEFAULT now(),
content VARCHAR NOT NULL,
author INTEGER,
format VARCHAR NOT NULL,
status VARCHAR NOT NULL,
article_revision INTEGER,
PRIMARY KEY (id),
FOREIGN KEY (comment) REFERENCES comments,
FOREIGN KEY (author) REFERENCES users,
CHECK (status IN ('pending', 'approved', 'trusted', 'deferred', 'spam',
'rejected')),
CHECK (format IN ('text'))
);
CREATE TABLE user_permissions(
"user" INTEGER NOT NULL,
permission VARCHAR NOT NULL,
status BOOLEAN,
PRIMARY KEY ("user", permission),
FOREIGN KEY ("user") REFERENCES users
);
CREATE TABLE user_settings(
"user" INTEGER NOT NULL,
setting VARCHAR NOT NULL,
value VARCHAR,
PRIMARY KEY ("user", setting),
FOREIGN KEY ("user") REFERENCES users
);
COMMIT;
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