40 lines
1.2 KiB
MySQL
40 lines
1.2 KiB
MySQL
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BEGIN TRANSACTION;
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CREATE TABLE IF NOT EXISTS boards
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( board_id serial primary key
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, name text NOT NULL
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, pathpart text NOT NULL -- if it's /a/ then the pathpart is a
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);
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CREATE TABLE IF NOT EXISTS thread
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( thread_id bigserial primary key
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, creation_time timestamp with time zone NOT NULL
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, board_id int NOT NULL
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, CONSTRAINT board_fk FOREIGN KEY (board_id) REFERENCES boards (board_id) ON DELETE CASCADE
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);
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CREATE TABLE IF NOT EXISTS posts
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( post_id bigserial primary key
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, creation_time timestamp with time zone NOT NULL
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, body text
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, body_search_index tsvector
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, thread_id bigint NOT NULL
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, CONSTRAINT thread_fk FOREIGN KEY (thread_id) REFERENCES thread (thread_id) ON DELETE CASCADE
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);
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CREATE INDEX post_body_search_idx ON posts USING GIN (body_search_index);
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CREATE OR REPLACE FUNCTION update_post_body_search_index() RETURNS trigger AS $$
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BEGIN
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NEW.body_search_index := to_tsvector('english', NEW.body);
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql;
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CREATE TRIGGER trigger_update_post_body_search_index
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BEFORE INSERT OR UPDATE
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ON posts
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FOR EACH ROW
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EXECUTE FUNCTION update_post_body_search_index();
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ROLLBACK;
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