28 lines
866 B
MySQL
28 lines
866 B
MySQL
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CREATE TABLE paste_revisions (
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paste_revision_id serial PRIMARY KEY,
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created_at timestamp with time zone NOT NULL DEFAULT now(),
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paste_id int NOT NULL REFERENCES pastes
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);
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CREATE INDEX ON paste_revisions(paste_id, created_at DESC);
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CREATE TABLE paste_contents (
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paste_content_id serial PRIMARY KEY,
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paste_revision_id int NOT NULL REFERENCES paste_revisions,
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language_id int NOT NULL REFERENCES languages,
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paste text NOT NULL
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);
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CREATE INDEX ON paste_contents(paste_revision_id);
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INSERT INTO paste_revisions (created_at, paste_id)
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SELECT created_at, paste_id FROM pastes;
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INSERT INTO paste_contents (paste_revision_id, language_id, paste)
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SELECT paste_revision_id, language_id, paste FROM pastes NATURAL JOIN paste_revisions;
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ALTER TABLE pastes
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DROP COLUMN created_at,
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DROP COLUMN language_id,
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DROP COLUMN paste;
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