27 lines
1.2 KiB
MySQL
27 lines
1.2 KiB
MySQL
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-- T0509: Create Playlist Version History
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-- Create table playlist_versions for tracking playlist versions
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-- Table playlist_versions
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CREATE TABLE IF NOT EXISTS playlist_versions (
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id BIGSERIAL PRIMARY KEY,
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playlist_id BIGINT NOT NULL REFERENCES playlists(id) ON DELETE CASCADE,
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user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE SET NULL,
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version INTEGER NOT NULL,
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action VARCHAR(50) NOT NULL,
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title VARCHAR(200),
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description TEXT,
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is_public BOOLEAN DEFAULT TRUE,
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cover_url VARCHAR(500),
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tracks_snapshot TEXT,
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created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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-- Indexes for performance
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CREATE INDEX IF NOT EXISTS idx_playlist_versions_playlist_id ON playlist_versions(playlist_id);
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CREATE INDEX IF NOT EXISTS idx_playlist_versions_user_id ON playlist_versions(user_id);
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CREATE INDEX IF NOT EXISTS idx_playlist_versions_action ON playlist_versions(action);
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CREATE INDEX IF NOT EXISTS idx_playlist_versions_created_at ON playlist_versions(created_at DESC);
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CREATE INDEX IF NOT EXISTS idx_playlist_versions_playlist_created ON playlist_versions(playlist_id, created_at DESC);
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CREATE INDEX IF NOT EXISTS idx_playlist_versions_playlist_version ON playlist_versions(playlist_id, version);
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