26 lines
1.1 KiB
SQL
26 lines
1.1 KiB
SQL
ALTER TABLE observations
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ADD COLUMN firmware_version VARCHAR(255) NULL;
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CREATE TABLE IF NOT EXISTS timeline_events (
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id BIGINT AUTO_INCREMENT PRIMARY KEY,
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subject_type VARCHAR(32) NOT NULL,
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subject_id BIGINT NOT NULL,
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event_type VARCHAR(64) NOT NULL,
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event_time TIMESTAMP NOT NULL,
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asset_id BIGINT NULL,
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component_id BIGINT NULL,
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firmware_version VARCHAR(255) NULL,
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created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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CONSTRAINT fk_timeline_events_asset
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FOREIGN KEY (asset_id) REFERENCES assets(id)
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ON DELETE SET NULL ON UPDATE CASCADE,
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CONSTRAINT fk_timeline_events_component
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FOREIGN KEY (component_id) REFERENCES components(id)
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ON DELETE SET NULL ON UPDATE CASCADE
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);
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CREATE INDEX idx_timeline_events_subject_time ON timeline_events(subject_type, subject_id, event_time, id);
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CREATE INDEX idx_timeline_events_asset_time ON timeline_events(asset_id, event_time, id);
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CREATE INDEX idx_timeline_events_component_time ON timeline_events(component_id, event_time, id);
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CREATE INDEX idx_observations_component_time ON observations(component_id, observed_at, id);
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