15 lines
633 B
MySQL
15 lines
633 B
MySQL
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CREATE TABLE IF NOT EXISTS contact_merge_history (
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id BIGSERIAL PRIMARY KEY,
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target_contact_id INTEGER NOT NULL REFERENCES contacts(id) ON DELETE RESTRICT,
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source_contact_id INTEGER NOT NULL,
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source_snapshot JSONB NOT NULL,
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moved_relations JSONB NOT NULL DEFAULT '{}'::jsonb,
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merged_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE INDEX IF NOT EXISTS idx_contact_merge_history_target
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ON contact_merge_history(target_contact_id, merged_at DESC);
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COMMENT ON TABLE contact_merge_history IS
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'Audit trail for destructive contact merges. Source contact snapshots and moved relation counts are retained.';
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