/* Migration SQLite V6 vers V7 : traçabilité des extractions. */
CREATE TABLE IF NOT EXISTS extractions
(
    id TEXT PRIMARY KEY,
    evidence_id TEXT,
    source_kind TEXT NOT NULL,
    source_id TEXT NOT NULL,
    tool_id TEXT NOT NULL,
    created_at TEXT NOT NULL,
    FOREIGN KEY (evidence_id) REFERENCES preuves(id) ON DELETE CASCADE,
    CHECK (source_kind IN ('evidence', 'entity')),
    CHECK (length(trim(source_id)) > 0),
    CHECK (length(trim(tool_id)) > 0),
    CHECK (length(created_at) = 20)
);
CREATE INDEX IF NOT EXISTS idx_extractions_source
    ON extractions(source_kind, source_id);