ImageApi/migrations/2026-05-09-000000_personas_and_persona_scoped_facts/down.sql

-- Drop the persona-scoping column on entity_facts via the table-rebuild
-- dance for SQLite-version portability (matches the pattern in
-- 2026-04-20-000000_add_backend_to_insights/down.sql).
DROP INDEX IF EXISTS idx_entity_facts_persona;

CREATE TABLE entity_facts_backup AS
    SELECT id, subject_entity_id, predicate, object_entity_id, object_value,
           source_photo, source_insight_id, confidence, status, created_at
    FROM entity_facts;

DROP TABLE entity_facts;

CREATE TABLE entity_facts (
    id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
    subject_entity_id INTEGER NOT NULL,
    predicate TEXT NOT NULL,
    object_entity_id INTEGER,
    object_value TEXT,
    source_photo TEXT,
    source_insight_id INTEGER,
    confidence REAL NOT NULL DEFAULT 0.6,
    status TEXT NOT NULL DEFAULT 'active',
    created_at BIGINT NOT NULL,
    CONSTRAINT fk_ef_subject FOREIGN KEY (subject_entity_id) REFERENCES entities(id) ON DELETE CASCADE,
    CONSTRAINT fk_ef_object  FOREIGN KEY (object_entity_id)  REFERENCES entities(id) ON DELETE SET NULL,
    CONSTRAINT fk_ef_insight FOREIGN KEY (source_insight_id) REFERENCES photo_insights(id) ON DELETE SET NULL,
    CHECK (object_entity_id IS NOT NULL OR object_value IS NOT NULL)
);

INSERT INTO entity_facts
    SELECT id, subject_entity_id, predicate, object_entity_id, object_value,
           source_photo, source_insight_id, confidence, status, created_at
    FROM entity_facts_backup;

DROP TABLE entity_facts_backup;

CREATE INDEX idx_entity_facts_subject ON entity_facts(subject_entity_id);
CREATE INDEX idx_entity_facts_predicate ON entity_facts(predicate);
CREATE INDEX idx_entity_facts_status ON entity_facts(status);
CREATE INDEX idx_entity_facts_source_photo ON entity_facts(source_photo);

DROP INDEX IF EXISTS idx_personas_user;
DROP TABLE IF EXISTS personas;