hyungi_document_server/migrations/134_extract_meta.sql

ALTER TABLE documents ADD COLUMN IF NOT EXISTS extract_meta JSONB DEFAULT '{}';
COMMENT ON COLUMN documents.extract_meta IS 'OCR 판정/실행 메타데이터: ocr_attempted, ocr_reason, ocr_skip_reason, ocr_chars, pymupdf_chars, ocr_terminal';