hyungi_document_server/migrations/168_study_sessions_idx_review.sql at 1842f27d89e026169a140d30de428aabca45f1d7 - hyungi_document_server - Hyun-git

hyungi/hyungi_document_server

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Hyungi Ahn 2df7b24ac9 fix(study): split migration 164 into 10 single-statement files (asyncpg)

asyncpg prepared statement 는 single-command 만 허용. 원래 한 파일이던 study_sessions
스키마(CREATE TABLE x2 + CREATE INDEX x8)를 143~146 분할 패턴 따라 10개로 분리.

  164: CREATE TABLE study_sessions
  165~169: study_sessions 인덱스 5개 (partial)
  170: CREATE TABLE study_session_assets
  171~173: study_session_assets 인덱스 3개

문제: cannot insert multiple commands into a prepared statement
원인: _run_migrations 가 conn.exec_driver_sql 로 단일 prepared statement 실행

2026-04-27 08:18:40 +09:00

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 -- 168_study_sessions_idx_review.sql (5/10)
 -- SRS 복습 큐 (Phase 4) — review_state 가 있는 행만
 CREATE INDEX IF NOT EXISTS idx_study_sessions_review
     ON study_sessions (user_id, review_state, next_review_at)
     WHERE review_state IS NOT NULL;