修正

backend/app/modules/bank_statements/migration.py

@@ -0,0 +1,41 @@
+"""銀行明細テーブルのマイグレーション"""
+import os
+from psycopg import connect
+
+
+def create_bank_statement_table():
+    conn = connect(
+        host=os.getenv("DB_HOST"),
+        port=int(os.getenv("DB_PORT", 5432)),
+        dbname=os.getenv("DB_NAME"),
+        user=os.getenv("DB_USER"),
+        password=os.getenv("DB_PASSWORD"),
+    )
+    with conn.cursor() as cur:
+        cur.execute("""
+            CREATE TABLE IF NOT EXISTS bank_statement_rows (
+                id              SERIAL PRIMARY KEY,
+                tx_date         DATE        NOT NULL,
+                description     TEXT        NOT NULL DEFAULT '',
+                debit           BIGINT      NOT NULL DEFAULT 0,
+                credit          BIGINT      NOT NULL DEFAULT 0,
+                balance         BIGINT,
+                memo            TEXT        NOT NULL DEFAULT '',
+                bank_name       TEXT        NOT NULL DEFAULT '',
+                import_batch_id TEXT        NOT NULL,
+                row_hash        TEXT        NOT NULL,
+                imported_at     TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+                CONSTRAINT uq_bank_stmt_hash UNIQUE (row_hash)
+            )
+        """)
+        cur.execute("""
+            CREATE INDEX IF NOT EXISTS idx_bank_stmt_date
+                ON bank_statement_rows (tx_date)
+        """)
+        cur.execute("""
+            CREATE INDEX IF NOT EXISTS idx_bank_stmt_batch
+                ON bank_statement_rows (import_batch_id)
+        """)
+        conn.commit()
+        print("✓ bank_statement_rows テーブル確認完了")
+    conn.close()