()
| 45 | const WRITE_CHUNK_SIZE = 5000 |
| 46 | |
| 47 | export async function runRepair(): Promise<void> { |
| 48 | const dryRun = process.argv.includes('--dry-run') |
| 49 | const connectionString = process.env.DATABASE_URL ?? process.env.POSTGRES_URL |
| 50 | if (!connectionString) { |
| 51 | console.error('Missing DATABASE_URL or POSTGRES_URL') |
| 52 | process.exit(1) |
| 53 | } |
| 54 | |
| 55 | const client = postgres(connectionString, { |
| 56 | prepare: false, |
| 57 | idle_timeout: 20, |
| 58 | connect_timeout: 30, |
| 59 | max: 5, |
| 60 | onnotice: () => {}, |
| 61 | }) |
| 62 | const db = drizzle(client) |
| 63 | |
| 64 | const stats = { tables: 0, tablesKeyed: 0, rowsKeyed: 0, failed: 0 } |
| 65 | |
| 66 | try { |
| 67 | // Tables with a bytewise (`COLLATE "C"`) inversion or duplicate among their |
| 68 | // non-null keys. Walking rows in their authoritative `position, id` order (the |
| 69 | // order the re-key writes), a healthy table has strictly INCREASING keys; flag |
| 70 | // any table where a row's key is `>=` the next row's. Ordering by `position` |
| 71 | // (not by `order_key`) is what makes this detect actual mis-assignment — e.g. |
| 72 | // pos 0 holding "a0" while pos 1 holds "Zz" (bytewise "Zz" < "a0") — and not |
| 73 | // just adjacent duplicates. The explicit `COLLATE "C"` keeps the comparison |
| 74 | // bytewise whether or not migration 0228 has been applied yet. |
| 75 | const pending = await db.execute<{ table_id: string }>(sql` |
| 76 | SELECT DISTINCT table_id FROM ( |
| 77 | SELECT |
| 78 | table_id, |
| 79 | order_key, |
| 80 | LEAD(order_key) OVER ( |
| 81 | PARTITION BY table_id ORDER BY position, id |
| 82 | ) AS next_key |
| 83 | FROM user_table_rows |
| 84 | WHERE order_key IS NOT NULL |
| 85 | ) t |
| 86 | WHERE next_key IS NOT NULL AND order_key COLLATE "C" >= next_key COLLATE "C" |
| 87 | `) |
| 88 | |
| 89 | console.log( |
| 90 | `Repair starting — ${pending.length} table(s) with mis-ordered keys${dryRun ? ' [DRY RUN]' : ''}` |
| 91 | ) |
| 92 | |
| 93 | for (const { table_id: tableId } of pending) { |
| 94 | stats.tables += 1 |
| 95 | try { |
| 96 | if (dryRun) { |
| 97 | // Sizing only — count outside any transaction/lock so we never serialize |
| 98 | // live inserts on the table (taking the advisory lock just to count would |
| 99 | // make the dry run the opposite of safe). |
| 100 | const [row] = await db |
| 101 | .select({ rowCount: sql<number>`count(*)`.mapWith(Number) }) |
| 102 | .from(userTableRows) |
| 103 | .where(eq(userTableRows.tableId, tableId)) |
| 104 | stats.tablesKeyed += 1 |
no test coverage detected