From 6acfae8ee7614746797e1fa91e1fd41c0240fdcd Mon Sep 17 00:00:00 2001
From: Dan Ribbens <dan.ribbens@gmail.com>
Date: Tue, 9 Jan 2024 10:21:45 -0500
Subject: [PATCH] fix(db-postgres): migrate down only runs latest batch size

---
 packages/db-postgres/src/migrateDown.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/db-postgres/src/migrateDown.ts b/packages/db-postgres/src/migrateDown.ts
index 34069aa9a5..12fcfc145d 100644
--- a/packages/db-postgres/src/migrateDown.ts
+++ b/packages/db-postgres/src/migrateDown.ts
@@ -28,7 +28,9 @@ export async function migrateDown(this: PostgresAdapter): Promise<void> {
     msg: `Rolling back batch ${latestBatch} consisting of ${existingMigrations.length} migration(s).`,
   })
 
-  for (const migration of existingMigrations) {
+  const latestBatchMigrations = existingMigrations.filter(({ batch }) => batch === latestBatch)
+
+  for (const migration of latestBatchMigrations) {
     const migrationFile = migrationFiles.find((m) => m.name === migration.name)
     if (!migrationFile) {
       throw new Error(`Migration ${migration.name} not found locally.`)