ToolJet/docs/versioned_docs/version-3.16.0-LTS/setup/postgresql-13-16/aws/db-upgrade.md

id	title
db-upgrade	Database Upgrade Process

Follow these steps to upgrade the database:

Step 1: Prepare for Upgrade

Create a snapshot of your PostgreSQL 13 database before upgrading:

Using AWS Console

1. Navigate to RDS Console → Databases
2. Select your PostgreSQL 13 instance
3. Click Actions → Take snapshot
4. Enter snapshot name: pre-upgrade-snapshot-YYYYMMDD
5. Click Take snapshot

Using AWS CLI

aws rds create-db-snapshot \
  --db-instance-identifier your-db-instance \
  --db-snapshot-identifier pre-upgrade-snapshot-$(date +%Y%m%d)

Step 2: Upgrade RDS PostgreSQL to 16.9

Using AWS Console (Recommended)

1. Navigate to RDS Console:
   • Go to AWS Console → RDS → Databases
2. Select Your Database Instance:
   • Click on your PostgreSQL 13 database instance
3. Modify Database Engine:
   • Click the Modify button
   • In the Engine options section, find Engine version
   • Select 16.9 from the dropdown menu
4. Review Modification Settings:
   • Scroll down to Scheduling of modifications
   • Choose Apply immediately for immediate upgrade, or
   • Choose Apply during the next scheduled maintenance window
5. Apply Changes:
   • Click Continue
   • Review the summary of modifications
   • Click Modify DB instance
6. Monitor Upgrade Progress:
   • The instance status will show "modifying"
   • Upgrade typically takes 10-30 minutes depending on database size
   • Wait for status to return to "available"

Using AWS CLI

# Upgrade your RDS instance to PostgreSQL 16.9
aws rds modify-db-instance \
  --db-instance-identifier your-db-instance \
  --engine-version 16.9 \
  --apply-immediately

Step 3: Download Required SSL Certificate

# Download the global CA bundle from AWS
wget https://truststore.pki.rds.amazonaws.com/global/global-bundle.pem

# OR using curl
curl -O https://truststore.pki.rds.amazonaws.com/global/global-bundle.pem

# Verify the certificate file
head -5 global-bundle.pem
# Should show: -----BEGIN CERTIFICATE-----