Merge pull request #13140 from hashicorp/b-rds-snapshot-restore-db-name

provider/aws: Don't set DBName on `aws_db_instance` from snapshot

builtin/providers/aws/resource_aws_db_instance.go

@@ -407,7 +407,14 @@ func resourceAwsDbInstanceCreate(d *schema.ResourceData, meta interface{}) error
 		}
 
 		if attr, ok := d.GetOk("name"); ok {
-			opts.DBName = aws.String(attr.(string))
+			// "Note: This parameter [DBName] doesn't apply to the MySQL, PostgreSQL, or MariaDB engines."
+			// https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_RestoreDBInstanceFromDBSnapshot.html
+			switch strings.ToLower(d.Get("engine").(string)) {
+			case "mysql", "postgres", "mariadb":
+				// skip
+			default:
+				opts.DBName = aws.String(attr.(string))
+			}
 		}
 
 		if attr, ok := d.GetOk("availability_zone"); ok {