This program fetches matching database schemas from one or more AWS MySQL clusters and outputs any differences found.
Usage example:
schema-similarity-check -pat '%mydb%' prod/service-shard{1..5}
Here -pat sets the SQL pattern used to match MySQL database names via the LIKE operator,
and prod/service-shard1 to prod/service-shard5 are AWS Secrets Manager secrets containing RDS cluster connection details and credentials.