Simple Rust CLI for row diff between different databases.

• A CLI that does not depend on an Oracle thick client or a SQLAlchemy version mix
• Diff data across Redshift/Postgres, Oracle, and MySQL
• Split data by one numeric primary key range, compare row hashes in each segment, and narrow down only the changed ranges

Current work is focused on:

• Using oracle-thin (pure Rust) as the default Oracle path
• Keeping the diff core separate from database drivers
• Building checksum SQL for each dialect with standard range filters (>=, <, ORDER BY)

• Hash range split supports only one numeric primary key
• The joindiff algorithm is not implemented yet
• You can choose compare columns with --columns and --update-column

cargo run -- \
  --source "postgres://postgres:password@localhost:5432/testdb" users \
  --target "mysql://root:password@localhost:3306/testdb" users \
  -k id \
  -c name

• Quick regression check: cargo test
• Manual e2e check: tests/cli_e2e.rs + docs/local_testing.md