v1.1.1

update Watermill to v1.0.2

Introduce PostgreSQL support

Summary:

• github.com/lib/pq used in tests as the DB driver
• Tested with PostgreSQL 11.5
• Renamed DefaultSchema to DefaultMySQLSchema. The old name can still be used (it's a type alias), but is now deprecated.
• Changed NextOffsetQuery to not use MAX, but COALESCE with subquery instead. FOR UPDATE doesn't work with aggregate queries in Postgres.
• A few cosmetic changes.

v1.0.0

• Update Watermill to v1.0.0.
• Made release stable

v0.1.1

Update Watermill to v1.0.0-rc.2.

v0.1.0

Pub/Sub implementations were moved from https://github.com/ThreeDotsLabs/watermill to separated repositories.

Watermill SQL is currently in beta stage.