@eventide/message-db/database/update/1.0.0.md

Microservice native event store and message store for Postgres

# 1.0.0 Update

Note: Formerly, `postgres-message-store`.

The following changes are made by the 1.0.0.sh update script:

- **Note: There are no changes to the `messages` table, and no data migration is necessary**
- The executables named `evt-pg-*` are renamed to `mdb-*`
- **[breaking change]** The `get_category_messages` server function supports pub/sub directly by receiving a `correlation` argument and composing the correlation metadata query condition directly in the server function ([http://docs.eventide-project.org/user-guide/message-db/server-functions.html#get-messages-from-a-category](http://docs.eventide-project.org/user-guide/message-db/server-functions.html#get-messages-from-a-category))
- **[breaking change]** The message_store database and its objects are contained in a Postgres schema named `message_store`
- **[breaking change]** The `get_category_messages` server function supports consumer groups via the `consumer_group_member` and `consumer_group_size` parameters ([http://docs.eventide-project.org/user-guide/message-db/server-functions.html#get-messages-from-a-category](http://docs.eventide-project.org/user-guide/message-db/server-functions.html#get-messages-from-a-category))
- The retrieval server functions provide debugging output that is activated via the Postgres setting, `message_store.debug_get` ([http://docs.eventide-project.org/user-guide/message-db/server-functions.html#debugging-output](http://docs.eventide-project.org/user-guide/message-db/server-functions.html#debugging-output))
- The write server function provides debugging output that is activated via the Postgres setting, `message_store.debug_write` ([http://docs.eventide-project.org/user-guide/message-db/server-functions.html#debugging-output](http://docs.eventide-project.org/user-guide/message-db/server-functions.html#debugging-output))
- The `message_store.debug` Postgres setting activates both the retrieval and write debug output ([http://docs.eventide-project.org/user-guide/message-db/server-functions.html#debugging-output](http://docs.eventide-project.org/user-guide/message-db/server-functions.html#debugging-output))
- `id` stream parsing function ([http://docs.eventide-project.org/user-guide/message-db/server-functions.html#get-the-id-from-a-stream-name](http://docs.eventide-project.org/user-guide/message-db/server-functions.html#get-the-id-from-a-stream-name))
- `cardinal_id` stream parsing function ([http://docs.eventide-project.org/user-guide/message-db/server-functions.html#get-the-cardinal-id-from-a-stream-name](http://docs.eventide-project.org/user-guide/message-db/server-functions.html#get-the-cardinal-id-from-a-stream-name))
- `acquire_lock` function encapsulates the application of the advisory lock used by the `write_message` function ([http://docs.eventide-project.org/user-guide/message-db/server-functions.html#get-message-store-database-schema-version](http://docs.eventide-project.org/user-guide/message-db/server-functions.html#get-message-store-database-schema-version))
- Database management tool output is clarified
- **[breaking change]** All server function parameter names are no longer named with underscore prefixes ([http://docs.eventide-project.org/user-guide/message-db/server-functions.html](http://docs.eventide-project.org/user-guide/message-db/server-functions.html))
- Indexes are no longer built with the `CONCURRENTLY` option ([http://docs.eventide-project.org/user-guide/message-db/anatomy.html#source-code](http://docs.eventide-project.org/user-guide/message-db/anatomy.html#source-code))
- **[breaking change]** The `messages_category_global_position_idx` is removed and replaced with the `messages_category` index, which now indexes correlation metadata
- **[breaking change]** The `messages_stream_name_position_uniq_idx` is removed and replaced with the `messages_stream` index, which now indexes correlation metadata
- **[breaking change]** The `messages_id_uniq_idx` is removed and replaced with the `messages_id` index
- Message DB RubyGem: [https://github.com/message-db/ruby-gem](https://github.com/message-db/ruby-gem)
- Message DB NPM Module: [https://github.com/message-db/npm-module](https://github.com/message-db/npm-module)
- Improvements to interactive tests ([https://github.com/eventide-project/message-store-postgres/tree/master/test](https://github.com/eventide-project/message-store-postgres/tree/master/test))