# Constants
DefaultFetchLimit is the number of messages to fetch in each select query on a message stream.
DefaultPollInterval is the default time to wait between polls in MessageStream.Next().
# Structs
GlobalFetcher is a fetcher that fetches rows for the entire store.
Store is a MySQL-backed implementation of Ax's messagestore.GloballyOrderedStore interface.
Stream is a MySQL-backed implementation of Ax's messagestore.Stream interface.
StreamFetcher is a fetcher that fetches rows for a specific stream.
# Interfaces
Fetcher is an interface for fetching rows from the message store.