package database import ( "context" "github.com/openimsdk/open-im-server/v3/pkg/common/storage/model" "time" ) const ( FirstVersion = 1 DefaultDeleteVersion = 0 ) type VersionLog interface { IncrVersion(ctx context.Context, dId string, eIds []string, state int32) error FindChangeLog(ctx context.Context, dId string, version uint, limit int) (*model.VersionLog, error) DeleteAfterUnchangedLog(ctx context.Context, deadline time.Time) error Delete(ctx context.Context, dId string) error }