// default maxsize=int64 Max value and ttl=1h
	PrepareStmtMaxSize int
	PrepareStmtTTL     time.Duration

	// DisableAutomaticPing
	DisableAutomaticPing bool
	// DisableForeignKeyConstraintWhenMigrating
	DisableForeignKeyConstraintWhenMigrating bool
	// IgnoreRelationshipsWhenMigrating
	IgnoreRelationshipsWhenMigrating bool
	// DisableNestedTransaction disable nested transaction
	DisableNestedTransaction bool