Function NewPostgresType

pgtypes/pgtypes.go:391–409

(registry *pgtype.Map, oid uint32, modifier int32)

	Size int32
	// Fallback indicates that the type is not supported by the pgtype package and is approximated to the `text` fallback type.
	Fallback bool
}

func NewPostgresType(registry *pgtype.Map, oid uint32, modifier int32) (PostgresType, error) {
	t, ok := registry.TypeForOID(oid)
	if !ok {
		return PostgresType{}, fmt.Errorf("unsupported type OID %d", oid)
	}

	var precision, scale int32
	switch oid {
	case pgtype.NumericOID, pgtype.NumericArrayOID:
		precision, scale, _ = DecodePrecisionScale(int(modifier))
	}

	return PostgresType{
		PG:        t,
		Precision: precision,
		Scale:     scale,
		Size:      PostgresTypeSize(oid),
	}, nil
}