Method IoOutput

server/types/type.go:622–642

IoOutput converts given type value to output string.

(ctx *sql.Context, val any)

// IoOutput converts given type value to output string.
func (t *DoltgresType) IoOutput(ctx *sql.Context, val any) (string, error) {
	var o any
	var err error
	if t.ModInFunc != 0 || t.IsArrayType() || t.IsCompositeType() {
		send := globalFunctionRegistry.GetFunction(ctx, t.OutputFunc)
		resolvedTypes := send.ResolvedTypes()
		resolvedTypes[0] = t
		o, err = send.WithResolvedTypes(resolvedTypes).(QuickFunction).CallVariadic(ctx, val)
	} else {
		o, err = globalFunctionRegistry.GetFunction(ctx, t.OutputFunc).CallVariadic(ctx, val)
	}
	if err != nil {
		return "", err
	}
	var ok bool
	os, ok, err := sql.Unwrap[string](ctx, o)
	if !ok {
		return "", errors.Errorf("unexpected type for io output, expected string, got %T", val)
	}
	return os, err
}

// IsArrayType returns true if the type is of 'array' type.
// It can be array category with empty its array attribute NULL and element attribute NOT NULL.