Method Eval

server/expression/array.go:66–104

Eval implements the sql.Expression interface.

(ctx *sql.Context, row sql.Row)

// Eval implements the sql.Expression interface.
func (array *Array) Eval(ctx *sql.Context, row sql.Row) (any, error) {
	resultTyp := array.coercedType.ArrayBaseType()
	values := make([]any, len(array.children))
	castsColl, err := core.GetCastsCollectionFromContext(ctx, "")
	if err != nil {
		return nil, err
	}
	for i, expr := range array.children {
		val, err := expr.Eval(ctx, row)
		if err != nil {
			return nil, err
		}

		if val == nil {
			values[i] = val
			continue
		}

		doltgresType, ok := expr.Type(ctx).(*pgtypes.DoltgresType)
		if !ok {
			return nil, errors.Errorf("expected DoltgresType, but got %s", expr.Type(ctx).String())
		}

		// We always cast the element, as there may be parameter restrictions in place
		cast, err := castsColl.GetImplicitCast(ctx, doltgresType, resultTyp)
		if err != nil {
			return nil, err
		}
		if !cast.ID.IsValid() {
			return nil, errors.Errorf("cannot find cast function from %s to %s", doltgresType.String(), resultTyp.String())
		}

		values[i], err = cast.Eval(ctx, val, doltgresType, resultTyp)
		if err != nil {
			return nil, err
		}
	}
	return values, nil
}

// IsNullable implements the sql.Expression interface.
func (array *Array) IsNullable(ctx *sql.Context) bool {