Method Compare

pkg/sql/sem/tree/datum.go:5069–5098

Compare implements the Datum interface.

(ctx context.Context, cmpCtx CompareContext, other Datum)

// Compare implements the Datum interface.
func (d *DArray) Compare(ctx context.Context, cmpCtx CompareContext, other Datum) (int, error) {
	if other == DNull {
		// NULL is less than any non-NULL value.
		return 1, nil
	}
	v, ok := cmpCtx.UnwrapDatum(ctx, other).(*DArray)
	if !ok {
		return 0, makeUnsupportedComparisonMessage(d, other)
	}
	n := d.Len()
	if n > v.Len() {
		n = v.Len()
	}
	for i := 0; i < n; i++ {
		c, err := d.Array[i].Compare(ctx, cmpCtx, v.Array[i])
		if err != nil {
			return 0, err
		}
		if c != 0 {
			return c, nil
		}
	}
	if d.Len() < v.Len() {
		return -1, nil
	}
	if d.Len() > v.Len() {
		return 1, nil
	}
	return 0, nil
}

// Prev implements the Datum interface.
func (d *DArray) Prev(ctx context.Context, cmpCtx CompareContext) (Datum, bool) {