fix: update error message for decimal value size limit

Author: RaphDal

buffer_test.go

@@ -608,7 +608,7 @@ func TestDecimalColumnErrors(t *testing.T) {
 		bigVal := new(big.Int).Lsh(big.NewInt(1), 2100)
 		dec := qdb.NewDecimal(bigVal, 0)
 		err := buf.Table(testTable).DecimalColumn("price", dec).At(time.Time{}, false)
-		assert.ErrorContains(t, err, "exceeds 256-bit range")
+		assert.ErrorContains(t, err, "exceeds 127-bytes limit")
 		assert.Empty(t, buf.Messages())
 	})
 

decimal.go

@@ -139,7 +139,7 @@ func (d ScaledDecimal) toBinary() (byte, []byte, error) {
 		payload = []byte{0}
 	}
 	if len(payload) > maxDecimalBytes {
-		return 0, nil, fmt.Errorf("decimal value exceeds 256-bit range (got %d bytes)", len(payload))
+		return 0, nil, fmt.Errorf("decimal value exceeds 127-bytes limit (got %d bytes)", len(payload))
 	}
 	return byte(d.scale), payload, nil
 }