diff --git a/clients/bigquery/storagewrite_test.go b/clients/bigquery/storagewrite_test.go
index 1c4158423..967a6020b 100644
--- a/clients/bigquery/storagewrite_test.go
+++ b/clients/bigquery/storagewrite_test.go
@@ -37,6 +37,7 @@ func TestRowToMessage(t *testing.T) {
 		columns.NewColumn("c_float64", typing.Float),
 		columns.NewColumn("c_numeric", typing.EDecimal),
 		columns.NewColumn("c_string", typing.String),
+		columns.NewColumn("c_string_decimal", typing.String),
 		columns.NewColumn("c_time", typing.NewKindDetailsFromTemplate(typing.ETime, ext.TimeKindType)),
 		columns.NewColumn("c_date", typing.NewKindDetailsFromTemplate(typing.ETime, ext.DateKindType)),
 		columns.NewColumn("c_datetime", typing.NewKindDetailsFromTemplate(typing.ETime, ext.DateTimeKindType)),
@@ -45,19 +46,20 @@ func TestRowToMessage(t *testing.T) {
 	}
 
 	row := map[string]any{
-		"c_bool":     true,
-		"c_int":      int(1234),
-		"c_int32":    int32(1234),
-		"c_int64":    int64(1234),
-		"c_float32":  float32(1234.567),
-		"c_float64":  float64(1234.567),
-		"c_numeric":  decimal.NewDecimal(nil, 5, big.NewFloat(3.1415926)),
-		"c_string":   "foo bar",
-		"c_time":     ext.NewExtendedTime(time.Date(0, 0, 0, 4, 5, 6, 7, time.UTC), ext.TimeKindType, ""),
-		"c_date":     ext.NewExtendedTime(time.Date(2001, 2, 3, 0, 0, 0, 0, time.UTC), ext.DateKindType, ""),
-		"c_datetime": ext.NewExtendedTime(time.Date(2001, 2, 3, 4, 5, 6, 7, time.UTC), ext.DateTimeKindType, ""),
-		"c_struct":   map[string]any{"baz": []string{"foo", "bar"}},
-		"c_array":    []string{"foo", "bar"},
+		"c_bool":           true,
+		"c_int":            int(1234),
+		"c_int32":          int32(1234),
+		"c_int64":          int64(1234),
+		"c_float32":        float32(1234.567),
+		"c_float64":        float64(1234.567),
+		"c_numeric":        decimal.NewDecimal(nil, 5, big.NewFloat(3.1415926)),
+		"c_string":         "foo bar",
+		"c_string_decimal": decimal.NewDecimal(nil, 5, big.NewFloat(1.618033)),
+		"c_time":           ext.NewExtendedTime(time.Date(0, 0, 0, 4, 5, 6, 7, time.UTC), ext.TimeKindType, ""),
+		"c_date":           ext.NewExtendedTime(time.Date(2001, 2, 3, 0, 0, 0, 0, time.UTC), ext.DateKindType, ""),
+		"c_datetime":       ext.NewExtendedTime(time.Date(2001, 2, 3, 4, 5, 6, 7, time.UTC), ext.DateTimeKindType, ""),
+		"c_struct":         map[string]any{"baz": []string{"foo", "bar"}},
+		"c_array":          []string{"foo", "bar"},
 	}
 
 	desc, err := columnsToMessageDescriptor(columns)
@@ -73,18 +75,19 @@ func TestRowToMessage(t *testing.T) {
 	assert.NoError(t, json.Unmarshal(bytes, &result))
 
 	assert.Equal(t, map[string]any{
-		"cBool":     true,
-		"cFloat32":  1234.5670166015625,
-		"cFloat64":  1234.567,
-		"cInt":      "1234",
-		"cInt32":    "1234",
-		"cInt64":    "1234",
-		"cNumeric":  "3.14159",
-		"cString":   "foo bar",
-		"cTime":     "17521704960",
-		"cDate":     float64(11356),
-		"cDatetime": "981173106000000",
-		"cStruct":   `{"baz":["foo","bar"]}`,
-		"cArray":    []any{"foo", "bar"},
+		"cBool":          true,
+		"cFloat32":       1234.5670166015625,
+		"cFloat64":       1234.567,
+		"cInt":           "1234",
+		"cInt32":         "1234",
+		"cInt64":         "1234",
+		"cNumeric":       "3.14159",
+		"cString":        "foo bar",
+		"cStringDecimal": "1.61803",
+		"cTime":          "17521704960",
+		"cDate":          float64(11356),
+		"cDatetime":      "981173106000000",
+		"cStruct":        `{"baz":["foo","bar"]}`,
+		"cArray":         []any{"foo", "bar"},
 	}, result)
 }