fix query build when no query args are provided

Author: imperfect-fourth

cmd/eywagen/eywatest/eywa_test.go

@@ -10,6 +10,16 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+func TestSelectQuerySimple(t *testing.T) {
+	q := eywa.Get[testTable]().Select(testTable_Name)
+
+	expected := `query get_test_table {
+test_table {
+name
+}
+}`
+	assert.Equal(t, expected, q.Query())
+}
 func TestSelectQuery(t *testing.T) {
 	age := 10
 	q := eywa.Get[testTable]().Limit(2).Offset(1).DistinctOn(testTable_Name).OrderBy(

query_arg.go

@@ -28,6 +28,9 @@ func (qa queryArgs[M]) MarshalGQL() string {
 	args = appendArg(args, qa.object)
 	args = appendArg(args, qa.onConflict)
 
+	if len(args) == 0 {
+		return ""
+	}
 	return fmt.Sprintf("(%s)", strings.Join(args, ", "))
 }