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pkg/connection/prepared_stmt_converter.go

@@ -63,6 +63,10 @@ type jsonDoubleValueStruct struct {
 	value float64
 }
 
+// MarshalJSON ensures that the double value is always formatted with a decimal point
+// even if it's an integer. This is necessary because Exasol expects a decimal point
+// for double values.
+// See https://github.com/exasol/exasol-driver-go/issues/108 for details.
 func (j *jsonDoubleValueStruct) MarshalJSON() ([]byte, error) {
 	r, err := json.Marshal(j.value)
 	if err != nil {

pkg/connection/prepared_stmt_converter_test.go

@@ -109,7 +109,6 @@ func TestConvertArgs(t *testing.T) {
 				t.Errorf("Error converting arg: %v", err)
 				return
 			}
-
 			actualJson, err := json.Marshal(converted)
 			if err != nil {
 				t.Errorf("Error marshalling converted arg '%v' of type %T: %v", converted, converted, err)