[-] fix serialization of errors in db logger (#744)

Author: MaxaiZer

internal/pgengine/log_hook.go

@@ -141,6 +141,12 @@ func (hook *LogHook) send(cache []logrus.Entry) {
 		[]string{"ts", "client_name", "pid", "log_level", "message", "message_data"},
 		pgx.CopyFromSlice(len(cache),
 			func(i int) ([]any, error) {
+				if errVal, ok := cache[i].Data[logrus.ErrorKey]; ok {
+					if e, isErr := errVal.(error); isErr && e != nil {
+						cache[i].Data[logrus.ErrorKey] = e.Error()
+					}
+				}
+
 				jsonData, err := json.Marshal(cache[i].Data)
 				if err != nil {
 					return nil, err

internal/pgengine/transaction.go

@@ -124,14 +124,15 @@ func (pge *PgEngine) ExecuteSQLCommand(ctx context.Context, executor executor, t
 	}
 	if len(paramValues) == 0 { //mimic empty param
 		ct, e := executor.Exec(ctx, task.Command)
-		pge.LogTaskExecution(context.Background(), task, errCodes[err != nil], ct.String(), "")
+		pge.LogTaskExecution(context.Background(), task, errCodes[e != nil], ct.String(), "")
 		return e
 	}
 	for _, val := range paramValues {
 		if val == "" {
 			continue
 		}
-		if err = json.Unmarshal([]byte(val), &params); err != nil {
+		if parseErr := json.Unmarshal([]byte(val), &params); parseErr != nil {
+			err = errors.Join(err, fmt.Errorf("failed to parse parameter %s: %w", val, parseErr))
 			return
 		}
 		ct, e := executor.Exec(ctx, task.Command, params...)