On error save SQL request parameters to span.

save.go

@@ -104,6 +104,18 @@ func SaveRow(ctx context.Context, db *db.DBC, dataItem meta.IMetaStruct) error {
 			sqlSmt = sqlSmt[0:200]
 		}
 
+		span.SetAttributes(
+			attribute.Int("sql_param_amount", len(params)),
+		)
+
+		// Convert SQL request parameters to slice of strings.
+		paramStrs := convertInterfacesToStrings(ctx, params)
+		if len(paramStrs) > 0 {
+			span.SetAttributes(
+				attribute.StringSlice("sql_params", paramStrs),
+			)
+		}
+
 		resultErr := errors.Errorf("Can not execute SaveRow. Got error from updateBuilder.ExecContext. %s (%s)", err.Error(), sqlSmt)
 		span.RecordError(resultErr)
 		span.SetStatus(codes.Error, resultErr.Error())
@@ -118,6 +130,20 @@ func SaveRow(ctx context.Context, db *db.DBC, dataItem meta.IMetaStruct) error {
 	return nil
 }
 
+func convertInterfacesToStrings(ctx context.Context, items []interface{}) []string {
+	itemAmount := len(items)
+	if itemAmount == 0 {
+		return nil
+	}
+
+	strs := make([]string, itemAmount)
+	for i, item := range items {
+		strs[i] = fmt.Sprint(item)
+	}
+
+	return strs
+}
+
 func SaveMetaRootStruct(
 	ctx context.Context,
 	db *db.DBC,