Add field limit

quesma/util/utils.go

@@ -910,6 +910,20 @@ func FieldToColumnEncoder(field string) string {
 	if isDigit(newField[0]) {
 		newField = "_" + newField
 	}
+
+	const maxFieldLength = 256
+
+	if len(newField) > maxFieldLength {
+		// TODO maybe we should return error here or truncate the field name
+		// for now we just log a warning
+		//
+		// importing logger causes the circular dependency
+		//logger.Warn().Msgf("Field name %s is too long.", newField)
+
+		// TODO So we use log package. We can configure the zerolog logger as a backend for log package.
+		log.Println("Field name", newField, "is too long.")
+	}
+
 	return newField
 }