message: fix: error handling for index removal from selected field
diff: @@ -3233,7 +3233,8 @@ func (r *ClickHouseReader) UpdateLogField(ctx context.Context, field *model.Upda
  // remove index
  query := fmt.Sprintf("ALTER TABLE %s.%s ON CLUSTER %s DROP INDEX IF EXISTS %s_idx", r.logsDB, r.logsLocalTable, cluster, field.Name)
  err := r.db.Exec(ctx, query)
  - if err != nil {
  + // we are ignoring errors with code 341 as it is an error with updating old part https://github.com/SigNoz/engineering-pod/issues/919#issuecomment-1366344346
  + if err != nil && !strings.HasPrefix(err.Error(), "code: 341") {
  return &model.ApiError{Err: err, Typ: model.ErrorInternal}
  }
  }
  