docs: private static boolean isNullRejecting(Collection<String> tableAliases,
              List<AbstractExpression> exprs) {
          for (AbstractExpression expr : exprs) {
              for (String tableAlias : tableAliases) {
                  if (ExpressionUtil.isNullRejectingExpression(expr, tableAlias)) {
                      // We are done at this level
                      return true;
                  }
              }
          }
          return false;
      }