code: private boolean isInteger(String columnOrConstant, List<String> tableNames, boolean debugPrint) {
          return isIntegerConstant(columnOrConstant) || isIntegerColumn(columnOrConstant, tableNames, debugPrint);
      }
docs: Returns true if the <i>columnOrConstant</i> is either an integer
  constant or an integer column (including types TINYINT, SMALLINT,
  INTEGER, BIGINT, or equivalents in a comparison, non-VoltDB database);
  false otherwise.