String computeTableName(RegionMapping regionMapping) {
    String result = regionMapping.getTableName();
    if (result == null) {
      result = regionMapping.getRegionName();
    }
    return result;
  }
If the region mapping has been given a table name then return it.
Otherwise return the region mapping's region name as the table name.
geode-connectors/src/main/java/org/apache/geode/connectors/jdbc/internal/TableMetaDataManager.java