String getCatalogNameFromMetaData(DatabaseMetaData metaData, RegionMapping regionMapping)
      throws SQLException {
    String catalogFilter = regionMapping.getCatalog();
    if (catalogFilter == null || catalogFilter.isEmpty()) {
      return DEFAULT_CATALOG;
    }
    try (ResultSet catalogs = metaData.getCatalogs()) {
      return findMatchInResultSet(catalogFilter, catalogs, "TABLE_CAT", "catalog");
    }
  }
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