/// <summary>
 /// 构造函数
 /// </summary>
 /// <param name="odbObj"></param>
 /// <param name="tbIndex"></param>
 public PostgrelVectorDataService(PostgrelDBObject odbObj, string indexTable)
 {
     _connStr = odbObj.ConnStr;
     _geometryColumnsTableName = indexTable;
 }
 /// <summary>
 /// 构造函数
 /// </summary>
 public PostgrelVectorDataService(PostgrelDBObject odbObj)
 {
     _connStr = odbObj.ConnStr;
 }