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          ["dir"] => string(4) "lpbb"
          ["url"] => string(0) ""
          ["setting"] => array(15) {
            ["is_html"] => int(1)
            ["content_is_html"] => int(0)
            ["urlrule"] => int(1)
            ["contenturlrule"] => int(0)
            ["meta_title"] => string(0) ""
            ["meta_keywords"] => string(0) ""
            ["meta_description"] => string(0) ""
            ["category_template"] => string(0) ""
            ["list_template"] => string(0) ""
            ["show_template"] => string(16) "show_waiting.tpl"
            ["formid"] => string(0) ""
            ["url"] => string(0) ""
            ["target"] => string(0) ""
            ["pri_grade_visit"] => array(0) {
            }
            ["pri_grade_add"] => array(0) {
            }
          }
          ["order"] => string(1) "0"
          ["sethtml"] => string(1) "0"
          ["stat"] => string(1) "2"
          ["flowid"] => string(1) "0"
          ["image_mo"] => string(0) ""
          ["page_num"] => string(1) "0"
          ["wxstat"] => string(1) "0"
          ["scope"] => string(0) ""
          ["modelname"] => NULL
        }
        [5] => array(22) {
          ["id"] => string(3) "238"
          ["siteid"] => string(1) "1"
          ["type"] => string(1) "1"
          ["m_id"] => string(1) "0"
          ["p_id"] => string(3) "232"
          ["name"] => string(21) "调查问卷小程序"
          ["thumb"] => string(63) "/modules/cms/uploads/recommend/2020/10/15/06560911073362241.png"
          ["image"] => string(0) ""
          ["desc"] => string(0) ""
          ["pdir"] => string(0) ""
          ["dir"] => string(4) "dcwj"
          ["url"] => string(0) ""
          ["setting"] => array(15) {
            ["is_html"] => int(1)
            ["content_is_html"] => int(0)
            ["urlrule"] => int(1)
            ["contenturlrule"] => int(0)
            ["meta_title"] => string(0) ""
            ["meta_keywords"] => string(0) ""
            ["meta_description"] => string(0) ""
            ["category_template"] => string(0) ""
            ["list_template"] => string(0) ""
            ["show_template"] => string(16) "show_waiting.tpl"
            ["formid"] => string(0) ""
            ["url"] => string(0) ""
            ["target"] => string(0) ""
            ["pri_grade_visit"] => array(0) {
            }
            ["pri_grade_add"] => array(0) {
            }
          }
          ["order"] => string(1) "0"
          ["sethtml"] => string(1) "0"
          ["stat"] => string(1) "2"
          ["flowid"] => string(1) "0"
          ["image_mo"] => string(0) ""
          ["page_num"] => string(1) "0"
          ["wxstat"] => string(1) "0"
          ["scope"] => string(0) ""
          ["modelname"] => NULL
        }
      }
    }
  }
}
				

PostgreSQL被业界誉为“最先进的开源数据库”,面向企业复杂SQL的OLTP业务场景,支持NoSQL数据类型(JSON/XML/hstore)、提供阿里云自研Ganos多维多模时空信息引擎,及PostGIS地理信息引擎。

NoSQL兼容

兼容SQL:2011, 丰富的数据类型,直接支持SQL操作JSON及XML

空间/时空双引擎

自研Ganos时空引擎实现多模型处理能力,支持GPU计算加速,兼容PostGIS地理信息引擎

高效查询

基于成本的SQL查询优化器,多表关联查询性能比MySQL高数倍

安全稳定

SQL审计,身份隔离深入到字段级别;支持IP白名单防DDoS攻击


轻松处理空间/时空信息

支持PostGIS,同时借助自研Ganos时空引擎,基于GeoSQL轻松处理多维几何对象、遥感影像、激光点云、移动对象轨迹等各类空间/时空信息。

Ganos 2/3/4维坐标

几何数据的坐标维数支持2/3/4(with Z/M),支持基于平面和球面计算,支持3D计算,具备高效GIST R-Tree及BRIN索引

Ganos GPU增强

支持多光谱、高光谱影像数据以及DEM高程数据的导入导出、拼接、剪切、统计等各类常规操作,部分函数支持GPU并行计算加速(需采购GPU机型)

Ganos MOD移动对象数据库

具备独一无二的移动对象数据库(MOD),支持轨迹构造、轨迹信息获取、轨迹空间/时空关系判断、轨迹空间处理、轨迹时空统计等丰富功能

Ganos 高级功能

激光点云、拓扑网络(路径)数据存储、查询、分析等高级功能

兼容PostGIS

支持PostGIS空间数据类型、空间分析函数、元数据及函数、二元谓词、空间操作符


强大NoSQL兼容

基于SQL支持JSON、XML、Key-Value等非结构化数据类型,实现另类的Not Only SQL(NOSQL)解决方案

建表时使用JSON数据类型

CREATE TABLE json_tab(id bigint, data jsonb);

直接保存JSON内容

INSERT INTO json_tab VALUES (1,'{"pname":"产品1","qty":50}')

直接查询JSON信息

SELECT * FROM json_tab WHERE data->>'qty' > 30

对JSON的属性进行索引提高性能

CREATE INDEX idx_json_tab_data_pname ON json_tab USING btree ((data ->> 'pname'));

与现有关系表进行JOIN查询

SELECT * FROM json_tab JOIN product ON (products.pname=json_data.data->>'pname') WHERE data->>'qty' > 30;


支持全文搜索

通过全文搜索,应用将不再需要额外搭建搜索引擎,只通过SQL操作即可实现全文检索(Full Text Search)及模糊查询。

功能丰富

支持中文分词、自定义词库,可对现有词库进行智能学习处理,持续优化。同时可以实现:“结巴分词”、“相似度分析”、“相似度索引”、“正则匹配”等高级功能,通过SQL引擎完成整套分词操作过程,让用户免去重复开发的烦恼。


支持OSS云存储扩展

基于PostgreSQL的FDW功能,阿里云深度整合优化了对OSS云存储的外部表管理功能,可以支持2TB以上存储空间无限扩展。

可读、可写、空间无限扩展

用户可以通过外部表的方式将OSS云存储中的CSV格式化文件当成本地数据表进行使用。支持与本地数据表进行JOIN,支持数据读写,从而也借助OSS的能力,使得数据库的存储空间可以随意扩展到任意大小,满足企业用户对冷热数据生命周期管理的需求。OSS存储外部表功能还支持数据压缩,用户可以使用标准gzip算法进行csv文件压缩,有效缩短数据写入到OSS的时间,同时节省存储费用可达50%以上。


支持数据仓库

通过PostgreSQL除了在高可用方面能够满足OLTP在线应用的要求外,需要进行实时分析的数据,还可以扩展支持OLAP数据仓库的业务。

OLAP+OLTP=HTAP

在线数据库和数据仓库使用相同的开发协议接口,可以帮助中小企业降低IT研发成本。当TB级的数据需要进行分析时,时可以通过同样基于PostgreSQL内核的“云数据库HybridDB”实现可横向扩展的OLAP数据仓库,支持总量达百TB甚至PB级的数据分析BI业务。