PostgreSQL 是一种对象

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PostgreSQL 是一种对象-关系型数据库管理系统(ORDBMS),也是目前功能最强大、特性最丰富和最复杂的自由软件数据库系统.它起源于伯克利(BSD)的数据库研究计划,目前是最重要的开源数据库产品开发项目之一-PostgreSQL is an object- relational database management system (ORDBMS), is currently the most powerful characteristics of the most abundant and most complex of the free software database system. It originated in Berkeley (BSD) database of research projects, is currently the most important open-source database product development projects