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上车！GBase 8a开发者联盟发车了 技术福利、人脉资源全都有！

认证培训专区

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GBase 8s GDCA 认证培训课前准备

GBase 8a

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物化视图报错：references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them

01-GBase 8s 事务型数据库 安装与卸载

GBase 8s

适配迁移

[GBase 8s 教程]GBase 8s 常用函数、表达式

PG_INHERITS系统表记录关于表继承层次的信息。数据库里每个直接的子系表都有一条记录。间接的继承可以通过追溯记录链来判断。<figure class="table" style="width:99.9600%;"><table style=";"><tbody><tr><td style="background-color:rgb(215, 215, 215);border:1.0000pt solid windowtext;padding:6.0000pt 9.0000pt;vertical-align:top;width:12.1000%;">名称</td><td style="background-color:rgb(215, 215, 215);border:1.0000pt solid windowtext;padding:6.0000pt 9.0000pt;vertical-align:top;width:11.5400%;">类型</td><td style="background-color:rgb(215, 215, 215);border:1.0000pt solid windowtext;padding:6.0000pt 9.0000pt;vertical-align:top;width:20.6000%;">引用</td><td style="background-color:rgb(215, 215, 215);border:1.0000pt solid windowtext;padding:6.0000pt 9.0000pt;vertical-align:top;width:55.7400%;">描述</td></tr><tr><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:12.1000%;">inhrelid</td><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:11.5400%;">oid</td><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:20.6000%;">href="https://opengauss.org/zh/docs/3.0.0/docs/Developerguide/PG_CLASS.html" PG_CLASS.oid</td><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:55.7400%;">子表的OID。</td></tr><tr><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:12.1000%;">inhparent</td><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:11.5400%;">oid</td><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:20.6000%;">href="https://opengauss.org/zh/docs/3.0.0/docs/Developerguide/PG_CLASS.html" PG_CLASS.oid</td><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:55.7400%;">父表的OID。</td></tr><tr><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:12.1000%;">inhseqno</td><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:11.5400%;">integer</td><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:20.6000%;">-</td><td style="border-bottom:1.0000pt solid windowtext;border-left:1.0000pt solid windowtext;border-right:1.0000pt solid windowtext;border-top-style:none;padding:6.0000pt 9.0000pt;vertical-align:top;width:55.7400%;">如果一个子表存在多个直系父表（多重继承），这个数字表明此继承字段的排列顺序。计数从1开始。</td></tr></tbody></table></figure>

GBase 8c

PG_INHERITS系统表介绍

名称	类型	引用	描述
inhrelid	oid	href="https://opengauss.org/zh/docs/3.0.0/docs/Developerguide/PG_CLASS.html" PG_CLASS.oid	子表的OID。
inhparent	oid	href="https://opengauss.org/zh/docs/3.0.0/docs/Developerguide/PG_CLASS.html" PG_CLASS.oid	父表的OID。
inhseqno	integer	-	如果一个子表存在多个直系父表（多重继承），这个数字表明此继承字段的排列顺序。计数从1开始。

PG_INHERITS系统表介绍

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