[doc] improve tableoid description

From: Ian Lawrence Barwick <barwick(at)gmail(dot)com>
To: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: [doc] improve tableoid description
Date: 2020-10-17 13:04:38
Message-ID: CAB8KJ=gFmBXP=P9htziOj+WM5PDAK4qc7iGQta+8kUh306kQnw@mail.gmail.com
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[doc] improve tableoid description

Hi

Attached patch aims to improve the description of the tableoid system column [1]
by:

- mentioning it's useful for determining table names for partitioned tables as
well as for those in inheritance hierarchies
- mentioning the possibility of casting tableoid to regclass (which is simpler
than the currently suggested join on pg_class, which is only needed if
the schema name is absolutely required)

[1] https://www.postgresql.org/docs/current/ddl-system-columns.html

Regards

Ian Barwick

--
EnterpriseDB: https://www.enterprisedb.com

Attachment Content-Type Size
doc-tableoid-regclass.v1.patch text/x-patch 1.4 KB

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