Re: Inherited table identification possible
| От | Stephen Belcher |
|---|---|
| Тема | Re: Inherited table identification possible |
| Дата | |
| Msg-id | CADJqQNmmH+F+jOO83W9vxBLov_yw5Ry+xj4Ag2daPN7WDEWnMA@mail.gmail.com обсуждение исходный текст |
| Ответ на | Inherited table identification possible (George Woodring <george.woodring@iglass.net>) |
| Ответы |
Re: Inherited table identification possible
|
| Список | pgsql-sql |
Yes, the system column "tableoid" identifies the actual table in which the row is stored. If you cast this to "regclass" you'll get the name of the table that the row is stored in:
SELECT tableoid::regclass FROM base_table;
There's more documentation on this available at http://www.postgresql.org/docs/9.1/static/ddl-inherit.html (for version 9.1, at any rate: season to taste with your version of PG)
Hope this helps,
Hope this helps,
--Stephen
On Thu, May 24, 2012 at 2:01 PM, George Woodring <george.woodring@iglass.net> wrote:
Is it possible to identify which inherited table data came from in a query? We have a table that has 3 inherited tables attached to it. I am looking for a way to identify the source of the data.My only thought would be to add a column to the tables that identify the table. I was just checking if there was a way to do it without the column.Thanks,George
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