Re: backup to partitioned table

On 11/16/22 09:56, Erik Serrano wrote:
> Hello Guys,
> I have a case that I would like you to help me with.
>
> I have a partitioned table in postgresql version 9,5 to which I select and
> it returns data perfectly, but when I want to make a backup of the table,
> it only saves the structure without records.
> It should be noted that I am not making a backup of the structure, but of
> the data or complete, but it does not back up the data anyway.
> When consulting the administrator, he informs me that it is a partitioned
> table and that it is always zero, but the data is in its "daughter" tables
> and that the select that it returns is the information that is housed in
> all its daughter tables.

That is correct.

>
> Now, given this, I wanted to know if there is any way to make a backup of
> the table that throws all the data from its child tables *into a flat file*.

Flat file as in a CSV file?

>
> Is it possible to perform this action?

If you want to export it to a CSV (or tab-separated, etc, etc) flat file,
then -- if using psql, use the COPY or \COPY command; instead of simply
specifying a table name, copy the *query* (SELECT * FROM parent_table).

If that's not what you mean, please clarify.

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