Re: 20220722-pg_dump: error: invalid number of parents 0 for table

On 7/22/22 8:20 AM, Techsupport wrote:
> *Hi Team,*
>
> We are using PostgreSQL 12.3, It is running under windows
>
> In that server there is nearly 8 databases are running.
>
> I have changed the data directory from one drive to another drive. At
> the time of change the data directory,
>
> have stopped the PostgreSQL  instance and Copy the contents under the
> data directory and paste it on the new drive,
>
> and changed the data directory in the  registry and start the instance.
>
> After that all the databases are working, but unable to take backup for
> one database.
>
> In 8 database, I have faced this issue in one database.
>
> When I see the log file it gives the following error,
>

>
> */2022-07-16 12:21:42.460 +04 [12936] WARNING:  could not write block 9
> of pg_tblspc/907117/PG_12_201909212/907120/2611/*
>
> */2022-07-16 12:21:42.460 +04 [12936] DETAIL:  Multiple failures ---
> write error might be permanent./*
>
> …
>
> When I try to back up by using command prompt it shows the below error
>
> *//*
>
> */pg_dump: error: invalid number of parents 0 for table "<partition
> Table name>"/*
>
> suggest me how to solve this issue.

Do you have table spaces other then the default set up? In particular
for partitioned tables.

>
> Thanks in advance.
>
> *Thanks,*
>
> *Karthick Ramu*
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com