Re: Need exact SQL query to find List of Detach Partitioned Tables (Yet to be Dropped)

On 11/15/24 11:46, Bharani SV-forum wrote:
>  Team
>
> Need exact SQL query to find List of Detach Partitioned Tables (Yet to
> be Dropped)
>
> The following is the query which i used, i am using and i found an bug
> which is listing an newly created table (last week)

As David G. Johnston said how would you know it was formally a partition?:

https://www.postgresql.org/docs/current/sql-altertable.html

"
DETACH PARTITION partition_name [ CONCURRENTLY | FINALIZE ]

This form detaches the specified partition of the target table. The
detached partition continues to exist as a standalone table, but no
longer has any ties to the table from which it was detached.

[...]
"

The only I could see this working is if you had a standard naming scheme
for partitions and then you could do a regex search in pg_class for that
pattern where relkind = 'r'.

>
> SELECT relnamespace::regnamespace::text AS schema_name, relname AS
> table_name
> FROM   pg_class c
> WHERE  NOT relispartition  -- !
> AND    relkind = 'r' and lower(relnamespace::regnamespace::text) not in
> ('pg_catalog','partman','information_schema')  and
> lower(relnamespace::regnamespace::text) in ('XYZ')
> order by  relnamespace::regnamespace::text, relname ;

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