Re: Correction for replication slot creation error message in 9.6

On 2016-03-31 10:15:21 +0900, Ian Barwick wrote:
> Hi
> 
> Currently pg_create_physical_replication_slot() may refer to
> the deprecated wal_level setting "archive":
> 
>   postgres=# SHOW wal_level ;
>    wal_level
>   -----------
>    minimal
>   (1 row)
> 
>   postgres=# SELECT pg_create_physical_replication_slot('some_slot');
>   ERROR:  replication slots can only be used if wal_level is  >= archive
> 
> Patch changes the error message to:
> 
>   ERROR:  replication slots can only be used if wal_level is "replica" or "logical"
> 
> Explicitly naming the valid WAL levels matches the wording in the wal_level
> error hint used in a couple of places, i.e.

The explicit naming makes it much more verbose to change anything around
wal level though, so consider me not a fan of spelling out all levels.

Greetings,

Andres Freund