Re: Re: [HACKERS] Support to COMMENT ON DATABASE CURRENT_DATABASE - Mailing list pgsql-hackers

From David Steele
Subject Re: Re: [HACKERS] Support to COMMENT ON DATABASE CURRENT_DATABASE
Date
Msg-id edcab57b-04ec-b01f-8c0d-63a3fc163eb5@pgmasters.net
Whole thread Raw
In response to Re: [HACKERS] Support to COMMENT ON DATABASE CURRENT_DATABASE  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Re: [HACKERS] Support to COMMENT ON DATABASE CURRENT_DATABASE
List pgsql-hackers
Hi Jing,

On 3/1/18 2:09 PM, Tom Lane wrote:
> Jing Wang <jingwangian@gmail.com> writes:
>> [ support_CURRENT_DATABASE_keyword_v4.7.patch ]
> 
> TBH, I think we should reject this patch.  While it's not huge,
> it's not trivial either, and I find the grammar changes rather ugly.
> The argument for using the feature to fix pg_dump issues has evaporated,
> but I don't see anything in the discussion suggesting that people see
> a need for it beyond that.
> 
> I particularly object to inventing a CURRENT_DATABASE parameterless
> function.  That's encroaching on user namespace to no purpose whatever,
> as we already have a perfectly good regular function for that.
> 
> Also, from a user standpoint, turning CURRENT_DATABASE into a fully
> reserved word seems like a bad idea.  If nothing else, that breaks
> queries that are relying on the existing current_database() function.
> The parallel to CURRENT_ROLE is not very good, because there at least
> we can point to the SQL spec and say it's reserved according to the
> standard.  CURRENT_DATABASE has no such excuse.

Based on Tom's feedback, and hearing no opinions to the contrary, I have
marked this patch Rejected.

Regards,
-- 
-David
david@pgmasters.net


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