Re: pgbench - allow to create partitioned tables

Amit Kapila <amit.kapila16@gmail.com>

From: Amit Kapila <amit.kapila16@gmail.com>
To: Rafia Sabih <rafia.pghackers@gmail.com>
Cc: Fabien COELHO <coelho@cri.ensmp.fr>, Alvaro Herrera <alvherre@2ndquadrant.com>, Asif Rehman <asifr.rehman@gmail.com>, PostgreSQL Developers <pgsql-hackers@lists.postgresql.org>
Date: 2019-10-01T23:23:40Z
Lists: pgsql-hackers
On Tue, Oct 1, 2019 at 8:45 PM Rafia Sabih <rafia.pghackers@gmail.com>
wrote:

> On Tue, 1 Oct 2019 at 16:48, Fabien COELHO <coelho@cri.ensmp.fr> wrote:
>
>>
>> >> Yeah, I know that, but this doesn't look quite right.  I mean to say
>> >> whatever we want to say via this message is correct, but I am not
>> >> completely happy with the display part.  How about something like:
>> >> "pgbench_accounts is missing, you need to do initialization (\"pgbench
>> >> -i\") in database \"%s\"\n"?  Feel free to propose something else on
>> >> similar lines?  If possible, I want to convey this information in a
>> single
>> >> sentence.
>> >>
>> >> How about, "pgbench_accounts is missing, initialize (\"pgbench -i\") in
>> > database \"%s\"\n"?
>>
>> I think that we should not presume too much about the solution: perhaps
>> the user did not specify the right database or host and it has nothing to
>> do with initialization.
>>
>> Maybe something like:
>>
>> "pgbench_accounts is missing, perhaps you need to initialize (\"pgbench
>> -i\") in database \"%s\"\n"
>>
>> The two sentences approach has the logic of "error" and a separate "hint"
>> which is often used.
>>
>
> +1 for error and hint separation.
>

Okay, if you people like the approach of two sentences for the separation
of "hint" and "error", then I think the second line should end with a
period.  See below note in docs[1]:
"Grammar and Punctuation

The rules are different for primary error messages and for detail/hint
messages:

Primary error messages: Do not capitalize the first letter. Do not end a
message with a period. Do not even think about ending a message with an
exclamation point.

Detail and hint messages: Use complete sentences, and end each with a
period. Capitalize the first word of sentences. Put two spaces after the
period if another sentence follows (for English text; might be
inappropriate in other languages)."

Also, the similar style is used in other places in code, see
contrib/oid2name/oid2name.c, contrib/pg_standby/pg_standby.c for similar
usage.

I shall modify this before commit unless you disagree.

[1] - https://www.postgresql.org/docs/devel/error-style-guide.html

-- 
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com

Commits

  1. pgbench: add --partitions and --partition-method options.