| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Greg Smith <greg(at)2ndquadrant(dot)com> |
| Cc: | Itagaki Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp>, Euler Taveira de Oliveira <euler(at)timbira(dot)com>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: EXPLAIN BUFFERS |
| Date: | 2009-12-08 10:46:04 |
| Message-ID: | 9D458AE9-9C62-4682-9B57-DA6F3D5DF83C@gmail.com |
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| Lists: | pgsql-hackers |
On Dec 8, 2009, at 12:05 AM, Greg Smith <greg(at)2ndquadrant(dot)com> wrote:
> Robert Haas wrote:
>> I could live with the equals signs, but the use of parentheses seems
>> weird and inconsistent with normal english usage (which permits
>> parentheses as a means of making parenthetical comments).
> But it is consistent with people seeing:
>
> Seq Scan on foo (cost=0.00..155.00 rows=10000 width=4)
>
> Which seems to be what was being emulated here. I though that was
> pretty reasonable given this is a related feature.
It's not the same at all. The essence of a parenthetical phrase is
that it can be omitted without turning what's left into nonsense - and
in fact we have COSTS OFF, which does just that. Omitting only the
parenthesized portions of the proposed output would not be sensible.
...Robert
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