Re: [WIP] showing index maintenance on EXPLAIN

On Thu, May 8, 2014 at 10:41 AM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> On Thu, May 8, 2014 at 2:31 AM, Jaime Casanova <jaime(at)2ndquadrant(dot)com> wrote:
>> On Wed, May 7, 2014 at 10:52 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
>>> On Thu, May 8, 2014 at 5:30 AM, Jaime Casanova <jaime(at)2ndquadrant(dot)com> wrote:
>>>> Hi,
>>>>
>>>> This patch implements $subject only when ANALYZE and VERBOSE are on.
>>>> I made it that way because for years nobody seemed interested in this
>>>> info (at least no one did it) so i decided that maybe is to much
>>>> information for most people (actually btree indexes are normally very
>>>> fast).
>>>
>>>
> I would have expected the information about index maintenance times to
> be associated with the Insert node, not the plan overall. IIUC, you
> could have more than one such node if, for example, there are
> writeable CTEs involved.
>

i followed how trigger info is showed in explain. I can try to change
it, if that is what most people prefer.

QUERY PLAN
---------------------------------------------------------------------------------------------------------------------
Insert on pgbench_accounts (actual time=0.249..0.249 rows=0 loops=1)
CTE results
-> Insert on pgbench_accounts pgbench_accounts_1 (actual
time=0.152..0.159 rows=1 loops=1)
-> Result (actual time=0.003..0.004 rows=1 loops=1)
-> CTE Scan on results (actual time=0.165..0.174 rows=1 loops=1)
Trigger trg1 on pgbench_accounts: time=0.033 calls=1
Trigger trg1 on pgbench_accounts: time=0.059 calls=1
Total runtime: 0.377 ms
(8 rows)

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Jaime Casanova www.2ndQuadrant.com
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