EXPLAIN and nfiltered, take two

Поиск
Список
Период
Сортировка
От Marko Tiikkaja
Тема EXPLAIN and nfiltered, take two
Дата
Msg-id 4E68B108.1090907@2ndquadrant.com
обсуждение исходный текст
Ответы Re: EXPLAIN and nfiltered, take two
Список pgsql-hackers
Hi,

Here's a patch for $SUBJECT based on the feedback here:
http://archives.postgresql.org/message-id/9053.1295888538@sss.pgh.pa.us

I intentionally decided to omit the information for Join Filter, since
the information can already be deduced from EXPLAIN ANALYZE output, and
for Left Joins and Anti Joins "Rows Removed by Join Filter" didn't
really make much sense.

The "Rows Removed by .." information is always shown by default (when
there is a Filter or Recheck Cond, of course), and I didn't feel like it
was worth it to add a new option for EXPLAIN to turn that information off.

As for documentation..  I'm really at a loss here.  I tried numerous
different things for doc/src/sgml/perform.sgml, but I didn't feel like
any of them added anything.  The EXPLAIN ANALYZE output seems quite
self-explanatory after all.

Attached are also the tests I used, and an example output.


--
Marko Tiikkaja                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

Вложения

В списке pgsql-hackers по дате отправления:

Предыдущее
От: Simon Riggs
Дата:
Сообщение: Re: Back branch update releases this week; beta postponed
Следующее
От: Marti Raudsepp
Дата:
Сообщение: Re: [PATCH] Don't truncate integer part in to_char for 'FM99.'