pgsql: Teach choose_bitmap_and() to actually be choosy --- that is, try

Поиск
Список
Период
Сортировка
От tgl@svr1.postgresql.org (Tom Lane)
Тема pgsql: Teach choose_bitmap_and() to actually be choosy --- that is, try
Дата
Msg-id 20050423015734.780BF535A3@svr1.postgresql.org
обсуждение исходный текст
Список pgsql-committers
Дерево обсуждения 
Log Message:
-----------
Teach choose_bitmap_and() to actually be choosy --- that is, try to
make some estimate of which available indexes to AND together, rather
than blindly taking 'em all.  This could probably stand further
improvement, but it seems to do OK in simple tests.

Modified Files:
--------------
    pgsql/src/backend/optimizer/path:
        indxpath.c (r1.176 -> r1.177)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/path/indxpath.c.diff?r1=1.176&r2=1.177)

В списке pgsql-committers по дате отправления:

Предыдущее
От: tgl@svr1.postgresql.org (Tom Lane)
Дата:
Сообщение: pgsql: Fix bogus EXPLAIN display of rowcount estimates for BitmapAnd and
Следующее
От: jwp@pgfoundry.org (James William Pye)
Дата:
Сообщение: python - be: Make setup.py import friendly.