Re: inserting, index and no index - speed
От | Vivek Khera |
---|---|
Тема | Re: inserting, index and no index - speed |
Дата | |
Msg-id | x78zizlqgq.fsf@yertle.kciLink.com обсуждение исходный текст |
Ответ на | Re: inserting, index and no index - speed (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: Re: inserting, index and no index - speed
|
Список | pgsql-general |
>>>>> "TL" == Tom Lane <tgl@sss.pgh.pa.us> writes: TL> Everything is always a transaction in Postgres. If you don't say TL> begin/end, then there's an implicit begin and end around each individual TL> query. So your first set of tests were paying transaction commit TL> overhead for each insert. This doesn't seem to hold exactly for INSERTs involving sequences as default values. Even if the insert fails for some other constraint, the sequence is incremented. -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Vivek Khera, Ph.D. Khera Communications, Inc. Internet: khera@kciLink.com Rockville, MD +1-240-453-8497 AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/
В списке pgsql-general по дате отправления: