Re: How about to have relnamespace and relrole?
От | Jim Nasby |
---|---|
Тема | Re: How about to have relnamespace and relrole? |
Дата | |
Msg-id | 54F6ADDC.8030201@BlueTreble.com обсуждение исходный текст |
Ответ на | Re: How about to have relnamespace and relrole? (Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>) |
Ответы |
Re: How about to have relnamespace and relrole?
Re: How about to have relnamespace and relrole? |
Список | pgsql-hackers |
On 3/3/15 8:04 PM, Kyotaro HORIGUCHI wrote: >> >Note: The OID alias types don't sctrictly comply the transaction >> > isolation rules so do not use them where exact transaction >> > isolation on the values of these types has a >> > significance. Likewise, since they look as simple constants to >> > planner so you might get slower plans than the queries joining >> > the system tables correnspond to the OID types. Might I suggest: Note: The OID alias types do not completely follow transaction isolation rules. The planner also treats them as simple constants, which may result in sub-optimal planning. -- Jim Nasby, Data Architect, Blue Treble Consulting Data in Trouble? Get it in Treble! http://BlueTreble.com
В списке pgsql-hackers по дате отправления: