Re: Storage Model for Partitioning
От | Pavel Stehule |
---|---|
Тема | Re: Storage Model for Partitioning |
Дата | |
Msg-id | 162867790801110259v7fc706f5l6966815df380f921@mail.gmail.com обсуждение исходный текст |
Ответ на | Storage Model for Partitioning (Simon Riggs <simon@2ndquadrant.com>) |
Список | pgsql-hackers |
> > 3. Partitions are RelFileNodes, but not Tables > > We allow a table to have multiple RelFileNodes, when explicitly declared > that way. > > This means we have to change > - DDL changes to allow TABLE level changes to apply to all RelFileNodes, > while PARTITION level changes to apply to only one RelFileNode > - indexes, so they can refer to more than one partition > - share locking in the executor > - changes to allow synchronous scans and buffer recycling > > There *are* other changes not mentioned here that are required for > partitioning, which although complex are less doubtful. > It can be used for global temporary tables with some modification table defines structure and partitions defines contents for sessions. Regards Pavel Stehule > Simon Riggs > 2ndQuadrant http://www.2ndQuadrant.com > > > ---------------------------(end of broadcast)--------------------------- > TIP 7: You can help support the PostgreSQL project by donating at > > http://www.postgresql.org/about/donate >
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