Re: [PROPOSAL] Table Partition
От | Amit Langote |
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Тема | Re: [PROPOSAL] Table Partition |
Дата | |
Msg-id | 55E3FED2.9000902@lab.ntt.co.jp обсуждение исходный текст |
Ответ на | [PROPOSAL] Table Partition ("My Life" <life.show@qq.com>) |
Ответы |
Re: [PROPOSAL] Table Partition
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Список | pgsql-hackers |
Hello, On 2015-08-30 PM 10:42, My Life wrote: > > For partitioned table's scan action, and JOIN action, we implemented > a plan node named 'PartitionExpand'. the plan node can expand the > partitioned table scan node into a list of partitions according to > the filter and conditions. and it can expand partitioned table JOIN > node into a list of partitions JOIN node wisely. > We implemented a DynamicPrunePartition method, which can expand the > partitioned table's scan node into a list of partition's scan node. > We implemented a DynamicPrunePartitionJoin method, which can expand > the partitioned table's JOIN node into a list of partition's JOIN node. > These expand action happend in ExecInitPartitionExpand function, when > initialize the executor. and all these action implemented based on the > partition catalog. > In your design, can index scan be used for individual partition? If yes, can you share how it is handled? Thanks, Amit
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