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摘要: http://www.postgresql.org/docs/9.3/static/functions-admin.htmlGeneric File Access Functions:普通文件的访问方法:digoal=# select pg_ls_dir('.'); pg_ls_dir ... 阅读全文
posted @ 2014-05-30 10:34 bielidefeng 阅读(181) 评论(0) 推荐(0)
摘要: http://blog.163.com/digoal@126/blog/static/163877040201111694355822/http://blog.163.com/digoal@126/blog/static/1638770402012520105855757/游标使用注意点:http:... 阅读全文
posted @ 2014-05-30 10:34 bielidefeng 阅读(302) 评论(0) 推荐(0)
摘要: 继承:http://www.postgresql.org/docs/9.3/static/ddl-inherit.html分区表:http://www.postgresql.org/docs/9.3/static/ddl-partitioning.html分区表需要和trigger一起使用才可。CR... 阅读全文
posted @ 2014-05-30 10:34 bielidefeng 阅读(93) 评论(0) 推荐(0)
摘要: Postgres-XC:http://blog.csdn.net/huguangshanse00/article/details/9636621http://blog.163.com/digoal@126/blog/static/1638770402013332335933/http://blog.... 阅读全文
posted @ 2014-05-30 10:34 bielidefeng 阅读(127) 评论(0) 推荐(0)
摘要: 全文检索:http://www.postgresql.org/docs/9.3/interactive/textsearch.htmlpostgres 切词:http://blog.163.com/digoal@126/blog/static/163877040201422410175698/ts_... 阅读全文
posted @ 2014-05-30 10:34 bielidefeng 阅读(208) 评论(0) 推荐(0)
摘要: http://my.oschina.net/Kenyon/blog/108850update tuple时会新增一个tuple然后将其隐藏。delete tuple时会隐藏tuple。postgres=# truncate table mmpostgres-# ;TRUNCATE TABLEpost... 阅读全文
posted @ 2014-05-30 10:33 bielidefeng 阅读(198) 评论(0) 推荐(0)
摘要: bgwriter:http://book.51cto.com/art/201201/313208.htmautovacuum:http://book.51cto.com/art/201201/313211.htmhttp://www.postgresql.org/docs/9.2/static/ro... 阅读全文
posted @ 2014-05-30 10:33 bielidefeng 阅读(84) 评论(0) 推荐(0)
摘要: http://blog.163.com/digoal@126/blog/static/1638770402013527920474/create extension pgstattuple;create extension pg_freespacemap;查看表文件路径 select * from ... 阅读全文
posted @ 2014-05-30 10:33 bielidefeng 阅读(111) 评论(0) 推荐(0)
摘要: page:是对block的描述,该如何存储8K数据。以下是Page的结构:http://blog.chinaunix.net/uid-24774106-id-3764606.html查看page:http://www.postgresql.org/docs/9.2/static/pageinspec... 阅读全文
posted @ 2014-05-30 10:33 bielidefeng 阅读(84) 评论(0) 推荐(0)
摘要: checkpoint参数描述:checkpoint的时候会将所有的脏数据都flush到磁盘上checkpoint_timeout:两次checkpoint间隔时长checkpoint_segments:两次checkpoint间隔最大的xlog日志文件数量(指的是pg_xlog下的文件:000000... 阅读全文
posted @ 2014-05-30 10:33 bielidefeng 阅读(588) 评论(0) 推荐(0)
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