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201710/20171017_01.md

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106. Greenplum, postgresql , 加入roaringbitmap,同时支持 多阶段并行聚合函数。
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107. PostgreSQL ,在创建分区表索引时,支持每个分区并行创建。
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108. PostgreSQL , paralle append + 外部表 + pushdown,可以实现sharding 架构下的并发计算。(例如求SUM,AVG,COUNG,MIN,MAX等,不过针对外部表的parallel append内核层面还没有支持好,需要CUSTOM SCAN)
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201802/20180204_03.md

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201802/readme.md

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### 文章列表
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##### 20180204_03.md [《PostgreSQL 11 preview - Parallel Append (多表并行计算) sharding架构并行计算核心功能之一》](20180204_03.md)
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##### 20180204_02.md [《PostgreSQL 11 preview - 新功能, 分区表全局索引管理》](20180204_02.md)
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##### 20180204_01.md [《PostgreSQL 11 preview - 并行排序、并行索引 (性能线性暴增) 单实例100亿TOP-K仅40秒》](20180204_01.md)
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##### 20180202_02.md [《PostgreSQL 11 preview - 分区表智能并行JOIN (已类似MPP架构,性能暴增)》](20180202_02.md)

README.md

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### 未归类文档如下
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##### 201802/20180204_03.md [《PostgreSQL 11 preview - Parallel Append (多表并行计算) sharding架构并行计算核心功能之一》](201802/20180204_03.md)
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##### 201802/20180204_02.md [《PostgreSQL 11 preview - 新功能, 分区表全局索引管理》](201802/20180204_02.md)
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##### 201802/20180204_01.md [《PostgreSQL 11 preview - 并行排序、并行索引 (性能线性暴增) 单实例100亿TOP-K仅40秒》](201802/20180204_01.md)
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##### 201802/20180202_02.md [《PostgreSQL 11 preview - 分区表智能并行JOIN (已类似MPP架构,性能暴增)》](201802/20180202_02.md)

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