重启数据仓库 查看数据仓库详情 扩容数据仓库 更改数据仓库密码 续费 删除数据仓库 查看操作⽇志 查看监控 ⽬录 Greenplum数据仓库 UDW Copyright © 2012-2021 UCloud 优刻得 2/206 50 50 71 73 73 73 74 74 74 74 75 76 76 79 81 82 90 92 101 102 8、索引 9、 ANALYZE/VACUUM 10、常⽤SQL⼤全 12、常⽤SQL命令 13、⽤⼾⾃定义函数 ⽬录 Greenplum数据仓库 UDW Copyright © 2012-2021 UCloud 优刻得 3/206 128 132 132 132 139 139 139 141 142 146 152 152 163 177 177 183 基于UDW实现⽹络流分析 PXF 扩展 扩展 配置 PXF 服务 创建 EXTENSION 读写 HDFS ⽬录 Greenplum数据仓库 UDW Copyright © 2012-2021 UCloud 优刻得 4/206 194 196 198 198 198 200 201 201 202 202 202 203 203 203 203 203

Confidential │ ©2021 VMware, Inc. 1 Confidential │ ©2021 VMware, Inc. Greenplum中文社区 https://cn.greenplum.org 博文 · 资料 · 文档 · 项目 Confidential │ ©2021 VMware, Inc. 3 Confidential │ ©2021 VMware, 理论与实践 陈金豹，VMWare内核工程师 Confidential │ ©2021 VMware, Inc. 目录 Brin Index On Heap AppendOnly Table Brin在AppendOnly Table上的实现 性能测试 5 Confidential │ ©2021 VMware, Inc. Block Range Index 存储数据块中元组字段的最 5] [7, 10] [9, 12] Brin Heap Confidential │ ©2021 VMware, Inc. Brin的优势和劣势 优势： 占用空间小 创建快 劣势： 只有在数据具有一定分布特点时才有用 Confidential │ ©2021 VMware, Inc. Brin的体积 Brin tuple: 20bytes Block Range:

Confidential │ ©2021 VMware, Inc. Greenplum 分布式数 据库内核揭秘 Greenplum内核开发工程师 2022-03-16 李正龙 Confidential │ ©2021 VMware, Inc. Agenda 2 - Greenplum 分布式数据库简介 - Greenplum 集群化概述 - 分布式数据存储与多态存储 - 分布式查询优化器与执行器 分布式查询优化器与执行器 - Greenplum 中文社区 3 Confidential │ ©2021 VMware, Inc. Greenplum 分布式数据库简介 Features Confidential │ ©2021 VMware, Inc. 4 Greenplum 是基于 PostgreSQL 所实现的大规模并行处理(MPP)开源数据平台，具有良好的弹性 和线性拓展能力， OLTP 型业务的混合负载。 Greenplum 分布式数据库简介 5 Confidential │ ©2021 VMware, Inc. Greenplum 集群化概述 Coordinator/Segment, Primary/Mirror Confidential │ ©2021 VMware, Inc. 6 Greenplum 集群化概述 数据库的组成 l Coordinator/Segment

)DISTRIBUTED BY (id) PARTITION BY RANGE (date) ( START (date '2020-01-01') INCLUSIVE END (date '2021-01-01') EXCLUSIVE EVERY (INTERVAL '1 month') ); 也可以为每个分区单独指定名称。例如： =# CREATE TABLE sales '2020-11-01') INCLUSIVE , PARTITION Dec20 START (date '2020-12-01') INCLUSIVE END (date '2021-01-01') EXCLUSIVE ); 注意：由于分区的范围限制是连续的，这种情况下，可以不用为每个分区指定END值， 而只需要为最后一个分区指定即可，这个时候，上一个分区的END值就是下一个分区的 char(1), count int )DISTRIBUTED BY (id) PARTITION BY RANGE (year) ( START (2020) END (2021) EVERY (1), DEFAULT PARTITION extra ); 关于默认分区的更多信息，参见"添加默认分区"相关章节。 定义列表分区表

gp_stat_progress_copy 2018 gp_stat_progress_create_index 2018 gp_stat_progress_vacuum 2019 gp_stat_replication 2021 gp_stat_resqueues 2022 gp_stat_slru 2022 gp_stat_ssl 2023 gp_stat_subscription 2023 gp_stat_sys_indexes measurement_y2021m01 PARTITION OF measurement FOR VALUES FROM ('2021-01-01') TO ('2021-02-01'); CREATE TABLE measurement_y2021m02 PARTITION OF measurement FOR VALUES FROM ('2021-02-01') TO ('2021-03-01'); measurement_y2021m03 PARTITION OF measurement FOR VALUES FROM ('2021-03-01') TO ('2021-04-01'); ... CREATE TABLE measurement_y2021m11 PARTITION OF measurement FOR VALUES FROM ('2021-11-01') TO ('2021-12-01');

Greenplum 白皮书 10 白皮书 | 10 在 2021 年 4 月传来喜报，Greenplum 数据库团队的论文《Greenplum: A Hybrid Database for Transactional and Analytical Workloads》1成功入选 内核版本： Linux host-192-168-1-14 4.19.90-2106.3.0.0095.oe1.aarch64 #1 SMP Wed Jun 23 14:51:58 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux OS 发布版本： NAME="openEuler" VERSION="20.03 (LTS-SP2)" ID="openEuler"

Options 2016 Notes 2019 Examples 2019 See Also 2020 pgbouncer 2020 Synopsis 2021 Description 2021 Options 2021 VMware Tanzu Greenplum 6 Documentation VMware, Inc 118 See Also 2022 pgbouncer removing these test suites from the default set of tests that are run. Release 6.19.0 Release Date: 2021-11-24 VMware Tanzu Greenplum 6.19.0 is a minor release that includes feature changes and resolves This release backports the following Postgres CVE fixes: CVE-2021-23214 Server processes unencrypted bytes from man-in-the-middle. CVE-2021-23222 libpq processes unencrypted bytes from man-in-the-middle

removing these test suites from the default set of tests that are run. Release 6.19.0 Release Date: 2021-11-24 VMware Tanzu Greenplum 6.19.0 is a minor release that includes feature changes and resolves This release backports the following Postgres CVE fixes: CVE-2021-23214 Server processes unencrypted bytes from man-in-the-middle. CVE-2021-23222 libpq processes unencrypted bytes from man-in-the-middle gp_dispatch_keepalives_idle, and gp_dispatch_keepalives_interval. Release 6.18 Release 6.18.1 Release Date: 2021-10-29 VMware Tanzu Greenplum 6.18.1 is a maintenance release that resolves several issues. Resolved

removing these test suites from the default set of tests that are run. Release 6.19.0 Release Date: 2021-11-24 VMware Tanzu Greenplum 6.19.0 is a minor release that includes feature changes and resolves This release backports the following Postgres CVE fixes: CVE-2021-23214 Server processes unencrypted bytes from man-in-the-middle. CVE-2021-23222 libpq processes unencrypted bytes from man-in-the-middle gp_dispatch_keepalives_idle, and gp_dispatch_keepalives_interval. Release 6.18 Release 6.18.1 Release Date: 2021-10-29 VMware Tanzu Greenplum 6.18.1 is a maintenance release that resolves several issues. Resolved

removing these test suites from the default set of tests that are run. Release 6.19.0 Release Date: 2021-11-24 VMware Tanzu Greenplum 6.19.0 is a minor release that includes feature changes and resolves This release backports the following Postgres CVE fixes: CVE-2021-23214 Server processes unencrypted bytes from man-in-the-middle. CVE-2021-23222 libpq processes unencrypted bytes from man-in-the-middle gp_dispatch_keepalives_idle, and gp_dispatch_keepalives_interval. Release 6.18 Release 6.18.1 Release Date: 2021-10-29 VMware Tanzu Greenplum 6.18.1 is a maintenance release that resolves several issues. Resolved