CPU/核 内存 用户数据空间 2x2C HDD 4 32GB 2TB HDD 2x18C HDD 36 288GB 18TB HDD ⚫ MPP 全并行执行架构，其单计算节点定位为“计算 组”，一个集群实例由多个计算组组成。 ⚫ 多种规格、满足不同场景需求 -交互式分析 -ETL数据清洗 增强的企业级特性-安全  -数据的备份&恢复  -SQL访问安全审计 增强的企业级特性-高可用 Data 数据集成 按需回流 数据仓库应用 在线数据仓库 数据 查询 数据集成 批量同步 1 3 4 2 云化在线数仓 ： 简化、敏捷、一栈式构筑数据仓库 • 一键实现 十分钟 集群创建部署 • 图形化实例管理及自动监控报警 实例SQL安全审计 实例实时监控 实例配置信息 • 云上多种生态工具配套： DTS数据传输 QuickBI DataV 数据集成 阿里云数据工

the system resources. If you run many servers on a machine this is perhaps what you want, but on dedicated servers you might want to raise this limit. On the other side of the coin, some systems allow individual usually needed for good performance. This parameter can only be set at server start. If you have a dedicated database server with 1GB or more of RAM, a reasonable starting value for shared_buffers is 25% of this to zero disables background writing. (Note that checkpoints, which are managed by a separate, dedicated auxiliary process, are unaffected.) The default value is 100 buffers. This parameter can only be

the system resources. If you run many servers on a machine this is perhaps what you want, but on dedicated servers you might want to raise this limit. On the other side of the coin, some systems allow individual usually needed for good performance. This parameter can only be set at server start. If you have a dedicated database server with 1GB or more of RAM, a reasonable starting value for shared_buffers is 25% of this to zero disables background writing. (Note that checkpoints, which are managed by a separate, dedicated auxiliary process, are unaffected.) The default value is 100 buffers. This parameter can only be

the system resources. If you run many servers on a machine this is perhaps what you want, but on dedicated servers you might want to raise this limit. On the other side of the coin, some systems allow individual usually needed for good performance. This parameter can only be set at server start. If you have a dedicated database server with 1GB or more of RAM, a reasonable starting value for shared_buffers is 25% of this to zero disables background writing. (Note that checkpoints, which are managed by a separate, dedicated auxiliary process, are unaffected.) The default value is 100 buffers. This parameter can only be

the system resources. If you run many servers on a machine this is perhaps what you want, but on dedicated servers you might want to raise this limit. On the other side of the coin, some systems allow individual usually needed for good performance. This parameter can only be set at server start. If you have a dedicated database server with 1GB or more of RAM, a reasonable starting value for shared_buffers is 25% of this to zero disables background writing. (Note that checkpoints, which are managed by a separate, dedicated auxiliary process, are unaffected.) The default value is 100 buffers. This parameter can only be

the system resources. If you run many servers on a machine this is perhaps what you want, but on dedicated servers you might want to raise this limit. On the other side of the coin, some systems allow individual usually needed for good performance. This parameter can only be set at server start. If you have a dedicated database server with 1GB or more of RAM, a reasonable starting value for shared_buffers is 25% of this to zero disables background writing. (Note that checkpoints, which are managed by a separate, dedicated auxiliary process, are unaffected.) The default value is 100 buffers. This parameter can only be

17. Server Setup and Operation many servers on a machine this is perhaps what you want, but on dedicated servers you might want to raise this limit. On the other side of the coin, some systems allow individual usually needed for good performance. This parameter can only be set at server start. If you have a dedicated database server with 1GB or more of RAM, a reasonable starting value for shared_buffers is 25% of this to zero disables background writing. (Note that checkpoints, which are managed by a separate, dedicated auxiliary process, are unaffected.) The default value is 100 buffers. This parameter can only be

17. Server Setup and Operation many servers on a machine this is perhaps what you want, but on dedicated servers you might want to raise this limit. On the other side of the coin, some systems allow individual parameter can only be set at server start. 501 Chapter 18. Server Configuration If you have a dedicated database server with 1GB or more of RAM, a reasonable starting value for shared_buffers is 25% of this to zero disables background writing. (Note that checkpoints, which are managed by a separate, dedicated auxiliary process, are unaffected.) The default value is 100 buffers. This parameter can only be

the system resources. If you run many servers on a machine this is perhaps what you want, but on dedicated servers you might want to raise this limit. On the other side of the coin, some systems allow individual usually needed for good performance. This parameter can only be set at server start. If you have a dedicated database server with 1GB or more of RAM, a reasonable starting value for shared_buffers is 25% of this to zero disables background writing. (Note that checkpoints, which are managed by a separate, dedicated auxiliary process, are unaffected.) The default value is 100 buffers. This parameter can only be

the system resources. If you run many servers on a machine this is perhaps what you want, but on dedicated servers you might want to raise this limit. On the other side of the coin, some systems allow individual usually needed for good performance. This parameter can only be set at server start. If you have a dedicated database server with 1GB or more of RAM, a reasonable starting value for shared_buffers is 25% of what sort of statistics it stores. Only extremely general statistics (such as nullness) are given dedicated columns in pg_statistic. Everything else is stored in “slots”, which are groups of associated columns