db-engines 排行榜上 PG 排名第四名且一直处于上升趋势,在国内也比较火,未来发展趋势不可估量,且很多国产数据库也是基于 PG 的二次开发,很多功能原理相似,学习了解 PG 势在必行,下面我们来使用 yum 安装一个 PostgreSQL 数据库并简单的进行增删改查,方便快捷六步即可完成,特别适合开发测试和运维人员来初步学习和使用。另外
Enable=disable Willing=/usr/share/config/kdm/Xwilling Xaccess=/usr/share/config/kdm/Xaccess 1. 2. 3. 4. 5. 6. 2.2.2 Gnome桌面环境 (a)修改defaults.conf配置文件 cd命令进入/usr/share/gdm/,修改此路径下的defaults.conf配置文件,首先修改[security]下的AllowRoot=false,将其改为:AllowRoot=ture,...
[root@EULER1~]# su-pg1-c"psql -Upostgres -p 5432 -h 192.168.123.60"Passwordforuser postgres:psql(12.5)Type"help"forhelp.postgres=# create tablespace mytbs location'/opt/custome-tablespace';CREATETABLESPACEpostgres=# \db+Listoftablespaces Name|Owner|Location|Access privileges|Options|Size|Descri...
postgres@[local]:5432=#postgres@[local]:5432=#postgres@[local]:5432=#\lList of databases Name | Owner | Encoding | Collate | Ctype | Access privile ges ---+---+---+---+---+--- --- mydb | pguser | UTF8 | en_US.UTF-8 | en_US.UTF-8 | postgres | postgres | UTF8 |...
Service 虚拟 IP 地址段 --enable-admission-plugins:准入控制模块 --authorization-mode:认证授权,启用 RBAC 授权和节点自管理 --enable-bootstrap-token-auth:启用 TLS bootstrap 机制 --token-auth-file:bootstrap token 文件 --service-node-port-range:Service nodeport 类型默认分配端口范围 --kubelet-client-...
Use SSH tunneling: Enable this option. Tunnel host: Your Linode’s IP address. Tinnel port:22. This is the default SSH port. Username: Your SSH username for the Linode instance. Authentication: ChooseIdentity fileif you are using an SSH key, orPasswordfor password-based authentication. ...
already logged* the details of error to the log. */}#endif/* Set up a timeout in case a buggy or malicious client fails to respond* during authentication. Since we're inside a transaction and might do* database access, we have to use the statement_timeout infrastructure. */enable_time...
>remote_host // port->remote_port pg_getnameinfo_all(&port->raddr.addr,remote_host,remote_port) // 设置一个timer,用于startup的超时处理 // 参照"startup流程",startup可能会有authentication过程,故设置超时处理 RegisterTimeout(STARTUP_PACKET_TIMEOUT, StartupPacketTimeoutHandler); enable_timeout_...
create table p (a int) partition by list (a); create table p1 partition of p for values in (1); create table p2 partition of p for values in (2); set enable_partitionwise_join to on;6.3 索引消除重复项 PostgreSQL 13中对索引的重复的项做了优化处理,更节省空间。重复的项只存储一次。
systemctl enable postgresql-11 ## 添加环境变量 把/usr/pgsql-11/bin加入到 /etc/profile系统环境变量里 如: ## PATH export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:$JAVA_HOME/bin:/usr/pgsql-11/bin . /etc/profile ...