Column | Type | Value ---+---+--- sequence_name | name | sql_tbl_serial2_a last_value | bigint | 1 start_value | bigint | 1 increment_by | bigint | 1 max_value | bigint | 9223372036854775807 min_value | bigint | 1 cache_value | bigint | 1 log_cnt | bigint | 0 is...
/data/pgsql/bin/pg_dumpall -p 5432 -U postgres -r >/tmp/postgres_8.3_role.bak 60.修改sequence所有者 grant all on sequence名称 to 所有者; 61.修改sequence初始值 Alter SEQUENCE sequencename START value; 62.查看sequence当前值 SELECT currval('sequencename'); 63.查看sequence下一值 SELECT nextv...
数据库集群的逻辑结构 PostgreSQL天然集群,多个集群可以组成集簇,有点类似军队的连、团、旅这样的组织规则。对于我们日常学习使用的单节点则是单个集簇单个集群,自己就是集群。 PostgreSQL如何管理这种集群规则?答案是通过一个无符号4个字节的标识进行管理,一个对象就是集群里的一个数据库。 1.2 数据库对象和对象符号...
Description: change the definition of a sequence generator Syntax: ALTER SEQUENCE [ IF EXISTS ] name [ AS data_type ] [ INCREMENT [ BY ] increment ] [ MINVALUE minvalue | NO MINVALUE ] [ MAXVALUE maxvalue | NO MAXVALUE ] [ START [ WITH ] start ] [ RESTART [ [ WITH ] restart ...
ALTER SEQUENCE 更改序列发生器的定义. 复制 ALTERSEQUENCEname[ INCREMENT [BY] increment ][ MINVALUE minvalue |NOMINVALUE ] [ MAXVALUE maxvalue |NOMAXVALUE ][ RESTART [WITH] start ] [ CACHE cache ] [ [NO] CYCLE ] 1. 2. 3. ALTER TABLE ...
PostgreSQL 是一个基于 POSTGRES 的对象关系数据库管理系统(ORDBMS),版本4.2,由加州大学伯克利分校计算机科学系开发。POSTGRES 开创了许多概念,这些概念在很久以后才在某些商业数据库系统中出现。
#log_rotation_size = 10MB # 日志文件的自动循环将在日志输出这么多之后发生.0-禁用 # These are relevant when logging to syslog:(登录到syslog时,这些都是相关的) #syslog_facility = 'LOCAL0' #syslog_ident = 'postgres' #syslog_sequence_numbers = on #syslog_split_messages = on #:这仅在登录到...
CREATE SEQUENCE upms_log_id_seq START 10; 执行结果如下: postgres=# CREATE SEQUENCE upms_log_id_seq START 10; CREATE SEQUENCE 创建测试表 CREATE TABLE "public"."t_user" ( "id" int8 NOT NULL DEFAULT nextval( 'upms_log_id_seq' :: regclass ), "name" VARCHAR ( 255 ) COLLATE "pg_cat...
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. 上传源码安装文件及解压 [root@centos79 ~]# ls -lh postgresql-14.12.tar.gz -rw-r--r--. 1 root root 28M Aug 1 21:37 postgresql-14.12.tar.gz ...
postgres=# CREATE SEQUENCE upms_log_id_seq START 10; CREATE SEQUENCE 创建测试表 CREATE TABLE "public"."t_user" ( "id" int8 NOT NULL DEFAULT nextval( 'upms_log_id_seq' :: regclass ), "name" VARCHAR ( 255 ) COLLATE "pg_catalog"."default", "phone" VARCHAR ( 255 ) COLLATE "pg_...