大多数人都知道Streaming Replication已经成为PostgreSQL的一部分,并且通常用于高可用性和读写分离,流复制是基于WAL日志的物理复制,适用于整个数据库实例的复制,并且备库是只读的。 Logical Replication属于逻辑复制,适用于数据库实例的部分(单个数据库或者某些表)的复制,目前只支持表复制。 最大的不同就是可以向下游节点...
Logical Replication是PostgreSQL10.0引入的内置新特性,而pglogical则是一个插件。PG10版本之前可以使用该插件进行逻辑复制,通过持续发展,pglogical的所有特性都集成到了Logical Replication中。换句话说,pglogical插件变成了Logical Replication。Logical Replication最基本的优势在于不用安装任何插件,安装插件受限的环境中,可以推荐...
大多数人都知道Streaming Replication已经成为PostgreSQL的一部分,并且通常用于高可用性和读写分离,流复制是基于WAL日志的物理复制,适用于整个数据库实例的复制,并且备库是只读的。 Logical Replication属于逻辑复制,适用于数据库实例的部分(单个数据库或者某些表)的复制,目前只支持表复制。 最大的不同就是可以向下游节点...
Logical Replication是PostgreSQL10.0引入的内置新特性,而pglogical则是一个插件。PG10版本之前可以使用该插件进行逻辑复制,通过持续发展,pglogical的所有特性都集成到了Logical Replication中。换句话说,pglogical插件变成了Logical Replication。Logical Replication最基本的优势在于不用安装任何插件,安装插件受限的环境中,可以推荐...
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PostgreSQL Logical Replication: A Guide to Data Sync PostgreSQL's logical replication allows you to selectively replicate data across PostgreSQL databases. Unlike physical replication, which replicates the entire data cluster, logical replication lets you replicate specific tables or changes to rows, offeri...
postgres=# SELECT * FROM pg_replication_slots;(0 rows)复制代码 postgres=# \x Expanded display ...
Also ensurepg_hba.confis updated for the replication user to connect. In the destinaton server’spostgresql.conf, setmax_replication_slots = 10,max_logical_replication_workers = 4andmax_sync_workers_per_subscription = 2. We had to compile the binaries from the source tarballavailable here. ...
Azure Database for PostgreSQL flexible server supports the following logical data extraction and replication methodologies:Logical replication Using PostgreSQL native logical replication to replicate data objects. Logical replication allows fine-grained control over the data replication, including table-level ...
When you need to upgrade PostgreSQL, there are a variety of approaches that you can use. To avoid application downtime, then not all of the options to upgrade postgres are suitable. When avoiding downtime is essential, then you might consider using replication as a means of upgrade, and dep...