Logical Decoding Examples # The following example demonstrates controlling logical decoding using the SQL interface. It's beneficial for upgrading systems with minimal … PostgreSQL поддерживает оба механизма одновременно; см. The database … The replica operates in read-only mode, allowing to scale the database for read-heavy workloads. This guide explores the types of PostgreSQL replication, their benefits, and real-world use cases, followed by a step-by-step setup … In this article, I’m going to walk you through every step, from enabling replication to monitoring and troubleshooting issues. We use the term logical in contrast to physical … Логическая репликация начинается с копирования снимка данных в базе данных публикации. 8). Before … Логическая репликация (Logical Replication). We also … 31. PostgreSQL … 29. (Logical replication … Репликация в PostgreSQL - это процесс синхронизации нескольких копий кластера баз данных на разных серверах. Developed by 2ndQuadrant (now part … A deep dive into how PostgreSQL logical replication works, including WAL, LSNs, streaming protocols, and how replicas stay in sync. Logical … 47. 1. Slots persist independently of the … I'm running two postgresql 11 servers - master and slave (setup with logical replication). &nbsp;pg_replication_slots # The pg_replication_slots view provides a listing of all replication slots that … Примечание Postgres Pro поддерживает логическую репликацию на сервер Postgres Pro Enterprise с серверов разных выпусков: PostgreSQL или Postgres Pro Standard той же … Since version 10, PostgreSQL allows you to use logical replication which, in contrast to physical replication, you can replicate … A deep dive into how PostgreSQL logical replication works, including WAL, LSNs, streaming protocols, and how replicas stay in sync. PostgreSQL logical decoding supports output plugins. In this case, I want to know what has changed under logical replication from this new replica. Two-phase Commit Support for Logical Decoding PostgreSQL provides infrastructure to stream the modifications performed via SQL to external consumers. 4 (Postgres), providing much faster replication than Slony, Bucardo or Londiste, as well as cross … This PostgreSQL replication tutorial will show how to set up PostgreSQL database replication between a primary and replica server to ensure high availability and redundancy of data. The standby … The logical streaming replication protocol builds on the primitives of the physical streaming replication protocol. This means that all messages between a pair of Begin and Commit messages belong to the same transaction. Это … max_logical_replication_workers = 10 # хватило бы и 7, например, чтобы запустить спокойно 2 репликации одновременно. 0 … In response to RE: Improve logical replication usability when tables lack primary keys at 2025-12-17 11:09:30 from Zhijie Hou (Fujitsu) Responses Re: Improve logical … Learn about PostgreSQL Logical Replication with step-by-step guidance, use cases, limitations, and examples. Logical replication uses a publish … 53. Логическая репликация позволяет более детально управлять репликацией данных и аспектами … Logical Replication extension for PostgreSQL 17, 16, 15, 14, 13, 12, 11, 10, 9. Logical replication uses a publish … 31. … Learn how PostgreSQL replication works—covering streaming, logical replication, setup steps, sync vs async modes, and … 31. On the subscriber side, specifies how many replication origins (see Chapter 50) can be tracked … Returns this error: ERROR: logical replication target relation "public. Logical replication uses a publish … Ongoing replication requires careful monitoring and maintenance to ensure data consistency and system performance. &nbsp;Security # The role used for the replication connection must have the REPLICATION attribute (or be a superuser). Logical Replication Logical … PostgreSQL supports both mechanisms concurrently, see Chapter 26. malik@gmail. Whether you’re a DBA, data engineer, or developer, you’ll find this guide practical, easy to follow, and packed with real-world use cases. &nbsp;System Administration Functions # 9. The … A replication slot has an identifier that is unique across all databases in a PostgreSQL cluster. Logical … 31. We use the term logical in … PostgreSQL supports both mechanisms concurrently, see Chapter 26. Для параметра max_replication_slots должно быть задано число не меньше ожидаемого числа … If a publication publishes UPDATE or DELETE operations, the row filter WHERE clause must contain only columns that are covered by the replica identity (see … This is possible because logical replication supports replication between different major versions of PostgreSQL. Each method has its own use … Logical Replication: Allows selective data replication at the table level, allowing the flexibility to replicate only specific tables or rows. 10. Also, wal_level must be set to replica or higher to allow replication slots to be used. 9. Simplify your … Learn about PostgreSQL Logical Replication with step-by-step guidance, use cases, limitations, and examples. Главу 26. &nbsp;Quick Setup First set the configuration options in postgresql. По завершении этой операции изменения на стороне публикации … Начиная с версии PostgreSQL 11, Patroni умеет управлять слотами логической репликации. &nbsp;Restrictions # Logical replication currently has the following restrictions or missing functionality. Logical replication allows replication of data changes on a per-table basis. As one of the cons of using logical replication, sequence data does … 47. 5, 9. This … Setting Up the System Docker Compose Setup To kick off our exploration of PostgreSQL logical replication, we'll start by creating … Logical replication is an advanced feature in PostgreSQL that allows the replication of database changes at a logical level, meaning it … 31. &nbsp;Streaming Replication Protocol # To initiate streaming replication, the frontend sends the replication parameter in the … 29. pgoutput … Explore the bidirectional Postgres logical replication features in PostgreSQL 16, enhancing data synchronization, high availability, and disaster … 31. 20. Learn how to set up PostgreSQL logical replication to sync specific tables in real-time between databases. &nbsp;Logical Replication Message Formats This section describes the detailed format of each logical replication message. The problem I'm facing is that today after weeks of uninterrupted work slave got … The logical streaming replication protocol builds on the primitives of the physical streaming replication protocol. By logical, we mean streaming changes to data without referring to specific physical attributes such as a … Узнайте, как использовать логическую репликацию и логическое декодирование в гибких экземплярах сервера базы данных Azure для PostgreSQL. Она бывает логической и физической A logical replication subscription can be a standby for synchronous replication (see Section 26. Once that is done, changes on the publisher are sent to the subscriber as they occur in real time. 11. Stream row-level changes, set up publishers and subscribers, and manage key components for scaling and … 9. Логическая репликация оперирует записями в таблицах PostgreSQL. Это реализовано с помощью функции Patroni «Permanent replication slots». Note: New Replica would be synched and would contain the same data as other … Nowadays, PostgreSQL allows us to use logical replication which, in contrast to physical replication, you can replicate between … Database replication is a process of copying data from a central server to multiple servers known as replicas. Understand syntax, examples, and practical use cases. 2. These messages are returned either … Vigneshwaran C explained the internals of PostgreSQL Logical Replication during PGConf India - if you were not able to attend, … Процесс применения изменений в базе данных подписчика всегда выполняется со значением session_replication_role равным replica. We also … Logical replication starts by copying a snapshot of the data on the publisher database. conf: wal_level = logical Другие необходимые параметры по умолчанию имеют значения, … PostgreSQL supports both mechanisms concurrently, see Chapter 26. … Replication Sets Replication is defined in terms of groups (sets) of tables, rather than individual tables PostgreSQL supports both mechanisms concurrently, see Chapter 27. Simplify your … Для wal_level должно быть установлено значение logical. Quick Setup Logical replication is a method of replicating data objects and their changes, based upon their replication identity (usually a primary key). PostgreSQL supports both mechanisms concurrently, see Chapter 26. conf: wal_level = logical The other required settings have default values that … Learn the fundamentals of logical replication in PostgreSQL. &nbsp;Logical Replication Message Formats # This section describes the detailed format of each logical replication message. 6, 9. Logical replication is a method of replicating data objects and their changes, based upon their replication identity (usually a primary key). Quick Setup First set the configuration options in postgresql. Logical Replication extension for PostgreSQL 13, 12, 11, 10, 9. transactions" is not a table Is it possible to replicate a regular table to a Declarative … PostgreSQL logical replication constructs a stream of logical data modifications from the WAL. com> wrote: > > One approach could be to use … Can someone suggest the steps to check pgsql replication status and how to identify if the replication is not happening properly? We use streaming replication with pgsql9. … PostgreSQL supports both mechanisms concurrently, see Chapter 26. In response to Re: Logical Replication of sequences at 2025-12-19 11:35:27 from vignesh C Responses Re: Logical Replication of sequences at 2025-12-22 04:50:30 from … This is possible because logical replication supports replication between different major versions of PostgreSQL. &nbsp;High Availability, Load Balancing, and Replication Table of Contents 26. These might be addressed in future releases. Logical replication allows fine-grained control over both data replication and security. To do this, the … In response to Re: Proposal: Conflict log history table for Logical Replication at 2025-12-20 11:20:53 from Dilip Kumar Browse pgsql-hackers by date Discover how PostgreSQL Bi-Directional Logical Replication enables two-way data sync and how ClusterControl simplifies … If you want to use streaming replication, set up authentication on the primary server to allow replication connections from … On Tue, Dec 23, 2025 at 10:55 AM shveta malik <shveta. Logical … Until now, PostgreSQL 10 was the only PostgreSQL release with native logical replication, so there weren’t many opportunities for upgrading in this way. If the … Replication between PostgreSQL 10 and 11 versions Starting from PostgreSQL 10, logical replication is available with the PostgreSQL … 54. &nbsp;Publication # 29. 2 The schema definitions are not replicated, and the published tables must exist on the subscriber. Replica Identity A publication can be defined on any physical replication primary. 4 (Postgres), providing much faster replication than Slony, … Как Patroni управляет слотами логической репликации Начиная с версии PostgreSQL 11, Patroni умеет управлять слотами логической репликации. These messages are either … PostgreSQL replication is a powerful mechanism that ensures data consistency and availability across Tagged with postgres, … The logical replication protocol sends individual transactions one by one. 53. We use the … In response to Re: Logical Replication of sequences at 2025-12-22 05:38:39 from Amit Kapila Browse pgsql-hackers by date Chapter&nbsp;26. … 54. The standby can be on the same computer or a … Re: Improve logical replication usability when tables lack primary keys On Sun, Dec 14, 2025, at 10:57 PM, Chao Li wrote: > I’ve thought this over and discussed it with … In this post we'll explore the basics of logical replication between two Postgres databases as both a user and a developer. Configuration Settings Functions 9. We use the … PostgreSQL supports both mechanisms concurrently, see Chapter 26. 4. The node … Logical decoding can be used to build synchronous replication solutions with the same user interface as synchronous replication for streaming replication. Learn how to … Learn step-by-step how to perform logical replication in PostgreSQL databases using Hostman’s complete guide. conf: wal_level = logical The other required settings have default values that are sufficient for a … Learn everything you need to know about PostgreSQL logical replication, including how it works, its benefits, and when to use it. &nbsp;Restrictions Logical replication currently has the following restrictions or missing functionality. 8. &nbsp;Monitoring # Because logical replication is based on a similar architecture as physical streaming replication, the monitoring on a publication … Logical Replication of DDLs in PostgreSQL 15 PG Documentation: 31. 2. 28. For free! Responses Re: [BUG] Logical replication failure "ERROR: could not map filenode "base/13237/442428" to relation OID" with catalog modifying txns at 2022-07-28 …. Logical replication uses a publish … 29. Server Signaling Functions … 31. Быстрая настройка Сначала установите параметры конфигурации в postgresql. Logical replication allows us to stream logical data changes between two nodes. In this article, I’m going to walk you through every step, from enabling replication to monitoring and troubleshooting issues. The standby name is by … Кроме того, функции управления репликацией pg_replication_slot_advance, pg_logical_slot_get_changes и pg_logical_slot_peek_changes при использовании со … PostgreSQL offers two primary methods of replication: physical replication and logical replication. Whether … Introduction pglogical is a powerful PostgreSQL extension that provides logical streaming replication using a publish/subscribe model. 29. Comparison of Different Solutions … On Thu, Nov 27, 2025 at 12:16:01AM -0500, Bruce Momjian wrote: > On Mon, Nov 24, 2025 at 11:28:22PM -0500, Robert Treat wrote: > > > I took a look through some of the replication slot … I've run into a problem recently during migration of PostgreSQL 11 to PostgreSQL 15 with logical replication. iqjkppg
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