Postgres logical replication initial sync. Ideally, database servers could work together seamlessly.
This means setting “wal_level” to “logical” in postgresql. Next, you can create a new user with replication privileges by utilizing the following command: CREATE USER 'example_username' REPLICATION LOGIN ENCRYPTED PASSWORD 'example_password'; Sep 5, 2022 · You can use triggers to log DDL commands to a table and replicate the table. Sep 19, 2023 · 0. gmail. The subscriber applies data in the order in which commits were made on the publisher so that transactional Nov 3, 2023 · >> to figure out is whether the data is skipped by initial sync or later >> replication. > > https://www. Apr 3, 2018 · Viewed 1k times. Re: Initial Schema Sync for Logical Replication at 2023-03-24 15:01:17 from Euler Taveira RE: Initial Schema Sync for Logical Replication at 2023-03-24 15:04:01 from Kumar, Sachin Browse pgsql-hackers by date Nov 8, 2023 · Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-03 12:22:42 from hubert depesz lubaczewski; Responses. The option (1) is simpler and faster than option (2 Aug 14, 2020 · 1. In logical replication, the subscriber table may look nothing like the publisher table. it, transform it into a DDL command on subscriber and apply it. CREATE SUBSCRIPTION adds a new logical-replication subscription. Logical replication requires several configuration options to be set. The subscriber applies the data in the same order as the publisher so that transactional consistency is guaranteed. 2. To initialize the database, you can leverage the initdb utility command. I can reproduce it fairly reliably, but I haven't figured out all the details yet and I'm a bit out of ideas, so I'm sharing what I know with the hope someone takes a look and either spots the issue or To begin using logical replication, the initial step is to define the following parameters within the Postgres configuration file, postgresql. Nov 3, 2023 · Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-03 12:20:22 from Tomas Vondra; Responses. Because logical replication is based on a similar architecture as physical streaming replication, the monitoring on a publication node is similar to monitoring of a physical replication primary (see Section 27. In physical replication, each change in the master is streamed through the WAL (write-ahead logging) and applied in the standby/destination server. CREATE / ALTER / DROP a database object (TABLE Jul 12, 2023 · PostgreSQL 16 includes numerous improvements in logical replication designed to enhance performance, bolster data consistency, and advance compatibility. The term logical is used to distinguish it from physical Apr 13, 2017 · When performing full DB replication there are multiple stages: A) full backup - pg_basebackup cloning database from primary to a standby server (standby is not running) B) recovery - standby server starting up (not accepting connections yet) 30. Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-08 12:20:36 from hubert depesz lubaczewski Browse pgsql-bugs by date Nov 8, 2023 · In response to. 2 The query below returns value greater than 0 and I also see several tables stuck in srsubstate 'f', but there are no errors in Kubernets postgres pod log. Then on the publisher database: And on the subscriber database: The above will start the replication process, which synchronizes the initial table contents of the tables users and Aug 10, 2022 · re 1) No, you don't need to do anything. If a published table sets a row filter, a row is replicated only if its data satisfies the row filter expression. Re: long-standing data loss bug in initial sync of logical replication at 2024-07-18 09:55:05 from Nitin Motiani; Responses. I've set up a simple postgres-10 logical replication publication. Set wal_level to logical on publisher. To set up logical replication you’ll need to change. com>) Responses: Re: Initial Schema Sync for Logical Replication List Feb 8, 2024 · If replication was subsequently initiated on the table, pgoutput would transmit NULL instead of the correct default for such a column, causing incorrect replication on the subscriber. Logical Decoding #. I would like to have an update counter whenever data is changed. obtain current LSN from source database; create logical dump of desired objects in source database; restore dump on the target Nov 16, 2023 · I'm using Postgres (13 and 15) logical replication to sync data from two servers. > > Note that pg_stat_replication may be not updated if feedbacks from a subscriber > is disabled. Postgres Pro Enterprise Postgres Pro Standard Cloud Solutions Postgres Extensions. СУБД POSTGRES PRO ENTERPRISE; СУБД POSTGRES PRO ENTERPRISE CERTIFIED; Обсуждение: BUG #18203: Logical Replication initial sync failure 31. DDL--Data Definition Language. ). Re: long-standing data loss bug in initial sync of logical replication at 2024-07-09 14:43:42 from vignesh C Browse pgsql-hackers by date 2 days ago · In response to. Jul 9, 2024 · I'm using Postgres 15. A logical replication subscription can be a standby for synchronous replication (see Section 27. Currently we have the following setup: A Postgresql DB "Master" and global distributed Postgresql Slaves, using Logical Replication for data replication. Re: Initial Schema Sync for Logical Replication at 2023-03-24 15:01:17 from Euler Taveira RE: Initial Schema Sync for Logical Replication at 2023-03-24 15:04:01 from Kumar, Sachin Browse pgsql-hackers by date . To find that out, you can check remote_lsn value in >> pg_replication_origin_status for the origin used in the initial sync >> once the relation reaches the 'ready' state. Physical replication: Bytes of data are sent from the master server 49. This is postgres 10 on Ubuntu 18. I think the latest discussion, and some 30. conf and making sure that “replication” connections are allowed in “pg_hba. Where can I find what are the initial sync errors that the sync_error_count indicate that occurred Nov 18, 2023 · BUG #18203: Logical Replication initial sync failure: Date: November 18, 2023 04:25:52: Msg-id: 18203-df37fe354b626670@postgresql. 04. Postgres logical replication and pglogical⌗ At this point, migrating a Postgres database without downtime of some kind is looking increasingly impossible. Publishers. wal_level = logical And review the Mar 28, 2023 · worker restore the table schemas (and create pg_subscription_rel. ” As per the manual: The schema definitions are not replicated, and the published tables must exist on the subscriber. pg_dump -d <db> -s | psql <db> -h subscriber_host -U rep. The counter can be incremented by 1 even if multiple rows are updated, but it is also ok to be incremented the counter by the number of rows updated (but it seems less efficient to me). If you are not using a backup tool, you can rebuild your instance using the pg_basebackup tool that comes with PostgreSQL. Streaming Replication Protocol #. Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-02 11:24:32 from hubert depesz lubaczewski Browse pgsql-bugs by date Jun 25, 2024 · Action points: 1) Enable LR on the old master aka subscriber aka source DB if not done already. It includes l eader apply workers, parallel apply workers, and table synchronization workers. 49. wal_level = logical. Initial Schema Sync for Logical Replication: Date: June 8, 2023 06:23:13: Msg-id: Mar 17, 2022 · pgsql-bugs mailing list <pgsql-bugs(at)postgresql(dot)org> Subject: Logical replication stops dropping used initial-sync replication slots: Date: 2022-03-17 14:24:26: Logical replication in PostgreSQL 17 and beyond DDL replication Deparsethe command to pass it in a standard format like JSON Replication of DDL commands Initial sync Replication of sequences Synchronization of replication slots to allow failover Upgrade of logical replication nodes Reuse of tablesyncworkers Time-delayed replication Nov 17, 2023 · It seems there's a long-standing data loss issue related to the initial sync of tables in the built-in logical replication (publications etc. max_replication_slots = 1. Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-08 14:02:02 from hubert depesz lubaczewski Browse pgsql-bugs by date Apr 9, 2018 · > How does one monitor the status or progress of an initial sync under > logical replication? For example: > > * I create a publication in database db_pub > * I create a subscription in database db_sub > * In 15 minutes I want to check an see that the initial sync is N% > complete > Nov 6, 2020 · I'm using logical replication on a Postgres 10 DB (Amazon Linux 2) to Aurora Postgres 11 RDS. FYI - changing “wal_level Jul 16, 2017 · Chức Logical Decoding (PostgreSQL 9. Logical Replication. , messages for replicating the CRUD (Create 2 days ago · > As a long-time PostgreSQL user, I've increasingly run into issues with the > 63-byte limit for identifiers, particularly table names. entries) as the first thing. Re: Initial Schema Sync for Logical Replication: Date: June 15, 2023 09:14:05: Msg-id: CAHut+Ptts6pTV3z-_qDoEU8yfQuk7Q7c=cV5v7FXHuhDVN9qFg@mail. I’m going to give a quick sample setup of logical replication so you can review the steps to enable this on your own system. 2. Logical Logical Replication. A publication can be defined on any physical replication primary. Publisher Settings. The default value is 4. Nov 18, 2023 · >> It seems there's a long-standing data loss issue related to the initial >> sync of tables in the built-in logical replication (publications etc. Additional replication slots may be required for the initial data synchronization of pre-existing table data and those will be dropped at the end of data synchronization. 5. Nov 2, 2023 · Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-02 01:17:13 from Kyotaro Horiguchi; Responses. The standby name is by default the subscription name. Shell. This limit, while > historically sufficient, is becoming a significant pain point in modern > database design and usage. Jul 9, 2023 · Postgres comes with two replication strategies. Does anybody have experience with lines like the following on a subscriber: LOG: logical replication table synchronization worker for subscription "compass_subscription", table "search_opinionscitedbyrecapdocument" has started Aug 3, 2020 · DMS is only worthwhile to look into if you need to switch DB technologies completely (such as from Oracle to Postgres). Basic syntax. Once that is done, changes on the publisher are sent to the subscriber as they occur in real time. Nov 2, 2023 · If pg_stat_replication. conf: wal_level = logical shared_preload_libraries = 'pglogical'. Logical replication starts by copying a snapshot of the data on the publisher database. The default value is 2. > Sep 2, 2021 · The primary purpose of the Tablesync Worker is to initialize the replicated table by doing a COPY of all rows of the published table (at the time of the CREATE SUBSCRIPTION). In PostgreSQL 10 and later, logical replication connections are treated by pg_hba. Note: shared_preload_libraries may have multiple comma-separated values. When the instance is available, you can verify that logical replication is turned on, as follows. Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-08 12:20:36 from hubert depesz lubaczewski Responses. g when running on cloud infrastructure where there is a cost implication. We use the term logical in contrast to physical replication, which uses exact block addresses and byte-by-byte replication. A Boolean value of true (or on, yes, 1) tells the backend to go into physical replication walsender mode, wherein a small set of replication commands, shown below, can be issued instead of SQL statements. Architecture. Jul 9, 2024 · Re: long-standing data loss bug in initial sync of logical replication at 2024-07-01 05:20:52 from vignesh C; Responses. Feb 24, 2024 · The logical replication in PostgreSQL follows the steps given below: Step 1: A snapshot of the publishing database is copied to the subscriber. e. Re: long-standing data loss bug in initial sync of logical replication at 2024-06-24 14:36:04 from Tomas Vondra Browse pgsql-hackers by date 5 days ago · Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> Subject: Re: long-standing data loss bug in initial sync of logical replication: Date: 2024-07-15 19:18:19: Message-ID: Aug 11, 2022 · Step 1: Initialize the Database. I am wondering if it possible to start replication from given LSN? The desired work flow will be. Another point we might need to consider. select sync_error_count from pg_stat_subscription_stats. conf. conf” set up to indicate that this instance is a replica. conf as regular connections to the provider database. This parameter controls the amount of parallelism of the initial data copy during the subscription initialization or when new tables are added. The initial table synchronization, however, is implemented like a COPY command and thus fires both row and statement triggers for INSERT. To do this, first you need to shut down your PostgreSQL replica instance. 4 ("Logical replication table sync worker start times", Nov 30, 2021 · Postgres logical replication initial synchronization is very slow process, especially if original database is quite big. 31. Logical decoding is the process of extracting all persistent changes to a database's tables into a coherent, easy to understand format which can be interpreted without detailed knowledge of the database's internal state. To do this, the streaming replication interface (see Section 49. 0. e. Most options are relevant only on one side of the replication. pg_subscription_rel entries need to be done in the same transaction. See PostgreSQL CREATE PUBLICATION / SUBSCRIPTION. Logical replication is one of these techniques. Quick Setup #. 4 and PG 11 using pglogical extension. Caveats. Sep 1, 2023 · PostgreSQL, known for its powerful features and robustness, offers various replication methods to ensure high availability, data consistency, and near-zero-downtime upgrades. 8). However, max_replication_slots is used on both the publisher and the subscriber, but it has a different meaning for each. 6, logical replication connections are managed using the replication keyword in pg_hba. com Whole thread Raw: In response to: Re: Initial Schema Sync for Logical Replication (Masahiko Sawada <sawada. The master is read/write, the slaves are read-only. Up until PostgreSQL 9. Fix failure of logical replication's initial sync for a table with no columns (Vignesh C) This case generated an improperly-formatted COPY command. I have setup logical replication on postgresql 13 and it is working. In this blog, we cover the importance and drawbacks of logical replication, EDB's contributions to this technology, and the intriguing improvements made in PostgreSQL 16. com> Latest attachment (alter_pub_for_schema. Initial Snapshot. This has been discussed before. the subscriber; 2) generate a DDL representation (JSON, for example) on the publisher, stream. A user might choose to use row filters for behavioral, security or performance reasons. Monitoring #. com>) List: pgsql-bugs Jun 10, 2024 · max_logical_replication_workers: Specifies maximum number of workers to replicate table data between publisher and subscriber. Step 1 : Consider pgserver_94 to be the source server with a database : percona_94 running on PostgreSQL 9. 9. In the Amazon RDS console, choose the primary DB instance of the cluster and choose Reboot from the Actions menu. Reboot the writer instance of your Aurora PostgreSQL DB cluster so that your changes takes effect. Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-09 19:14:46 from Tomas Vondra Logical replication is a method of replicating data objects and their changes, based upon their replication identity (usually a primary key). I connected to the database. This allows a set of tables to be partially replicated. > > :(> Yeah :-(> >> Overall, this looks, walks and quacks like a cache invalidation issue, >> likely a missing invalidation somewhere in the ALTER PUBLICATION code. I copied over the schema from publisher to subscriber. You can prevent the initial copy if you wanted to, by using with (copy_data = false) when creating the subscription. In the context of PostgreSQL, logical Jun 24, 2024 · Re: long-standing data loss bug in initial sync of logical replication at 2023-11-19 02:18:30 from Andres Freund; Responses. patch) at 2024-07-11 12:49:36 from Nitin Motiani <nitinmotiani at google. conf” and “recovery. PostgreSQL supports both mechanisms concurrently, see Chapter 26. The initial schema can be copied by hand using pg_dump --schema-only. org Whole thread Raw: Responses: Re: BUG #18203: Logical Replication initial sync failure (vignesh C <vignesh21@gmail. 4) Chức năng Logical Decoding cho phép sử dụng plugin bên ngoài decoding được nội dung WAL thành các câu lệnh SQL. 10. Then the changes on the publisher are sent to the subscriber as they occur in real time. Logical replication workers are taken from the pool defined by max_worker_processes. An example. Pg_replication_stat does not show anything useful during initial sync. The master is high available through virtualization features. Nov 10, 2023 · Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-10 11:44:17 from hubert depesz lubaczewski Browse pgsql-bugs by date From Jan 8, 2024 · long-standing data loss bug in initial sync of logical replication × First at 2023-11-17 14:36:25 by Tomas Vondra <tomas. 4. The monitoring information about subscription is visible in pg_stat_subscription. This can be done by configuring the following settings in your postgresql. Web servers serving static web pages can be combined quite easily by Additional replication slots may be required for the initial data synchronization of pre-existing table data and those will be dropped at the end of data synchronization. com> Latest at 2024-07-11 12:49:36 by Nitin Motiani <nitinmotiani at google. PostgreSQL supports both mechanisms concurrently, see Chapter 27. I can reproduce it fairly reliably, but I haven't figured out all the details yet and I'm a bit out of ideas, so I'm sharing what I know with the hope someone takes a look and either spots the issue or 49. As soon as you create the subscription, Postgres will copy the data. com> Logical replication allows fine-grained control over both data replication and security. 1. security_principal; It's just a table with about 50,000 rows. 1. Mar 22, 2023 · There are 2 approaches for initial DDL synchronization: 1) generate the DDL command on the publisher, stream it and apply it as-is on. I think that using 'pgoutput' but not using CREATE SUBSCRIPTION is a bit suspect. -- create ddl log table CREATE TABLE ddl_log ( id integer PRIMARY KEY, object_tag TEXT, ddl_command TEXT, timestamp TIMESTAMP ); CREATE SEQUENCE ddl_log_seq; -- create function to log ddl events CREATE OR REPLACE FUNCTION log_ddl_changes() RETURNS event_trigger AS $$ BEGIN INSERT INTO ddl_log (id, object_tag, ddl Nov 17, 2023 · It seems there's a long-standing data loss issue related to the initial sync of tables in the built-in logical replication (publications etc. From my understanding once a remote server subscribe to the main server's publication it will receive all operations required in order to keep its table up to date. Database servers can work together to allow a second server to take over quickly if the primary server fails (high availability), or to allow several computers to serve the same data (load balancing). Description. Feb 25, 2024 · Hi, I set up logical replication a few days ago, but it's throwing some weird log lines that have me worried. Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-08 12:20:36 from hubert depesz lubaczewski Browse pgsql-bugs by date The logical replication apply process currently only fires row triggers, not statement triggers. Jul 10, 2024 · From: Nitin Motiani <nitinmotiani(at)google(dot)com> To: vignesh C <vignesh21(at)gmail(dot)com> Cc: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Tomas Vondra 55. Subset of SQL, used for defining and managing the structure of a database. Jul 23, 2018 · Ensure that you have your “postgresql. g. Re: long-standing data loss bug in initial sync of logical replication at 2024-07-18 10:17:26 from Nitin Motiani Nov 3, 2023 · Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-03 12:20:22 from Tomas Vondra; Responses. wal_level = logical By configuring the wal_level to “logical,” you enable the Write-Ahead Logging (WAL) system to capture essential data required for logical replication. There are 256 tables that need replicating and a few are pretty large (millions to 100s of millions of rows) Apr 27, 2024 · Logical replication allows fine-grained control over the data replication, including table-level data replication. To initiate streaming replication, the frontend sends the replication parameter in the startup message. Apr 8, 2022 · Logical replication works by copying/replicating data objects and their changes based on their replication identity. Either query all the existing data, or start replication on an empty table and copy the existing data into that table from someplace else. If you are not using CREATE SUBSCRIPTION, then you will need to handle the initial snapshot for yourself. The user that creates a subscription becomes the owner of the subscription. The subscriber applies data in the order in which commits were made on the publisher so that transactional Jul 7, 2022 · Following the initial data copy, any transactions made on the publisher side are sent to the subscriber. Publication. ALTER SYSTEM SET wal_level = 'logical'; I restarted the database on the publisher. Subscribers. vondra at enterprisedb. A subscription represents a replication connection to the publisher. Logical replication doesn’t support those operations. sent_lsn, the replication may be delayed so that the tuples > are not appeared. 27. In many cases, the data’s replication identity is a primary key. Logical replication: Only SQL commands are processed to create a replication. Ideally, database servers could work together seamlessly. Clients have to send Standby status update (F) (see Oct 4, 2021 · Logical replication of a table typically starts with taking a snapshot of the data on the publisher database and copying that to the subscriber. Create the following extensions. СУБД PostgreSQL для Windows; План разработок Initial Schema Sync for Logical Replication Nov 15, 2022 · The answer to your bolded question is, “You don’t. Postgres Pro supports both mechanisms concurrently, see Chapter 25. Jun 2, 2022 · Keep in mind that skipping a transaction by calling pg_replication_origin_advance is just one of the resolutions that users can choose, users can also change data or permissions on the subscriber to solve the conflict. Apr 4, 2019 · The following sequence of steps demonstrates a high-level procedure to setup replication between PG 9. A publication is a set of changes generated from a table or a group of tables, and might also be described as a change set or replication set. creating tables) and creating. pg_stat_subscription on subscriber has similar infos with replay_lsn. To reduce the amount of time spent in this phase, you can spawn multiple table synchronization workers. However, when I try to subscribe to this publication from a separate database on the local host, the initial synchronization seems Apr 17, 2020 · I have a simple table I'd like to replicate across a number of servers and I'm considering using the logical replication feature. However, during the initial sync at the startup phase, I haven't been able to find any query to check the progress of the inital sync. Currently, there can be only one synchronization worker per table. The subscription name must be distinct from the name of any existing subscription in the current database. replay_lsn is much behind > pg_stat_replication. The Tablesync Workers and Apply Worker are each capable of receiving and handling pending replication protocol messages – e. 1 On the publisher side, create a table and a publication. Mar 2, 2020 · One of the main issues with implementing this feature is that lag during the initial sync/load can be significant and it shouldn’t be used in interpreting the monitoring thresholds going forward 5 days ago · From: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> To: Nitin Motiani <nitinmotiani(at)google(dot)com> Cc: vignesh C <vignesh21(at)gmail(dot)com>, Tomas Vondra Mar 24, 2023 · Re: Initial Schema Sync for Logical Replication at 2023-03-23 16:02:02 from Euler Taveira; Responses. Nov 17, 2023 · From: hubert depesz lubaczewski <depesz(at)depesz(dot)com> To: Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com> Cc: "Hayato Kuroda (Fujitsu)" <kuroda(dot Jun 2, 2023 · Terms. 3 * PostgreSQL logical replication: initial table data synchronization. Quick Setup. Mar 9, 2023 · Once installed, you'll need to configure PostgreSQL to load the extension and use logical replication. 11. 3. Configuration Settings #. In PostgreSQL, logical decoding is implemented by decoding the contents of the write-ahead log 31. To prevent your server logs from growing too large e. You can optionally impose a ceiling on the replication slot size using max_slot_wal_keep_size Jan 24, 2023 · It then describes these components of logical replication: 1. Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-03 03:39:12 from Amit Kapila Browse pgsql-bugs by date Jan 19, 2024 · Switching Postgresql Logical Replication Slave to new Master without re-sync. Logical decoding can be used to build synchronous replication solutions with the same user interface as synchronous replication for streaming replication. 30. Then, you can try to see You would also need to set up at least two parameters at postgresql. First set the configuration options in postgresql. Subsequent schema changes would need to be kept in sync manually. Chức năng này kết hợp với chức năng Replication Slot là nền tảng chính của chức năng Logical Replication trong phiên bản PostgreSQL 10. Logical replication is a method of replicating data objects and their changes, based upon their replication identity (usually a primary key). conf: The other required settings have default values that are sufficient for a basic setup. postgres=# CREATE TABLE tab (id integer); 31. conf” from the new host (also called the “subscriber” in LR context). 2 ). This step is also called the table synchronization phase. The node where a publication is defined is referred to as publisher. ) Mar 24, 2023 · Re: Initial Schema Sync for Logical Replication at 2023-03-23 16:02:02 from Euler Taveira; Responses. Each publication exists in only one database. pg_hba. In PostgreSQL, it gives users fine-grained control over the replicated data and information security. postgresql The database schema and DDL commands are not replicated. Otherwise, we could end up committing either one change. A method of logically replicating data changes from one node ("publisher") to another node ("subscriber"). The replicated data can be reduced by using a row filter. Enter pglogical: pglogical is a “logical replication” tool for Nov 18, 2023 · >> It seems there's a long-standing data loss issue related to the initial >> sync of tables in the built-in logical replication (publications etc. conf has to allow logical replication connections from localhost. In this blog I'll go through the fundamentals of Logical Replication and some use cases. Overview #. CREATE PUBLICATION active_directory_pub FOR TABLE active_directory. (Note, however, that there is no need for the schemas to be absolutely the same on both sides. Using pglogical extension that provides logical streaming replication and more capabilities such as copying the initial schema of the database, support for TRUNCATE, ability to replicate DDL, etc. tables: {postgresql table name}: main_table: {clickhouse table name} buffer_table: {clickhouse buffer table name} # optional, if not specified, insert directly to the main table buffer_row_id: {clickhouse buffer table column name for row id} init_sync_skip: {skip initial copy of the data} init_sync_skip_buffer_table: {if true bypass buffer_table and write directly to the main_table on initial Nov 2, 2023 · Re: Logical replication is missing block of rows when sending initial sync? at 2023-11-02 01:17:13 from Kyotaro Horiguchi; Responses. > Logical replication startup progress. The synchronization workers are taken from the pool defined by max_logical_replication_workers. 3) must be used to stream out data. Postgres has introduced physical (binary) replication starting in PostgreSQL 9. 8. is that the initial schema sync (i. mshk@gmail. nb yt oq gu vz uh lz ld ke hc
