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PostgreSQL 18: part 3 or CommitFest 2024-11
PostgreSQL 18 – Add SQL function array_reverse() (Hubert ʻdepeszʼ Lubaczewski) Functions min and max for the type bytea commit: 2d24fd942 The functions min and max are now implemented for the bytea data type. WITH
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PostgreSQL 18: part 2 or CommitFest 2024-09
backups Conflict detection and logging in logical replication commit: 9758174e2 , edcb71258 , 640178c92 , 6c2b5edec The data on a subscriber can be changed independently from the publisher. The publisher has no way of knowing about these changes
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PostgreSQL 17: part 5 or CommitFest 2024-03
databases reindexdb: --jobs and --index at the same time psql: new implementation of FETCH_COUNT pg_dump --exclude-extension Backup and restore large objects New features of the MERGE command commit: 5f2e179b , 0294df2f , c649fa24
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PostgreSQL 17: part 4 or CommitFest 2024-01
backups of large databases take up a lot of space, take a long time to create, and create unwanted load on the system. PostgreSQL
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PostgreSQL 17: part 2 or CommitFest 2023-09
database=demo application_name=psql Previously, only the second line was recorded for the trust method. Note that the SYSTEM_USER function still returns NULL for such connections. See also: Waiting for PostgreSQL
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PostgreSQL 17: part 1 or CommitFest 2023-07
database or the \list command in psql from now on. Documentation: links to previously hidden HTML elements visible in the web interface commit: e2922702 Some HTML documentation pages contain anchors for sections or terms
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PostgreSQL 16: part 5 or CommitFest 2023-03
backup successfully verified libpq: balancing connections commit: 7f5b1981 The ability to specify multiple PostgreSQL instances during connection is not new. You can list multiple replicas under the host , hostaddr and port parameters in the connection
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PostgreSQL 16: part 4 or CommitFest 2023-01
backup tasks are performed by regular, non-superuser roles. PostgreSQL 16 provides a way to secure connection slots for these tasks in the form of a new parameter reserved_connections (0 by default
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PostgreSQL 16: part 3 or CommitFest 2022-11
backup, walsender connects to an instance, but not to a specific database. When you create a logical replication subscription, however, the publisher creates a logical replication slot, and walsender connects to the database where
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Trying to gain peace of mind by using constraints in PostgreSQL
PostgreSQL . “Just a dumb storage” - is it enough? In the recent few years, software developers more and more often state that their database is just a “dumb storage without any logic
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Battles in the ZFS Field
Postgres Pro Enterprise, we have a database-level data compression feature. However, such radical changes didn’t look good to the customer. Their IT team had reasons for using ZFS so they decided
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High availability and disaster recovery (HA/DR) for Postgres databases
large, critical ones, mainly because they find Postgres a very robust database. And that is the time when business teams come into play with various SLAs. Most customers classify their business applications from
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WAL in PostgreSQL: 4. Setup and Tuning
large (for example, records for several days), that is, the recovery period will span many checkpoints rather than one. So, it is clear that the minimum logging level is insufficient — if an operation
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WAL in PostgreSQL: 3. Checkpoint
large. Therefore, all pages that are currently dirty are marked in the buffer cache with a special flag in the headers. And then the checkpointer gradually walks through all the buffers and flushes those flagged
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WAL in PostgreSQL: 1. Buffer Cache
backup copy can help if data on disk are affected). In general, it is possible to organize input/output in such a way that data on disk are always consistent, but this is complicated