postgres 10 to 11 breaking changes

The database schema and DDL commands are not replicated. In the extended query protocol, make statement_timeout apply to each Execute message separately, not to all commands before Sync (Tatsuo Ishii, Andres Freund), Remove the relhaspkey column from system catalog pg_class (Peter Eisentraut). This ensures proper handling of newlines. That's just cosmetic for our purposes, as we continue to select the fat mode in pre-v13 branches. pg_upgrade accepts the following command-line arguments: the old PostgreSQL executable directory; environment variable PGBINOLD, the new PostgreSQL executable directory; default is the directory where pg_upgrade resides; environment variable PGBINNEW, check clusters only, don't change any data, the old database cluster configuration directory; environment variable PGDATAOLD, the new database cluster configuration directory; environment variable PGDATANEW, number of simultaneous processes or threads to use, use hard links instead of copying files to the new cluster. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Previously, CREATE DATABASE would be emitted without these specifications if the database locale and encoding matched the old cluster's defaults. Specifically, triggers.action_order, triggers.action_reference_old_table, and triggers.action_reference_new_table are now populated, where before they were always null. Below you will find a detailed account of the changes between PostgreSQL 11 and the previous major release. risk of data lose when a backup does not exist or cannot be replayed. Specifically, the syntax :{?variable_name} allows a variable's existence to be tested in an \if statement. Use efficient file cloning (also known as reflinks on some systems) instead of copying files to the new cluster. pg_upgrade does its best to make sure the old and new clusters are binary-compatible, e.g., by checking for compatible compile-time settings, including 32/64-bit binaries. If your file system supports file system snapshots or copy-on-write file copies, you can use that to make a backup of the old cluster and tablespaces, though the snapshot and copies must be created simultaneously or while the database server is down. This is where the incompatibilities to the previous release are enumerated. The most intuitive upgrade way you can think of is to generate a replica in a new version and perform a failover of the application into it. This catalog contains the state for each replicated relation in each subscription. You have to read through all of these sections for all of the base releases between 8.x and 13. PostgreSQL 15.2, 14.7, 13.10, 12.14, and 11.19 Released, D.3. There appear to be no ill effects from omitting the call, so do that. Add DO CONTINUE option to ecpg's WHENEVER statement (Vinayak Pokale). Worse, the reconnection might succeed but not be encrypted as intended, or be vulnerable to man-in-the-middle attacks that the intended connection parameters would have prevented. Prevent to_number() from consuming characters when the template separator does not match (Oliver Ford). (--checksum is necessary because rsync only has file modification-time granularity of one second.) What positional accuracy (ie, arc seconds) is necessary to view Saturn, Uranus, beyond? Consider syntactic form when disambiguating function versus column references (Tom Lane). This rare problem would manifest in later apparent wraparound or could not access status of transaction errors. Previously, partition elimination only happened at planning time, meaning many joins and prepared queries could not use partition elimination. Is there any known 80-bit collision attack? pg_upgrade uses this fact to perform rapid upgrades by creating new system tables and simply reusing the old user data files. pg_upgrade will connect to the old and new servers several times, so you might want to set authentication to peer in pg_hba.conf or use a ~/.pgpass file (see Section34.16). The pgsql-committers email list records all source code changes as well. PostgreSQL 11: Make the computation of pg_class.reltuples by VACUUM consistent with its computation by ANALYZE (Tomas Vondra), Update to use perltidy version 20170521 (Tom Lane, Peter Eisentraut), Allow extension pg_prewarm to restore the previous shared buffer contents on startup (Mithun Cy, Robert Haas). If you see anything in the documentation that is not correct, does not match Remove WITH clause in CREATE FUNCTION (Michael Paquier). If you are running Leap 15.2, use PostgreSQL 12. Show memory usage in output from log_statement_stats, log_parser_stats, log_planner_stats, and log_executor_stats (Justin Pryzby, Peter Eisentraut), Add column pg_stat_activity.backend_type to show the type of a background worker (Peter Eisentraut), Make log_autovacuum_min_duration log skipped tables that are concurrently being dropped (Nathan Bossart), Add information_schema columns related to table constraints and triggers (Peter Eisentraut). Use GRANT/REVOKE to control access to lo_import() and lo_export() (Michael Paquier, Tom Lane). Keeping version history of functions in PostgreSQL. please use This is another good reason to upgrade early: the pain is much smaller and it's usually much less work. Add prefix-match operator text ^@ text, which is supported by SP-GiST (Ildus Kurbangaliev). If you want to upgrade to the latest SUSE Managerversion, you must be using PostgreSQL version12 or13, depending on the underlying operating system: If you are running SLES 15 SP3, use PostgreSQL 13. For Windows users, you must be logged into an administrative account, and then start a shell as the postgres user and set the proper path: and then run pg_upgrade with quoted directories, e.g. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I started with 9.1. Embedded hyperlinks in a thesis or research paper. Allow foreign keys on partitioned tables (lvaro Herrera), Allow FOR EACH ROW triggers on partitioned tables (lvaro Herrera). Correctly handle relative path expressions in xmltable(), xpath(), and other XML-handling functions (Markus Winand). Worse, the connection might succeed but not be encrypted as intended, or be vulnerable to man-in-the-middle attacks that the intended connection parameters would have prevented. The file names still use an sgml extension for compatibility with back branches. This documentation is for an unsupported version of PostgreSQL. Each script should be run using: The scripts can be run in any order and can be deleted once they have been run. These parameters will be useful if we want to add a new replication slave or for using PITR backups. If you see anything in the documentation that is not correct, does not match Is there such a thing as aspiration harmony? But there is no tool that will show you those things. The graphical installers all use version-specific installation directories. The new pg_dump, pg_dumpall, and pg_restore option is --no-comments. (They are usually small.) pg_upgrade (formerly called pg_migrator) allows data stored in PostgreSQL data files to be upgraded to a later PostgreSQL major version without the data dump/restore typically required for major version upgrades, e.g., from 9.5.8 to 9.6.4 or from 10.7 to 11.2. To try pg_upgrade again, you will need to modify the old cluster so the pg_upgrade schema restore succeeds. The default partition will store rows that don't match any of the other defined partitions, and is searched accordingly. Several existing contrib modules that define data types have been adjusted to install relevant files. This, of course, opens a new door for upgrading strategies. As side note: are you aware that before Postgres 10, the version numbering was a bit different? If the old cluster used these, shared object files matching the new server binary must be installed in the new cluster, usually via operating system commands. Previously, the most common values (MCVs) were identified based on their frequency compared to all column values. the old PostgreSQL executable directory; environment variable PGBINOLD. Save any configuration files from the old standbys' configuration directories you need to keep, e.g., postgresql.conf (and any files included by it), postgresql.auto.conf, pg_hba.conf, because these will be overwritten or removed in the next step. Subscribers pull data from the publications they subscribe to. Previously, the session owner had to be a superuser to allow such access; now the view owner is checked instead. Previously, tab completion queries could fail against older servers. As the schema is not replicated, we must take a backup in PostgreSQL 10 and restore it in our PostgreSQL 11. Sure, that's a lot of changes, but that's to be expected for such a jump. Files that were not linked on the primary are copied from the primary to the standby. PostgreSQL13 requires smdba version 1.7.6 or later. PostgreSQL 9.5. Previously, only superusers could use these functions, and that is still the default behavior. This is where the incompatibilities to the previous release are enumerated. Sequence data is not replicated. In the case of partitions, you can replicate a partition hierarchy one-to-one, but you cannot currently replicate to a differently partitioned setup. Copyright 1996-2023 The PostgreSQL Global Development Group, PostgreSQL 15.2, 14.7, 13.10, 12.14, and 11.19 Released. It is important that any external modules are also binary compatible, though this cannot be checked by pg_upgrade. Support domains over composite types (Tom Lane). You can also delete the old installation directories (e.g., bin, share). Add support for large pages on Windows (Takayuki Tsunakawa, Thomas Munro). If the partition key is part of the index's column set, a partitioned index may be declared UNIQUE. xcolor: How to get the complementary color. This release closes one security vulnerability and fixes over 50 bugs reported over the last three months. Each PostgreSQL version has a section Migration to Version xy section in the base release part of appendix E of the documentation. If the --link option was not used, the old cluster was unmodified; it can be restarted. The above will start the replication process, which synchronizes the initial table contents of the tables in the publication and then starts replicating incremental changes to those tables. Improve optimizer's row count estimates for EXISTS and NOT EXISTS queries (Tom Lane), Make the optimizer account for evaluation costs and selectivity of HAVING clauses (Tom Lane), Add Just-in-Time (JIT) compilation of some parts of query plans to improve execution speed (Andres Freund). Without a verified database backup, you must not initiate a fast upgrade. Before you begin the upgrade, prepare your existing SUSE Manager Server and create a database backup. A regular upgrade will copy the database files instead of creating hard links between the files. If a CREATE TABLE command uses both LIKE and traditional inheritance, column references in CHECK constraints and expression indexes that came from a LIKE parent table tended to get mis-numbered, resulting in wrong answers and/or bizarre error messages. In the publisher, we must create the user with which our subscriber will connect: The role used for the replication connection must have the REPLICATION attribute. Once we have our schema in PostgreSQL 11, we create the subscription, replacing the values of host, dbname, user, and password with those that correspond to our environment. If you want to use link mode and you do not want your old cluster to be modified when the new cluster is started, consider using the clone mode. Allow access to file system functions to be controlled by GRANT/REVOKE permissions, rather than superuser checks (Stephen Frost). The release notes do not contain changes that affect only a few users or changes that are internal and therefore not user-visible. This is accomplished with the new initdb option --allow-group-access. So, here is where PostgreSQL 10 becomes a game changer. The new ALTER/DROP ROUTINE commands allow altering/dropping of all routine-like objects, including procedures, functions, and aggregates. PostgreSQL stores data at /var/lib/pgsql/data/. Add ability to use channel binding when using SCRAM authentication (Michael Paquier). : Once started, pg_upgrade will verify the two clusters are compatible and then do the upgrade. So based on this, lets configure our publisher (in this case our PostgreSQL 10 server) as follows: We must change the user (in our example rep), which will be used for replication, and the IP address 192.168.100.144/32 for the IP that corresponds to our PostgreSQL 11. Improve logging of LDAP errors (Thomas Munro), Add default roles that enable file system access (Stephen Frost). this form If you did not use link mode, do not have or do not want to use rsync, or want an easier solution, skip the instructions in this section and simply recreate the standby servers once pg_upgrade completes and the new primary is running. If you are migrating from version 12: When the upgrade has successfully completed, you can safely delete the old database directory and reclaim lost disk space.
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