postgres 9 to 12 breaking changes - rajayounasmyrtlebeach.com In general it is unsafe to access tables referenced in rebuild scripts until the rebuild scripts have run to completion; doing so could yield incorrect results or poor performance. For more information on backing up, see Backup and Restore. Allow the creation of arrays of domains (Tom Lane). The real-world impact is small, since the failure is unlikely, and if it does happen the worker would just exit and be restarted. Fix to_date(), to_number(), and to_timestamp() to skip a character for each template character (Tom Lane). Before you begin the upgrade, prepare your existing SUSE Manager Server and create a database backup. This provides rapid standby upgrades. 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). For example, \q does not exit when supplied in character strings. Version 11 contains a number of changes that may affect compatibility with previous releases. If the partition key is part of the index's column set, a partitioned index may be declared UNIQUE. The walsender process starts logical decoding of the WAL and loads the standard logical decoding plugin. Build the new PostgreSQL source with configure flags that are compatible with the old cluster. Existing adminpack installs will continue to have access to these functions until they are updated via ALTER EXTENSION UPDATE. A publication is a set of changes generated from a table or a group of tables (also referred to as replication set). Retain WAL data for only a single checkpoint (Simon Riggs). That is, the tables on the publication and on the subscription side must be normal tables, not views, materialized views, partition root tables, or foreign tables. (The community will attempt to avoid such situations.). PostgreSQL built-in streaming replication is what is called physical: it will replicate the changes on a byte-by-byte level, creating an identical copy of the database in another server. Allow background workers to attach to databases that normally disallow connections (Magnus Hagander), Add support for hardware CRC calculations on ARMv8 (Yuqi Gu, Heikki Linnakangas, Thomas Munro), Speed up lookups of built-in functions by OID (Andres Freund). Improve logging of LDAP errors (Thomas Munro), Add default roles that enable file system access (Stephen Frost). Add PGXS support for installing include files (Andrew Gierth). E.10.2. Previously, the 16MB default could only be changed at compile time. Sure, that's a lot of changes, but that's to be expected for such a jump. This will work correctly if all affected tables are part of the same subscription. Also indicate which partitions are themselves partitioned. At present, it is supported on Linux (kernel 4.5 or later) with Btrfs and XFS (on file systems created with reflink support), and on macOS with APFS. ), Fix ecpg library's per-thread initialization logic for Windows (Tom Lane, Alexander Lakhin). Prevent logical replication workers from sending redundant ping requests (Tom Lane), During smart shutdown, don't terminate background processes until all client (foreground) sessions are done (Tom Lane).

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