DEV uses/requires PostgreSQL 9.4. This is generally the correct approach: update releases make each major release This feature supports nondeterministic collations that can define case- and accent-agnostic equality comparisons. Shortly after the May 12, 2022 update release, there was a report on the Allow discovery of an LDAP server using DNS SRV records (Thomas Munro). This can be optimized when the table's column constraints can be recognized as disallowing nulls. latest available minor release available for a major version, other bug fixes available in this release, bug reports of index corruption in PostgreSQL 14, using an operator class from a different schema that was created by a different user, an essential part of PostgreSQL maintenance, run the latest release of a major version. This is enabled by setting the environment variable PG_COLOR to always or auto. Allow pg_upgrade to use the file system's cloning feature, if there is one (Peter Eisentraut). You should read through the Each PostgreSQL version has a section "Migration to Version xy" section in the base release part of appendix E of the documentation. Two config files (PostgreSQL.conf and pg_hba.conf) must be have a backup taken as the newer installation will replace the new config file with default configuration parameters and values. The option controlling this is --rows-per-insert. Improve speed in converting strings to int2 or int4 integers (Andres Freund), Allow parallelized queries when in SERIALIZABLE isolation mode (Thomas Munro). This is because of the way that PostgreSQL used to implement replication. The server parameters are ssl_min_protocol_version and ssl_max_protocol_version. This change supports hiding potentially-sensitive statistics data from unprivileged users. Access for the role must be configured in pg_hba.conf and it must have the LOGIN attribute. I suggest making a separate folder, either in C drive or another drive, and execute the pg_upgrade because the problem arises when we run the. The node where a subscription is defined is referred to as the subscriber, and it defines the connection to another database and set of publications (one or more) to which it wants to subscribe. In this blog we made a brief introduction to logical replication, a. Upgrade PostgreSQL 9.X to 12.X in Windows - SQLServerCentral (For user-defined name columns, another possibility is to specify a different collation at table creation time; but that just moves the non-backwards-compatibility to the comparison operators. reproduce the issue. The data directory can also be modified. Since it requires downtime it should be carefully planned and notified. Add the ability to list the contents of temporary directories (Nathan Bossart). Split the pg_statistic_ext catalog into two catalogs, and add the pg_stats_ext view of it (Dean Rasheed, Tomas Vondra). The old value needs to be calculated for the new value. Previously, the database's default collation was used for all statistics. Here is the command: Here, we can modify the parameter accordingly if the data directory and installation directory, which is not the default one. Allow vacuum_cost_delay to specify sub-millisecond delays, by accepting fractional values (Tom Lane), Allow time-based server parameters to use units of microseconds (us) (Tom Lane), Allow fractional input for integer server parameters (Tom Lane).