E.20. Postgres Pro Enterprise 12.6.2
Release date: 2021-04-05
E.20.1. Overview
This release is based on Postgres Pro Enterprise 12.6.1 and provides the following changes:
Fixed an issue with an upgrade of Postgres Pro Enterprise 9.6 cluster to the current major version using pg_upgrade. Previously, it could crash when processing the free space map of a very large table.
Fixed the signed integer overflow in ptrack that could occur when ptrack map data in RAM was saved to disk. Previously, for large-size ptrack maps (
ptrack.mapsize> 17200 MB), this resulted in a “FATAL/ERROR ptrack checkpoint: stat_buf.st_size != ptrack_map_size XXX != YYY” error during a checkpoint.Fixed building of covering indexes with included columns of type for which the collation is defined in the table. The fixed defect could result in an “
ERROR: could not determine which collation to use for string comparison” error during the ANALYZE operation on the table, although single columns could be successfully analyzed. To avoid this error in future, after upgrading, rebuild covering indexes built at least with one included column.
E.20.2. Migration to Version 12.6.2
If you are upgrading from a Postgres Pro Enterprise release based on the same PostgreSQL major version, it is enough to install the new version into your current installation directory.
When upgrading from Postgres Pro Enterprise versions 12.6.1 or lower, rebuild covering indexes containing at least one included column of type for which the collation was defined in the table.
To migrate from PostgreSQL, as well as Postgres Pro Standard or Postgres Pro Enterprise based on a previous PostgreSQL major version, see the migration instructions for version 12.