This update for postgresql, postgresql13 fixes the following issues:

This update ships postgresql13.

Upgrade to version 13.1:

* CVE-2020-25695, bsc#1178666: Block DECLARE CURSOR ... WITH HOLD
  and firing of deferred triggers within index expressions and
  materialized view queries.
* CVE-2020-25694, bsc#1178667:
  a) Fix usage of complex connection-string parameters in pg_dump,
  pg_restore, clusterdb, reindexdb, and vacuumdb.
  b) When psql's \connect command re-uses connection parameters,
  ensure that all non-overridden parameters from a previous
  connection string are re-used.
* CVE-2020-25696, bsc#1178668: Prevent psql's \gset command from
  modifying specially-treated variables.
* Fix recently-added timetz test case so it works when the USA
  is not observing daylight savings time.
  (obsoletes postgresql-timetz.patch)
* https://www.postgresql.org/about/news/2111/
* https://www.postgresql.org/docs/13/release-13-1.html

Initial packaging of PostgreSQL 13:

* https://www.postgresql.org/about/news/2077/
* https://www.postgresql.org/docs/13/release-13.html

- bsc#1178961: %ghost the symlinks to pg_config and ecpg.

Changes in postgresql wrapper package:

- Bump major version to 13.
- We also transfer PostgreSQL 9.4.26 to the new package layout in
  SLE12-SP2 and newer. Reflect this in the conflict with
  postgresql94.
- Also conflict with PostgreSQL versions before 9.
- Conflicting with older versions is not limited to SLE.