Merge branch 'update-min-pg-version' into 'master'

Set PostgreSQL 12 as the minimum supported version

See merge request gitlab-org/gitlab!63471

README.md

@@ -82,7 +82,7 @@ GitLab is a Ruby on Rails application that runs on the following software:
 - Ruby (MRI) 2.7.2
 - Git 2.31+
 - Redis 5.0+
-- PostgreSQL 11+
+- PostgreSQL 12+
 
 For more information please see the [architecture](https://docs.gitlab.com/ee/development/architecture.html) and [requirements](https://docs.gitlab.com/ee/install/requirements.html) documentation.
 

doc/install/installation.md

@@ -292,7 +292,7 @@ sudo adduser --disabled-login --gecos 'GitLab' git
 ## 6. Database
 
 NOTE:
-In GitLab 12.1 and later, only PostgreSQL is supported. In GitLab 13.0 and later, we [require PostgreSQL 11+](requirements.md#postgresql-requirements).
+In GitLab 12.1 and later, only PostgreSQL is supported. In GitLab 14.0 and later, we [require PostgreSQL 12+](requirements.md#postgresql-requirements).
 
 1. Install the database packages.
 

doc/install/requirements.md

@@ -116,6 +116,7 @@ the following table) as these were used for development and testing:
 |----------------|----------------------------|
 | 10.0           | 9.6                        |
 | 13.0           | 11                         |
+| 14.0           | 12                         |
 
 You must also ensure the following extensions are loaded into every
 GitLab database. [Read more about this requirement, and troubleshooting](postgresql_extensions.md).

doc/update/upgrading_from_source.md

@@ -149,7 +149,7 @@ Remember to set `git -> bin_path` to `/usr/local/bin/git` in `config/gitlab.yml`
 ### 7. Update PostgreSQL
 
 WARNING:
-From GitLab 13.0, you must use at least PostgreSQL 11.
+From GitLab 14.0, you must use at least PostgreSQL 12.
 
 The latest version of GitLab might depend on a more recent PostgreSQL version
 than what you're currently running. You may also need to enable some

lib/gitlab/database.rb

@@ -14,7 +14,7 @@ module Gitlab
 
     # Minimum PostgreSQL version requirement per documentation:
     # https://docs.gitlab.com/ee/install/requirements.html#postgresql-requirements
-    MINIMUM_POSTGRES_VERSION = 11
+    MINIMUM_POSTGRES_VERSION = 12
 
     # https://www.postgresql.org/docs/9.2/static/datatype-numeric.html
     MAX_INT_VALUE = 2147483647

spec/lib/gitlab/database_spec.rb

@@ -125,10 +125,10 @@ RSpec.describe Gitlab::Database do
       expect(described_class.postgresql_minimum_supported_version?).to eq(false)
     end
 
-    it 'returns true when using PostgreSQL 11' do
+    it 'returns false when using PostgreSQL 11' do
       allow(described_class).to receive(:version).and_return('11')
 
-      expect(described_class.postgresql_minimum_supported_version?).to eq(true)
+      expect(described_class.postgresql_minimum_supported_version?).to eq(false)
     end
 
     it 'returns true when using PostgreSQL 12' do