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-rw-r--r--lib/gitlab/database.rb26
-rw-r--r--spec/lib/gitlab/database_spec.rb86
2 files changed, 112 insertions, 0 deletions
diff --git a/lib/gitlab/database.rb b/lib/gitlab/database.rb
index 872e70f9a5d..8eacad078c8 100644
--- a/lib/gitlab/database.rb
+++ b/lib/gitlab/database.rb
@@ -61,6 +61,10 @@ module Gitlab
@version ||= database_version.match(/\A(?:PostgreSQL |)([^\s]+).*\z/)[1]
end
+ def self.postgresql_9_or_less?
+ postgresql? && version.to_f < 10
+ end
+
def self.join_lateral_supported?
postgresql? && version.to_f >= 9.3
end
@@ -69,6 +73,28 @@ module Gitlab
postgresql? && version.to_f >= 9.4
end
+ def self.pg_stat_wal_receiver_supported?
+ postgresql? && version.to_f >= 9.6
+ end
+
+ # map some of the function names that changed between PostgreSQL 9 and 10
+ # https://wiki.postgresql.org/wiki/New_in_postgres_10
+ def self.pg_wal_lsn_diff
+ Gitlab::Database.postgresql_9_or_less? ? 'pg_xlog_location_diff' : 'pg_wal_lsn_diff'
+ end
+
+ def self.pg_current_wal_insert_lsn
+ Gitlab::Database.postgresql_9_or_less? ? 'pg_current_xlog_insert_location' : 'pg_current_wal_insert_lsn'
+ end
+
+ def self.pg_last_wal_receive_lsn
+ Gitlab::Database.postgresql_9_or_less? ? 'pg_last_xlog_receive_location' : 'pg_last_wal_receive_lsn'
+ end
+
+ def self.pg_last_wal_replay_lsn
+ Gitlab::Database.postgresql_9_or_less? ? 'pg_last_xlog_replay_location' : 'pg_last_wal_replay_lsn'
+ end
+
def self.nulls_last_order(field, direction = 'ASC')
order = "#{field} #{direction}"
diff --git a/spec/lib/gitlab/database_spec.rb b/spec/lib/gitlab/database_spec.rb
index 782e4e45a91..7d76519dddd 100644
--- a/spec/lib/gitlab/database_spec.rb
+++ b/spec/lib/gitlab/database_spec.rb
@@ -65,6 +65,28 @@ describe Gitlab::Database do
end
end
+ describe '.postgresql_9_or_less?' do
+ it 'returns false when using MySQL' do
+ allow(described_class).to receive(:postgresql?).and_return(false)
+
+ expect(described_class.postgresql_9_or_less?).to eq(false)
+ end
+
+ it 'returns true when using PostgreSQL 9.6' do
+ allow(described_class).to receive(:postgresql?).and_return(true)
+ allow(described_class).to receive(:version).and_return('9.6')
+
+ expect(described_class.postgresql_9_or_less?).to eq(true)
+ end
+
+ it 'returns false when using PostgreSQL 10 or newer' do
+ allow(described_class).to receive(:postgresql?).and_return(true)
+ allow(described_class).to receive(:version).and_return('10')
+
+ expect(described_class.postgresql_9_or_less?).to eq(false)
+ end
+ end
+
describe '.join_lateral_supported?' do
it 'returns false when using MySQL' do
allow(described_class).to receive(:postgresql?).and_return(false)
@@ -109,6 +131,70 @@ describe Gitlab::Database do
end
end
+ describe '.pg_wal_lsn_diff' do
+ it 'returns old name when using PostgreSQL 9.6' do
+ allow(described_class).to receive(:postgresql?).and_return(true)
+ allow(described_class).to receive(:version).and_return('9.6')
+
+ expect(described_class.pg_wal_lsn_diff).to eq('pg_xlog_location_diff')
+ end
+
+ it 'returns new name when using PostgreSQL 10 or newer' do
+ allow(described_class).to receive(:postgresql?).and_return(true)
+ allow(described_class).to receive(:version).and_return('10')
+
+ expect(described_class.pg_wal_lsn_diff).to eq('pg_wal_lsn_diff')
+ end
+ end
+
+ describe '.pg_current_wal_insert_lsn' do
+ it 'returns old name when using PostgreSQL 9.6' do
+ allow(described_class).to receive(:postgresql?).and_return(true)
+ allow(described_class).to receive(:version).and_return('9.6')
+
+ expect(described_class.pg_current_wal_insert_lsn).to eq('pg_current_xlog_insert_location')
+ end
+
+ it 'returns new name when using PostgreSQL 10 or newer' do
+ allow(described_class).to receive(:postgresql?).and_return(true)
+ allow(described_class).to receive(:version).and_return('10')
+
+ expect(described_class.pg_current_wal_insert_lsn).to eq('pg_current_wal_insert_lsn')
+ end
+ end
+
+ describe '.pg_last_wal_receive_lsn' do
+ it 'returns old name when using PostgreSQL 9.6' do
+ allow(described_class).to receive(:postgresql?).and_return(true)
+ allow(described_class).to receive(:version).and_return('9.6')
+
+ expect(described_class.pg_last_wal_receive_lsn).to eq('pg_last_xlog_receive_location')
+ end
+
+ it 'returns new name when using PostgreSQL 10 or newer' do
+ allow(described_class).to receive(:postgresql?).and_return(true)
+ allow(described_class).to receive(:version).and_return('10')
+
+ expect(described_class.pg_last_wal_receive_lsn).to eq('pg_last_wal_receive_lsn')
+ end
+ end
+
+ describe '.pg_last_wal_replay_lsn' do
+ it 'returns old name when using PostgreSQL 9.6' do
+ allow(described_class).to receive(:postgresql?).and_return(true)
+ allow(described_class).to receive(:version).and_return('9.6')
+
+ expect(described_class.pg_last_wal_replay_lsn).to eq('pg_last_xlog_replay_location')
+ end
+
+ it 'returns new name when using PostgreSQL 10 or newer' do
+ allow(described_class).to receive(:postgresql?).and_return(true)
+ allow(described_class).to receive(:version).and_return('10')
+
+ expect(described_class.pg_last_wal_replay_lsn).to eq('pg_last_wal_replay_lsn')
+ end
+ end
+
describe '.nulls_last_order' do
context 'when using PostgreSQL' do
before do