Add latest changes from gitlab-org/gitlab@13-6-stable-eev13.6.0-rc42

1 files changed, 75 insertions, 0 deletions

diff --git a/spec/lib/gitlab/database/postgres_partition_spec.rb b/spec/lib/gitlab/database/postgres_partition_spec.rb
new file mode 100644
index 00000000000..5a44090d5ae
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+++ b/spec/lib/gitlab/database/postgres_partition_spec.rb
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+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Database::PostgresPartition, type: :model do
+  let(:schema) { 'gitlab_partitions_dynamic' }
+  let(:name) { '_test_partition_01' }
+  let(:identifier) { "#{schema}.#{name}" }
+
+  before do
+    ActiveRecord::Base.connection.execute(<<~SQL)
+      CREATE TABLE public._test_partitioned_table (
+        id serial NOT NULL,
+        created_at timestamptz NOT NULL,
+        PRIMARY KEY (id, created_at)
+      ) PARTITION BY RANGE(created_at);
+
+      CREATE TABLE #{identifier} PARTITION OF public._test_partitioned_table
+      FOR VALUES FROM ('2020-01-01') to ('2020-02-01');
+    SQL
+  end
+
+  def find(identifier)
+    described_class.by_identifier(identifier)
+  end
+
+  describe 'associations' do
+    it { is_expected.to belong_to(:postgres_partitioned_table).with_primary_key('identifier').with_foreign_key('parent_identifier') }
+  end
+
+  it_behaves_like 'a postgres model'
+
+  describe '.for_parent_table' do
+    let(:second_name) { '_test_partition_02' }
+
+    before do
+      ActiveRecord::Base.connection.execute(<<~SQL)
+        CREATE TABLE #{schema}.#{second_name} PARTITION OF public._test_partitioned_table
+        FOR VALUES FROM ('2020-02-01') to ('2020-03-01');
+
+        CREATE TABLE #{schema}._test_other_table (
+          id serial NOT NULL,
+          created_at timestamptz NOT NULL,
+          PRIMARY KEY (id, created_at)
+        ) PARTITION BY RANGE(created_at);
+
+        CREATE TABLE #{schema}._test_other_partition_01 PARTITION OF #{schema}._test_other_table
+        FOR VALUES FROM ('2020-01-01') to ('2020-02-01');
+      SQL
+    end
+
+    it 'returns partitions for the parent table in the current schema' do
+      partitions = described_class.for_parent_table('_test_partitioned_table')
+
+      expect(partitions.count).to eq(2)
+      expect(partitions.pluck(:name)).to eq([name, second_name])
+    end
+
+    it 'does not return partitions for tables not in the current schema' do
+      expect(described_class.for_parent_table('_test_other_table').count).to eq(0)
+    end
+  end
+
+  describe '#parent_identifier' do
+    it 'returns the parent table identifier' do
+      expect(find(identifier).parent_identifier).to eq('public._test_partitioned_table')
+    end
+  end
+
+  describe '#condition' do
+    it 'returns the condition for the partitioned values' do
+      expect(find(identifier).condition).to eq("FOR VALUES FROM ('2020-01-01 00:00:00+00') TO ('2020-02-01 00:00:00+00')")
+    end
+  end
+end