135 lines
4.2 KiB
Ruby
135 lines
4.2 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::Database::PostgresPartitionedTable, type: :model do
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let_it_be(:foo_range_table_name) { '_test_gitlab_main_foo_range' }
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let_it_be(:foo_list_table_name) { '_test_gitlab_main_foo_list' }
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let_it_be(:foo_hash_table_name) { '_test_gitlab_main_foo_hash' }
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let_it_be(:schema) { 'public' }
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let_it_be(:name) { foo_range_table_name }
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let_it_be(:identifier) { "#{schema}.#{name}" }
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before_all do
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ActiveRecord::Base.connection.execute(<<~SQL)
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CREATE TABLE #{schema}.#{foo_range_table_name} (
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id serial NOT NULL,
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created_at timestamptz NOT NULL,
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PRIMARY KEY (id, created_at)
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) PARTITION BY RANGE(created_at);
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CREATE TABLE #{schema}.#{foo_list_table_name} (
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id serial NOT NULL,
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row_type text NOT NULL,
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PRIMARY KEY (id, row_type)
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) PARTITION BY LIST(row_type);
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CREATE TABLE #{schema}.#{foo_hash_table_name} (
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id serial NOT NULL,
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row_value int NOT NULL,
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PRIMARY KEY (id, row_value)
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) PARTITION BY HASH (row_value);
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SQL
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end
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def find(identifier)
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described_class.by_identifier(identifier)
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end
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describe 'associations' do
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it { is_expected.to have_many(:postgres_partitions).with_primary_key('identifier').with_foreign_key('parent_identifier') }
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end
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it_behaves_like 'a postgres model'
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describe '.find_by_name_in_current_schema' do
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it 'finds the partitioned tables in the current schema by name', :aggregate_failures do
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partitioned_table = described_class.find_by_name_in_current_schema(name)
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expect(partitioned_table).not_to be_nil
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expect(partitioned_table.identifier).to eq(identifier)
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end
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it 'does not find partitioned tables in a different schema' do
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ActiveRecord::Base.connection.execute(<<~SQL)
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ALTER TABLE #{identifier} SET SCHEMA gitlab_partitions_dynamic
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SQL
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expect(described_class.find_by_name_in_current_schema(name)).to be_nil
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end
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end
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describe '.each_partition' do
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context 'without partitions' do
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it 'does not yield control' do
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expect { |b| described_class.each_partition(name, &b) }.not_to yield_control
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end
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end
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context 'with partitions' do
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let(:partition_schema) { 'gitlab_partitions_dynamic' }
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let(:partition1_name) { "#{partition_schema}.#{name}_202001" }
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let(:partition2_name) { "#{partition_schema}.#{name}_202002" }
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before do
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ActiveRecord::Base.connection.execute(<<~SQL)
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CREATE TABLE #{partition1_name} PARTITION OF #{identifier}
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FOR VALUES FROM ('2020-01-01') TO ('2020-02-01');
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CREATE TABLE #{partition2_name} PARTITION OF #{identifier}
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FOR VALUES FROM ('2020-02-01') TO ('2020-03-01');
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SQL
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end
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it 'yields control with partition as argument' do
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args = Gitlab::Database::PostgresPartition
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.where(identifier: [partition1_name, partition2_name])
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.order(:name).to_a
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expect { |b| described_class.each_partition(name, &b) }.to yield_successive_args(*args)
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end
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end
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end
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describe '#dynamic?' do
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it 'returns true for tables partitioned by range' do
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expect(find("#{schema}.#{foo_range_table_name}")).to be_dynamic
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end
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it 'returns true for tables partitioned by list' do
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expect(find("#{schema}.#{foo_list_table_name}")).to be_dynamic
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end
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it 'returns false for tables partitioned by hash' do
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expect(find("#{schema}.#{foo_hash_table_name}")).not_to be_dynamic
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end
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end
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describe '#static?' do
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it 'returns false for tables partitioned by range' do
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expect(find("#{schema}.#{foo_range_table_name}")).not_to be_static
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end
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it 'returns false for tables partitioned by list' do
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expect(find("#{schema}.#{foo_list_table_name}")).not_to be_static
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end
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it 'returns true for tables partitioned by hash' do
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expect(find("#{schema}.#{foo_hash_table_name}")).to be_static
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end
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end
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describe '#strategy' do
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it 'returns the partitioning strategy' do
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expect(find(identifier).strategy).to eq('range')
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end
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end
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describe '#key_columns' do
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it 'returns the partitioning key columns' do
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expect(find(identifier).key_columns).to match_array(['created_at'])
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end
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end
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end
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