Merge branch '422835-async-index-creation5' into 'master'

Prepare async index for p_ci_builds.project_id

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/145362



Merged-by: Marius Bobin <mbobin@gitlab.com>
Approved-by: Marius Bobin <mbobin@gitlab.com>
Reviewed-by: Marius Bobin <mbobin@gitlab.com>
Reviewed-by: Tianwen Chen <tchen@gitlab.com>
Co-authored-by: Tianwen Chen <tchen@gitlab.com>

db/post_migrate/20240412000002_prepare_async_index_for_builds_part5.rb

+# frozen_string_literal: true
+
+class PrepareAsyncIndexForBuildsPart5 < Gitlab::Database::Migration[2.2]
+  include Gitlab::Database::PartitioningMigrationHelpers
+
+  milestone '17.0'
+
+  INDEXES = [
+    {
+      name: :p_ci_builds_project_id_bigint_name_ref_idx,
+      columns: [:project_id_convert_to_bigint, :name, :ref],
+      options: { where: "type::text = 'Ci::Build'::text AND status::text = 'success'::text AND (retried = false OR retried IS NULL)" } # rubocop:disable Layout/LineLength -- it's just too long
+    },
+    {
+      name: :p_ci_builds_project_id_bigint_status_idx,
+      columns: [:project_id_convert_to_bigint, :status],
+      options: { where: "type::text = 'Ci::Build'::text AND (status::text = ANY (ARRAY['running'::character varying::text, 'pending'::character varying::text, 'created'::character varying::text]))" } # rubocop:disable Layout/LineLength -- it's just too long
+    },
+    {
+      name: :p_ci_builds_status_created_at_project_id_bigint_idx,
+      columns: [:status, :created_at, :project_id_convert_to_bigint],
+      options: { where: "type::text = 'Ci::Build'::text" }
+    }
+  ]
+  TABLE_NAME = :p_ci_builds
+
+  def up
+    Gitlab::Database::PostgresPartitionedTable.each_partition(TABLE_NAME) do |partition|
+      INDEXES.each do |definition|
+        name, columns, options = definition.values_at(:name, :columns, :options)
+        index_name = generated_index_name(partition.identifier, name)
+        prepare_async_index partition.identifier, columns, name: index_name, **(options || {})
+      end
+    end
+  end
+
+  def down
+    Gitlab::Database::PostgresPartitionedTable.each_partition(TABLE_NAME) do |partition|
+      INDEXES.each do |definition|
+        name, columns, options = definition.values_at(:name, :columns, :options)
+        index_name = generated_index_name(partition.identifier, name)
+        unprepare_async_index partition.identifier, columns, name: index_name, **(options || {})
+      end
+    end
+  end
+end

db/schema_migrations/20240412000002

+8f92fddae271fb9d10bfde8e9e17de16e03683ed73f078a5025a71f7a52b7df3
\ No newline at end of file