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path: root/db/migrate/20210430124630_add_devops_adoption_indexes.rb
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# frozen_string_literal: true

class AddDevopsAdoptionIndexes < ActiveRecord::Migration[6.0]
  include Gitlab::Database::MigrationHelpers

  disable_ddl_transaction!

  SEGMENTS_INDEX_NAME = 'idx_devops_adoption_segments_namespaces_pair'
  SNAPSHOT_END_TIME_INDEX_NAME = 'idx_devops_adoption_segments_namespace_end_time'
  SNAPSHOT_RECORDED_AT_INDEX_NAME = 'idx_devops_adoption_segments_namespace_recorded_at'

  def up
    add_concurrent_index :analytics_devops_adoption_snapshots, [:namespace_id, :end_time],
                         name: SNAPSHOT_END_TIME_INDEX_NAME
    add_concurrent_index :analytics_devops_adoption_snapshots, [:namespace_id, :recorded_at],
                         name: SNAPSHOT_RECORDED_AT_INDEX_NAME
    add_concurrent_index :analytics_devops_adoption_segments, [:display_namespace_id, :namespace_id],
                         unique: true, name: SEGMENTS_INDEX_NAME

    add_concurrent_foreign_key :analytics_devops_adoption_snapshots, :namespaces, column: :namespace_id
    add_concurrent_foreign_key :analytics_devops_adoption_segments, :namespaces, column: :display_namespace_id
  end

  def down
    remove_foreign_key :analytics_devops_adoption_segments, :namespaces, column: :display_namespace_id
    remove_foreign_key :analytics_devops_adoption_snapshots, :namespaces, column: :namespace_id

    remove_concurrent_index_by_name :analytics_devops_adoption_segments, SEGMENTS_INDEX_NAME
    remove_concurrent_index_by_name :analytics_devops_adoption_snapshots, SNAPSHOT_RECORDED_AT_INDEX_NAME
    remove_concurrent_index_by_name :analytics_devops_adoption_snapshots, SNAPSHOT_END_TIME_INDEX_NAME
  end
end