diff options
Diffstat (limited to 'db/post_migrate/20170503004427_update_retried_for_ci_build.rb')
-rw-r--r-- | db/post_migrate/20170503004427_update_retried_for_ci_build.rb | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/db/post_migrate/20170503004427_update_retried_for_ci_build.rb b/db/post_migrate/20170503004427_update_retried_for_ci_build.rb deleted file mode 100644 index 596f8593308..00000000000 --- a/db/post_migrate/20170503004427_update_retried_for_ci_build.rb +++ /dev/null @@ -1,69 +0,0 @@ -# rubocop:disable Migration/UpdateLargeTable -class UpdateRetriedForCiBuild < ActiveRecord::Migration[4.2] - include Gitlab::Database::MigrationHelpers - - DOWNTIME = false - - disable_ddl_transaction! - - def up - if Gitlab::Database.mysql? - up_mysql - else - disable_statement_timeout do - up_postgres - end - end - end - - def down - end - - private - - def up_mysql - # This is a trick to overcome MySQL limitation: - # Mysql2::Error: Table 'ci_builds' is specified twice, both as a target for 'UPDATE' and as a separate source for data - # However, this leads to create a temporary table from `max(ci_builds.id)` which is slow and do full database update - execute <<-SQL.strip_heredoc - UPDATE ci_builds SET retried= - (id NOT IN ( - SELECT * FROM (SELECT MAX(ci_builds.id) FROM ci_builds GROUP BY commit_id, name) AS latest_jobs - )) - WHERE retried IS NULL - SQL - end - - def up_postgres - with_temporary_partial_index do - latest_id = <<-SQL.strip_heredoc - SELECT MAX(ci_builds2.id) - FROM ci_builds ci_builds2 - WHERE ci_builds.commit_id=ci_builds2.commit_id - AND ci_builds.name=ci_builds2.name - SQL - - # This is slow update as it does single-row query - # This is designed to be run as idle, or a post deployment migration - is_retried = Arel.sql("((#{latest_id}) != ci_builds.id)") - - update_column_in_batches(:ci_builds, :retried, is_retried) do |table, query| - query.where(table[:retried].eq(nil)) - end - end - end - - def with_temporary_partial_index - if Gitlab::Database.postgresql? - unless index_exists?(:ci_builds, :id, name: :index_for_ci_builds_retried_migration) - execute 'CREATE INDEX CONCURRENTLY index_for_ci_builds_retried_migration ON ci_builds (id) WHERE retried IS NULL;' - end - end - - yield - - if Gitlab::Database.postgresql? && index_exists?(:ci_builds, :id, name: :index_for_ci_builds_retried_migration) - execute 'DROP INDEX CONCURRENTLY index_for_ci_builds_retried_migration' - end - end -end |