81 lines
2.9 KiB
Ruby
81 lines
2.9 KiB
Ruby
|
# frozen_string_literal: true
|
||
|
|
|
||
|
|
module Gitlab
|
||
|
|
module Database
|
||
|
|
module AsyncIndexes
|
||
|
|
module MigrationHelpers
|
||
|
|
def unprepare_async_index(table_name, column_name, **options)
|
||
|
|
return unless async_index_creation_available?
|
||
|
|
|
||
|
|
index_name = options[:name] || index_name(table_name, column_name)
|
||
|
|
|
||
|
|
raise 'Specifying index name is mandatory - specify name: argument' unless index_name
|
||
|
|
|
||
|
|
unprepare_async_index_by_name(table_name, index_name)
|
||
|
|
end
|
||
|
|
|
||
|
|
def unprepare_async_index_by_name(table_name, index_name, **options)
|
||
|
|
return unless async_index_creation_available?
|
||
|
|
|
||
|
|
PostgresAsyncIndex.find_by(name: index_name).try do |async_index|
|
||
|
|
async_index.destroy
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
# Prepares an index for asynchronous creation.
|
||
|
|
#
|
||
|
|
# Stores the index information in the postgres_async_indexes table to be created later. The
|
||
|
|
# index will be always be created CONCURRENTLY, so that option does not need to be given.
|
||
|
|
# If an existing asynchronous definition exists with the same name, the existing entry will be
|
||
|
|
# updated with the new definition.
|
||
|
|
#
|
||
|
|
# If the requested index has already been created, it is not stored in the table for
|
||
|
|
# asynchronous creation.
|
||
|
|
def prepare_async_index(table_name, column_name, **options)
|
||
|
|
return unless async_index_creation_available?
|
||
|
|
|
||
|
|
index_name = options[:name] || index_name(table_name, column_name)
|
||
|
|
|
||
|
|
raise 'Specifying index name is mandatory - specify name: argument' unless index_name
|
||
|
|
|
||
|
|
options = options.merge({ algorithm: :concurrently })
|
||
|
|
|
||
|
|
if index_exists?(table_name, column_name, **options)
|
||
|
|
Gitlab::AppLogger.warn(
|
||
|
|
message: 'Index not prepared because it already exists',
|
||
|
|
table_name: table_name,
|
||
|
|
index_name: index_name)
|
||
|
|
|
||
|
|
return
|
||
|
|
end
|
||
|
|
|
||
|
|
index, algorithm, if_not_exists = add_index_options(table_name, column_name, **options)
|
||
|
|
|
||
|
|
create_index = ActiveRecord::ConnectionAdapters::CreateIndexDefinition.new(index, algorithm, if_not_exists)
|
||
|
|
schema_creation = ActiveRecord::ConnectionAdapters::PostgreSQL::SchemaCreation.new(ApplicationRecord.connection)
|
||
|
|
definition = schema_creation.accept(create_index)
|
||
|
|
|
||
|
|
async_index = PostgresAsyncIndex.safe_find_or_create_by!(name: index_name) do |rec|
|
||
|
|
rec.table_name = table_name
|
||
|
|
rec.definition = definition
|
||
|
|
end
|
||
|
|
|
||
|
|
Gitlab::AppLogger.info(
|
||
|
|
message: 'Prepared index for async creation',
|
||
|
|
table_name: async_index.table_name,
|
||
|
|
index_name: async_index.name)
|
||
|
|
|
||
|
|
async_index
|
||
|
|
end
|
||
|
|
|
||
|
|
private
|
||
|
|
|
||
|
|
def async_index_creation_available?
|
||
|
|
ApplicationRecord.connection.table_exists?(:postgres_async_indexes) &&
|
||
|
|
Feature.enabled?(:database_async_index_creation, type: :ops)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|