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# frozen_string_literal: true
class AddUniqueIndexForBatchedBackgroundMigrations < ActiveRecord::Migration[6.1]
include Gitlab::Database::MigrationHelpers
disable_ddl_transaction!
TABLE_NAME = :batched_background_migrations
INDEX_NAME = 'index_batched_background_migrations_on_unique_configuration'
REDUNDANT_INDEX_NAME = 'index_batched_migrations_on_job_table_and_column_name'
def up
add_concurrent_index TABLE_NAME,
%i[job_class_name table_name column_name job_arguments],
unique: true,
name: INDEX_NAME
remove_concurrent_index_by_name TABLE_NAME, REDUNDANT_INDEX_NAME
end
def down
add_concurrent_index TABLE_NAME,
%i[job_class_name table_name column_name],
name: REDUNDANT_INDEX_NAME
remove_concurrent_index_by_name TABLE_NAME, INDEX_NAME
end
end
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