gitlab-org--gitlab-foss/db/migrate/20180308052825_add_section_...

24 lines
789 B
Ruby

class AddSectionNameIdIndexOnCiBuildTraceSections < ActiveRecord::Migration[4.2]
include Gitlab::Database::MigrationHelpers
# Set this constant to true if this migration requires downtime.
DOWNTIME = false
INDEX_NAME = 'index_ci_build_trace_sections_on_section_name_id'
disable_ddl_transaction!
def up
# MySQL may already have this as a foreign key
unless index_exists?(:ci_build_trace_sections, :section_name_id, name: INDEX_NAME)
add_concurrent_index :ci_build_trace_sections, :section_name_id, name: INDEX_NAME
end
end
def down
# We cannot remove index for MySQL because it's needed for foreign key
if Gitlab::Database.postgresql?
remove_concurrent_index :ci_build_trace_sections, :section_name_id, name: INDEX_NAME
end
end
end