diff options
Diffstat (limited to 'db/migrate/20200706035141_adjust_unique_index_alert_management_alerts.rb')
| -rw-r--r-- | db/migrate/20200706035141_adjust_unique_index_alert_management_alerts.rb | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/db/migrate/20200706035141_adjust_unique_index_alert_management_alerts.rb b/db/migrate/20200706035141_adjust_unique_index_alert_management_alerts.rb deleted file mode 100644 index 0a6e614be9a..00000000000 --- a/db/migrate/20200706035141_adjust_unique_index_alert_management_alerts.rb +++ /dev/null @@ -1,35 +0,0 @@ -# frozen_string_literal: true - -class AdjustUniqueIndexAlertManagementAlerts < ActiveRecord::Migration[6.0] - include Gitlab::Database::MigrationHelpers - - DOWNTIME = false - INDEX_NAME = 'index_alert_management_alerts_on_project_id_and_fingerprint' - NEW_INDEX_NAME = 'index_partial_am_alerts_on_project_id_and_fingerprint' - RESOLVED_STATUS = 2 - - disable_ddl_transaction! - - def up - add_concurrent_index(:alert_management_alerts, %w(project_id fingerprint), where: "status <> #{RESOLVED_STATUS}", name: NEW_INDEX_NAME, unique: true, using: :btree) - remove_concurrent_index_by_name :alert_management_alerts, INDEX_NAME - end - - def down - # Nullify duplicate fingerprints, except for the newest of each match (project_id, fingerprint). - query = <<-SQL - UPDATE alert_management_alerts am - SET fingerprint = NULL - WHERE am.created_at <> - (SELECT MAX(created_at) - FROM alert_management_alerts am2 - WHERE am.fingerprint = am2.fingerprint AND am.project_id = am2.project_id) - AND am.fingerprint IS NOT NULL; - SQL - - execute(query) - - remove_concurrent_index_by_name :alert_management_alerts, NEW_INDEX_NAME - add_concurrent_index(:alert_management_alerts, %w(project_id fingerprint), name: INDEX_NAME, unique: true, using: :btree) - end -end |