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# frozen_string_literal: true
class AddUserIndexToEscalationRules < ActiveRecord::Migration[6.1]
include Gitlab::Database::MigrationHelpers
disable_ddl_transaction!
USER_INDEX_NAME = 'index_escalation_rules_on_user'
OLD_UNIQUE_INDEX_NAME = 'index_on_policy_schedule_status_elapsed_time_escalation_rules'
NEW_UNIQUE_INDEX_NAME = 'index_escalation_rules_on_all_attributes'
def up
remove_concurrent_index_by_name :incident_management_escalation_rules, OLD_UNIQUE_INDEX_NAME
add_concurrent_index :incident_management_escalation_rules, :user_id, name: USER_INDEX_NAME
add_concurrent_index :incident_management_escalation_rules,
[:policy_id, :oncall_schedule_id, :status, :elapsed_time_seconds, :user_id],
unique: true,
name: NEW_UNIQUE_INDEX_NAME
end
def down
remove_concurrent_index_by_name :incident_management_escalation_rules, USER_INDEX_NAME
remove_concurrent_index_by_name :incident_management_escalation_rules, NEW_UNIQUE_INDEX_NAME
exec_query 'DELETE FROM incident_management_escalation_rules WHERE oncall_schedule_id IS NULL'
add_concurrent_index :incident_management_escalation_rules,
[:policy_id, :oncall_schedule_id, :status, :elapsed_time_seconds],
unique: true,
name: OLD_UNIQUE_INDEX_NAME
end
end
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