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# frozen_string_literal: true
class RecreateIndexIssueEmailParticipantsOnIssueIdAndEmail < ActiveRecord::Migration[6.0]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
OLD_INDEX_NAME = 'index_issue_email_participants_on_issue_id_and_email'
NEW_INDEX_NAME = 'index_issue_email_participants_on_issue_id_and_lower_email'
def up
# This table is currently empty, so no need to worry about unique index violations
add_concurrent_index :issue_email_participants, 'issue_id, lower(email)', unique: true, name: NEW_INDEX_NAME
remove_concurrent_index_by_name :issue_email_participants, OLD_INDEX_NAME
end
def down
add_concurrent_index :issue_email_participants, [:issue_id, :email], unique: true, name: OLD_INDEX_NAME
remove_concurrent_index_by_name :issue_email_participants, NEW_INDEX_NAME
end
end
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