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# frozen_string_literal: true
class AddDeploymentMergeRequests < ActiveRecord::Migration[5.2]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
def change
create_table :deployment_merge_requests, id: false do |t|
t.references(
:deployment,
foreign_key: { on_delete: :cascade },
type: :integer,
index: false,
null: false
)
t.references(
:merge_request,
foreign_key: { on_delete: :cascade },
type: :integer,
index: true,
null: false
)
t.index(
[:deployment_id, :merge_request_id],
unique: true,
name: 'idx_deployment_merge_requests_unique_index'
)
end
end
end
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