22 lines
499 B
Ruby
22 lines
499 B
Ruby
class AddGroupMilestoneIdIndexes < ActiveRecord::Migration[4.2]
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include Gitlab::Database::MigrationHelpers
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disable_ddl_transaction!
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DOWNTIME = false
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def up
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return if index_exists?(:milestones, :group_id)
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add_concurrent_foreign_key :milestones, :namespaces, column: :group_id, on_delete: :cascade
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add_concurrent_index :milestones, :group_id
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end
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def down
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remove_foreign_key :milestones, column: :group_id
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remove_concurrent_index :milestones, :group_id
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end
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end
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