15 lines
		
	
	
	
		
			419 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
		
		
			
		
	
	
			15 lines
		
	
	
	
		
			419 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
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								class RemoveOldReblogIndexOnStatuses < ActiveRecord::Migration[5.1]
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								  disable_ddl_transaction!
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								  def up
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								    # This index may not exists (see migration 20171122120436)
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								    remove_index :statuses, [:account_id, :reblog_of_id] if index_exists?(:statuses, [:account_id, :reblog_of_id])
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								    remove_index :statuses, :reblog_of_id
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								  end
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								  def down
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								    add_index :statuses, :reblog_of_id, algorithm: :concurrently
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								  end
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								end
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