27 lines
		
	
	
		
			393 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
			
		
		
	
	
			27 lines
		
	
	
		
			393 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
SELECT
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  user_id,
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  ip,
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  max(used_at) AS used_at
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FROM (
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  SELECT
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    id AS user_id,
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    sign_up_ip AS ip,
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    created_at AS used_at
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  FROM users
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  WHERE sign_up_ip IS NOT NULL
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  UNION ALL
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  SELECT
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    user_id,
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    ip,
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    updated_at
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  FROM session_activations
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  UNION ALL
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  SELECT
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    user_id,
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    ip,
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    created_at
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  FROM login_activities
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  WHERE success = 't'
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) AS t0
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GROUP BY user_id, ip
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