サブクエリから複数のフィールドのARRAYを返す方法

Question

複数のフィールドを返すサブクエリの配列を返すトップレベルのクエリが必要です。シンプルselect array(select ...);は次のエラーのために動作しません：クエリの

subquery must return only one column

パート：

(SELECT array(SELECT 
       logs_log.message -> 'slot_date', 
       logs_log.message -> 'start_time', 
       logs_log.message -> 'end_time', 
       logs_log.message -> 'source', 
       logs_log.message -> 'phone_number' 
       FROM 
       logs_log 
       WHERE 
       logs_log.message ->> 'phone_number' = leads_lead.phone_number)) 
    AS previous_appointments 

任意のアイデアをどのように私は、上記の結果を達成することができますか？

logs_logテーブル：

id, object_id, action_time, content_type_id, user_id, message 
28138, 0d36a20d-a251-41c3-ba7e-2d270004f4b1, 2017-01-27 06:48:06.550265+00, 18, 1, {"source": "driver_email", "end_time": "13:30:00", "slot_date": "0333-03-23", "start_time": "13:00:00", "phone_number": "1231231231"} 
28137, 0d074daa-0c77-4f96-b512-248cdfb9263b, 2017-01-24 21:31:16.140453+00, 18, 1, {"source": "driver_email", "end_time": "13:30:00", "slot_date": "3333-03-23", "start_time": "13:00:00", "phone_number": "9111111992"} 

leads_leadテーブル：

は

id, first_name, second_name, phone_number, city_id, source_id, external_id, attributes, created_at, ip_address, partner_id, tags 
ab99dbba-d339-407a-8e2d-c0ffd676213b,Денис,Антонов,7123123123,b3b62c53-6815-4898-b3b6-23a1196c1986,7ee38a21-32d0-4362-8519-0bc6e6ce37b8,20391438-4d19-48b3-aae0-8d1ab0d7ef93,"""{\""uuid\"":\""20392223-4d19-48b3-aae0-8d1ab0d7ef93\""}""",2016-11-07 17:30:00.583425+00,,, 

Answer 1

が

(SELECT array_agg(
      array[ 
       logs_log.message -> 'slot_date', 
       logs_log.message -> 'start_time', 
       logs_log.message -> 'end_time', 
       logs_log.message -> 'source', 
       logs_log.message -> 'phone_number' 
      ] 
     ) 
FROM logs_log 
WHERE logs_log.message ->> 'phone_number' = leads_lead.phone_number 
) AS previous_appointments