SQL-创建要加入列表的SQL

Question

我有下表：

CREATE temp TABLE "t_table" (
  usr_id bigint,
  address varchar[],
  msg_cnt bigint,
  usr_cnt bigint,
  source varchar[],
  last_update timestamp
);

添加数据：

INSERT INTO "t_table"(usr_id, address, msg_cnt, usr_cnt, source, last_update) VALUES (1, '{44.154.48.125,81.134.82.111,95.155.38.120,94.134.88.136}', 10, 3, '{src1,src2}', '2019-10-16 22:16:22.163000');
INSERT INTO "t_table"(usr_id, address, msg_cnt, usr_cnt, source, last_update) VALUES (2, '{44.154.48.125}', 10, 3, '{src1,src3}', '2019-10-16 22:16:22.163000');
INSERT INTO "t_table"(usr_id, address, msg_cnt, usr_cnt, source, last_update) VALUES (3, '{94.134.88.136}', 10, 3, '{src1,src4}', '2019-10-16 22:16:22.163000');
INSERT INTO "t_table"(usr_id, address, msg_cnt, usr_cnt, source, last_update) VALUES (4, '{127.0.0.1}', 10, 3, '{src1,src5}', '2019-10-16 22:16:22.163000');
INSERT INTO "t_table"(usr_id, address, msg_cnt, usr_cnt, source, last_update) VALUES (5, '{127.0.0.1,5.5.5.5}', 10, 3, '{src1,src3}', '2019-10-16 22:16:22.163000');
INSERT INTO "t_table"(usr_id, address, msg_cnt, usr_cnt, source, last_update) VALUES (6, '{1.1.0.9}', 10, 3, '{src1,src2}', '2019-10-16 22:16:22.163000');

查找共享地址的用户。

预期结果：

|      users                      |  address                                                    | sum_msg_cnt  |  sum_usr_cnt     | max_last_date                  | source                      |
|---------------------------------|-------------------------------------------------------------|--------------|------------------|--------------------------------|-----------------------------|
|    {1,2,3}                      |  {44.154.48.125,81.134.82.111,95.155.38.120,94.134.88.136}  | 30           |         9        |  "2019-10-16 22:16:22.163000"  |    {src4,src1,src2,src3}    |
|    {4,5}                        |  {127.0.0.1,5.5.5.5}                                        | 20           |         6        |  "2019-10-16 22:16:22.163000"  |    {src1,src5,src3}         |
|    {6}                          |  {1.1.0.9}                                                  | 10           |         3        |  "2019-10-16 22:16:22.163000"  |    {src1,src2}              |

问题：

如何制定SQL查询以获得预期结果？

非常感谢。

更多信息：

PostgreSQL 9.5.19

Answer 1

使用“分组依据”运算符对地址进行分组