撰写 - 如何创建具有超级用户或复制角色的 PostgreSQL 用户？

Question

我正在尝试使用 compose transporter 将更改从 postgres 复制到 rabbitmq：

var source = postgres({
  "uri": "postgres://admin:****@****.dblayer.com:17596/compose"
  "debug": true,
  "tail": true,
  "replication_slot": "slot"
})
var sink = rmq = rabbitmq({
  "uri": "amqps://transporter:****@****.composedb.com:17597/****",
  "routing_key": "test",
  "key_in_field": false
  // "delivery_mode": 1, // non-persistent (1) or persistent (2)
  // "api_port": 15672,
  // "ssl": false,
  // "cacerts": ["/path/to/cert.pem"]
})
t.Source(source).Save(sink)

错误：

INFO[0001] Listening for changes...                      db=compose logical_decoding_slot=slot
ERRO[0002] error plucking from logical decoding pq: must be superuser or replication role to use replication slots  db=compose

如何设置具有超级用户或复制角色的 Postgres 用户？撰写时似乎不允许这样做？

ALTER USER admin WITH REPLICATION;

结果：

ERROR: must be superuser to alter replication users

另请注意：

Can I create a 'superuser'?

PostgreSQL allows the creation of a superuser. Being a superuser implies the ability to bypass all access permission checks within the database, so superuserdom should not be granted lightly. For security purposes, we do not allow the creation of superusers.

Source: https://help.compose.com/v2.0/docs/postgresql-faq

Answer 1

我从 Compose 支持部门收到的回复是 Compose PostgreSQL 不支持超级用户帐户。