与以下sql查询相关的sequelize查询是什么？

Question

SELECT "count"(DISTINCT("displayedCandidates")) 
from 
   (SELECT unnest("displayedCandidates") "displayedCandidates" FROM  roles)
"displayedCandidates"

这里“ displayedCandidates”列是包含相关候选ID的字符串数组类型。我要查询的是显示的候选对象的不重复计数。此sql查询正常工作。

Answer 1

尝试一下：

return model.findAll({
  attributes: ['candidateId', 'displayedCandidates'],
   where: {
     candidateId: {
     [Op.in]: sequelize.literal('(SELECT unnest("displayedCandidates") as 
     "displayedCandidates" FROM "Roles" WHERE "candidateId" ='+ '\'' + candidateId + '\')'
  )
 }
}
})
.then((model) => {
 console.log(model);
 })
.catch((err) => {
 console.log(err);
});

阅读文档，这可能会对您有所帮助。

Sequelize Querying