How can I use a limit and a required in an include?

Hi, I am trying to query an associated model via an include. I want to return only the models of the matched parents, returning only the first match of the children.

hook.params.sequelize = {
     include: [
          {
               model: 'executions',
               where: {
                    startedOn: null,
                    finishedOn: null,
               },
               limit: 1,
               required: true,
          }
     ]
}

Actual behavior

The result returns all the parents and it doesn’t matter if have executions or not.

 "data": [
    {
       id: 'dcc0aedf-c0d6-4bbe-b34d-257b8e8e8263',
       action: 9,
       executions: [ [executions] ]
    },
    {
       id: '31dadc19-1b8b-4b59-8ae6-ab9e28afcfb5',
       action: 13,
       executions: []
    }, 
   {
       id: '442a8921-11fa-4e9c-ad8e-fe57ea6cc854',
       action: 8,
       executions: [ [executions] ]
    }, 
 ]

Expected behavior

I want that the result returns only the parents that have executions.

 "data": [
    {
       id: 'dcc0aedf-c0d6-4bbe-b34d-257b8e8e8263',
       action: 9,
       executions: [ [executions] ]
    },
   {
       id: '442a8921-11fa-4e9c-ad8e-fe57ea6cc854',
       action: 8,
       executions: [ [executions] ]
    }, 
 ]

System configuration

“feathers-sequelize”: “^6.2.0”

[MariaCamilaCubides]

Thank you so much, that works with a little change. I had to add the property duplicating: false because before that I had missing FROM-clause entry for table "executions" at find execution-groups error, so I searched and found a solution here https://github.com/feathersjs-ecosystem/feathers-sequelize/issues/248.

hook.params.query = {
    '$executions.startedOn$': null,
    '$executions.finishedOn$': null,
    $limit: 1,
  };
  const association = {
    include: [
      {
        model: hook.app.service('executions').Model,
        as: 'executions',
        duplicating: false,
      },
    ],
  };
  hook.params.sequelize = Object.assign(association, { raw: false });

[chrisbag]

For those ending up on this thread, duplicating false does solve the issue but messes up the limit and offset. For this to work you need to make separate queries (separate:true). This works for one-to-many relations but does not work with many-to-many as is indicated in this thread which is 7 years old and has still has not been solved https://github.com/sequelize/sequelize/pull/4525 and https://github.com/sequelize/sequelize/issues/8457