bug.js

var PouchDB = require('pouchdb');

PouchDB.plugin(require('pouchdb-find'));

db = new PouchDB("test");

db.createIndex({
    index: {
        fields: ['metadata.type']
    }
});

db.createIndex({
    index: {
        fields: ['date']
    }
});

query = async () => {
    return await db.find({
        selector: {
            "metadata.type": "Transaction"
        },
        sort: ["date"]
    });
}

try {
    query();
} catch(err) {
    console.log(err);
}