MongoDB-无法规范化查询:BadValue未知运算符:$ meta

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这在2.6.1中发生在我身上-因此，万一有人误入该错误，我想我应该把答案写出来.

This happened to me in 2.6.1 - So, in case anyone wanders into this error, I thought I'd write the answer out.

第一个命令运行良好，但是第二个命令却没有.

This first command worked fine, but the second one didn't.

db.test.find({$text: {$search: 'york'}} )

db.test.find({$text: {$search: 'york'}, score: {$meta: 'textScore'}} )

并抛出以下错误

{"$err": "Can't canonicalize query: BadValue unknown operator: $meta", "code": 17287}

原来，我把括号放在错误的位置..它应该已经读了.

Turns out I just had the brackets in the wrong place.. and it should have read.

//This works
db.test.find(
    { $text: { $search: 'york' } },
    { score: { $meta: 'textScore' } }
);

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