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mongodump --username user --password password --db db --collection collection --query '{$and: [{"id": "ABCD"}, {"sz": {$gt: NumberLong(100)}}]}' --out dump

When executed, mongodump complained with:

assertion: 16619 code FailedToParse: FailedToParse: Bad characters in value: offset:63

If I escape the $and and $gt clauses:

mongodump --username user --password password --db db --collection collection --query '{\$and: [{"id": "ABCD"}, {"sz": {\$gt: NumberLong(100)}}]}' --out dump

It will instead complain with

assertion: 16619 code FailedToParse: FailedToParse: First character in field must be [A-Za-z$_]: offset:1

This query runs successfully on mongodb shell, I can't see why I can't use it as a --query parameter in mongodump.

lolski
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1 Answers1

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In my opinion your $and clause is not needed. {a: 'a', b: 'b'} is the same as $and : [{a: 'a'}, {b: 'b'}].

You also do not need to use "id", you can just write id, the same for NumberLong.

So I would rewrite it as ... --query '{id: "ABCD", sz: {$gt: 100}}' --out dump which works (you do not to escape $ if you are in a single quotes).

Salvador Dali
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