$in should take a list (array) of values. But it currently also accepts an object. An object should probably trigger a query parse error.
c = db.c;
c.drop();
c.save( { a:1 } );
c.save( { a:2 } );
c.save( { a:3 } );
// Works
printjson( c.find( { a:{ $in:[ 1, 3 ] } } ).toArray() );
// Works the same as the above line, but it should probably be uassert.
printjson( c.find( { a:{ $in:{ x:1, y:3 } } } ).toArray() );
- is related to
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SERVER-7391 Parse bson queries into new MatchExpression AST
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- Closed
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- related to
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SERVER-6400 Refactor Matcher/QueryExpression
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- Closed
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