Support to Query and Projection Operators

Bindaas Mongo data source provider naturally supports all the query and projection operators.

Comparison Query Operators

Bindaas also supports comparison query operators such as $gt as shown above.

Element Query Operators

Bindaas supports the element query operators, $exists and $type.

{ "_operation" : "find" , "_operation_args" : { "query" : {'qty': { $exists: true }} , "fields" :{}, "skip" : 0, "limit" : 1000 } }

The above query returns the documents where the property 'qty' exists.

{ "_operation" : "find" , "_operation_args" : { "query" : {'qty': { $type: double }} , "fields" :{}, "skip" : 0, "limit" : 1000 } }

The above query returns the documents where the property 'qty' consists of a value type of double.

Regular Expressions

Bindaas supports regular expressions ($regex), as shown below.

{ "_operation" : "find" , "_operation_args" : { "query" : {'item': {$regex: "mp", $options: "i"}}, "fields" :{ 'type' : 0 }, "skip" : 0, "limit" : 1000, "sort" : {'qty': -1, '_id':1} } }

Projection Operators

Bindaas supports projection operators such as $meta as shown below:

{ "_operation" : "find" , "_operation_args" : { "query" : {}, "fields" :{'item': {$meta:'textScore'}}, "skip" : 0, "limit" : 1000, "sort" : {'qty': -1, '_id':1} } }