amazon web services - How to query a StringSet value in DynamoDB (iOS)? -


i trying find out how search rows specific tag contained in stringset in aws dynamodb aws sdk v2 ios.

i couldn't find doing in official amazon ios documentation dynamodb, tried expression doesn't work:

let queryexpression = awsdynamodbqueryexpression() queryexpression.limit = 300 queryexpression.filterexpression = "tags contains :tag" queryexpression.expressionattributevalues = [":tag": self.searchquerytag]  global.appdelegate().dynamodbobjectmapper.query(blogpost.self, expression: queryexpression)     .continuewithblock({(task: awstask) -> anyobject? in      if (task.exception != nil || task.error != nil)     {         completion(response: 0)     }     else if ((task.result) != nil)     {         if(task.result!.count > 0)         {             // list ids…         }         else         {             completion(response: 0)         }     }      return nil })

can teach me how query specific string in stringsets (nssets) in dynamodb using aws ios sdk?

change line

queryexpression.filterexpression = "tags contains :tag"

to this

queryexpression.filterexpression = "contains(tags,:tag)"


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