Possible Bug with Amazon DynamoDB for Unity using ScanAsync

Question

While trying to scan my new database based on a boolean ScanCondition I encountered what I think is a bug. I have the following:

try{
  var search = context.ScanAsync<Card>(new ScanCondition("Contest",ScanOperator.Equal,false));
  search.GetRemainingAsync(result=>{
    if(result.Exception != null){
      //Handle Exception
    }else{
      foreach(Card a in result.Result){
      print("RESULT: " + a.Name);
    }
  }
 });
}

The database has a card, TestCard, with a value of Contest = false. However, this ScanAsync does not return the TestCard. If I change the ScanOperator to ScanOperator.NotEqual and again scan for cards with Contest = false, it will return the card erroneously. Apparently, it is not translating between the DynamoDB Boolean and the C# bool values.

Has anyone else encountered this bug? I was under the impression that all primitives translated automatically.

Dylan Reedy · Accepted Answer · 2017-09-18 19:32:45Z

1

The "Scan" feature of a DynamoDB table will only compare strings, binaries, and numbers. Scanning on a different primitive type doesn't throw an error, but it also does not compare correctly.

answered Sep 18, 2017 at 19:32

Dylan Reedy

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