case - uppercase and lowercase not working in Contains in Aws dynamoDB? -


in database, value uppercase(ex:krishna). when give search condition lowercase (ex:krishna). in case dynamodb scan contains - method returns empty result.but if give uppercase works fine.please me.

for reference code is:

var params = {     tablename: "user",     filterexpression: "not userid in (:a) , contains(event_name, :name)",     expressionattributevalues: {         ":a": {             s: $scope.userid         },         ":name": {             s: namekey         }     } };

using dynamodb scan method


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