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# Type of request: This is a ...

[ ] bug report
[X ] feature request

# Detailed description

I'm using localstack to create a dynamoDb table locally with a dynamodb stream and a flink application consuming data from the stream
The shardId created in localstack follows this format

shardId-000000000000-798cedd84a2953c5af70a131f8701f35

Flink expects this format
shardId-00000001592367572726-07776efd

The difference is just after the prefix shardId.
Normally the real shardId created by amazon use is composed by shardId prefix, 20-digit timestamp and 0-36 or more characters separated by '-'

The current shardId format is not valid for flink applications and it's not following the real pattern used by amazon

## Expected behavior

ShardId must follow the pattern
shardId prefix, 20-digit timestamp and 0-36 or more characters separated by '-'

## Actual behavior

The shardId follows the pattern
shardId prefix, 12 0s and 33 characters separated by '-'

# Steps to reproduce

Create a dynamodb table

## Command used to start LocalStack

I'm using docker and docker compose to run localstack


## Client code (AWS SDK code snippet, or sequence of "awslocal" commands)

aws --endpoint-url=http://localhost:4566 dynamodb create-table \
    --table-name temp4 \
    --attribute-definitions AttributeName=partition_key,AttributeType=S AttributeName=sort_key,AttributeType=S \
    --key-schema AttributeName=partition_key,KeyType=HASH AttributeName=sort_key,KeyType=RANGE \
    --provisioned-throughput ReadCapacityUnits=100,WriteCapacityUnits=100 \
    --stream-specification StreamEnabled=true,StreamViewType=NEW_AND_OLD_IMAGES


zip_file_content = zip_file_content or get_zip_bytes(code)
    
    code_sha_256 = base64.standard_b64encode(hashlib.sha256(zip_file_content).digest())
    lambda_details.get_version('$LATEST')['CodeSize'] = len(zip_file_content)
    lambda_details.get_version('$LATEST')['CodeSha256'] = code_sha_256.decode('utf-8')
    tmp_dir = '%s/zipfile.%s' % (config.TMP_FOLDER, short_uid())
    mkdir(tmp_dir)
    tmp_file = '%s/%s' % (tmp_dir, LAMBDA_ZIP_FILE_NAME)
    save_file(tmp_file, zip_file_content)
    TMP_FILES.append(tmp_dir)
    lambda_details.cwd = tmp_dir
    return tmp_dir
def set_function_code(code, lambda_name, lambda_cwd=None):
    def generic_handler(event, context):
        raise ClientError(('Unable to find executor for Lambda function "%s". Note that ' +
            'Node.js, Golang, and .Net Core Lambdas currently require LAMBDA_EXECUTOR=docker') % lambda_name)
    arn = func_arn(lambda_name)
    lambda_details = arn_to_lambda[arn]
    runtime = lambda_details.runtime
    lambda_environment = lambda_details.envvars
    handler_name = lambda_details.handler = lambda_details.handler or LAMBDA_DEFAULT_HANDLER
    code_passed = code
    code = code or lambda_details.code
    is_local_mount = code.get('S3Bucket') == BUCKET_MARKER_LOCAL
    zip_file_content = None
    if code_passed:
        lambda_cwd = lambda_cwd or set_archive_code(code_passed, lambda_name)
        if not is_local_mount:
            
            zip_file_content = get_zip_bytes(code_passed)