DYNDB021: Reserved word usage

Field	Value
Code	DYNDB021
Severity	Warning

Message

Property '{0}' uses DynamoDB reserved word '{1}' as attribute name

Description

Using DynamoDB reserved words as attribute names may cause query issues. Consider using a different attribute name. While the library handles expression attribute names automatically, using reserved words can make debugging queries more difficult.

Example

The following code triggers this diagnostic:

[DynamoDbTable("Users")]
public partial class User
{
    [PartitionKey]
    [DynamoDbAttribute("pk")]
    public string Pk { get; set; } = string.Empty;

    [DynamoDbAttribute("status")]
    public string Status { get; set; } = string.Empty;

    [DynamoDbAttribute("name")]
    public string Name { get; set; } = string.Empty;
}

Fix

The corrected version:

[DynamoDbTable("Users")]
public partial class User
{
    [PartitionKey]
    [DynamoDbAttribute("pk")]
    public string Pk { get; set; } = string.Empty;

    [DynamoDbAttribute("userStatus")]
    public string Status { get; set; } = string.Empty;

    [DynamoDbAttribute("userName")]
    public string Name { get; set; } = string.Empty;
}