model->update() uses the putItem instead of updateItem

[TishoTM]

Describe the bug

In cases when Dynamo items are queried via GSI with limited projection fields and then "updated" via the update() method, the fields that are not part of the GSI projected get implicitly removed.

The "BaoPham\DynamoDb\DynamoDbQueryBuilder" save() method uses the AWS putItem() instead of the updateItem() when the record exists.

Schema

GSI with a limited number of fields

Version info

• Laravel: 9
• laravel-dynamodb: 6.4.0