AWS Cross account access using table ARN with query

[mzientkowski]

Version: 3.10.0

Issue: Querying GSI with AWS Cross-Account Access in Dynamoid Uses Table Name Instead of Table ARN

Description

When querying a Global Secondary Index (GSI) in Dynamoid using AWS cross-account access, the library builds the query using the table name instead of the table ARN. This behavior causes issues since the correct ARN is required for cross-account access.

Example Code

class Offer
  include Dynamoid::Document

  table name: 'arn:aws:dynamodb:eu-west-1:123559793147:table/offers', key: :join_id, capacity_mode: :on_demand
  field :shop_id, :string
  field :sanitized_link, :string

  global_secondary_index name: :shop_id_sanitized_link,
                         hash_key: :shop_id, range_key: :sanitized_link, projected_attributes: :all
end

Steps to Reproduce

This works correctly since the table ARN is used under the hood.

Offer.find('join_id')

Attempt to query a GSI. The generated query uses the table name (offers) instead of the table ARN.

Offer.where(shop_id: 'shop_id', sanitized_url: 'sanitized_url').with_index(:shop_id_sanitized_link).first

Workaround

I implemented a monkey patch to resolve the issue temporarily:

class Dynamoid::AdapterPlugin::AwsSdkV3::Table
  def name
    schema[:table_arn]
  end
end

[andrykonchin]

Thank you reporting the issue! I will look at it.