Connecting AWS Neptune data to Athena using Federated Query functionality via the Athena Neptune Connector without using Glue

What does this error code mean: GENERIC_INTERNAL_ERROR: Cannot invoke “String.toLowerCase(java.util.Locale)” because “schema” is null This query ran against the “neptune_temp_db” database, unless qualified by the query.

Hi @isaivas and welcome to the Quick Sight community.
To my understanding, this error code is the result of your connector between Neptune and Athena encountering missing or undefined schema; potentially encountering an unexpected null in schema handling logic.

Thank you Brett, this makes sense. This blog is outdated: Build interactive graph data analytics and visualizations using Amazon Neptune, Amazon Athena Federated Query, and Amazon QuickSight | AWS Database Blog

The user was attempting to recreate this without Glue, but today the Neptune connector does require Glue Data Catalogs.

Hi @isaivas,
Thank you for the information regarding the blog, I’ll submit to the support team so that the blog can be considered for adjustment.