Some Google products export data directly into BigQuery tables. When recognized, Data Studio will automatically enrich the fields to include common aggregations, calculations, and field names.
Explore BigQuery data in Data Studio
Data analysts can explore BigQuery data using Google Data Studio from within the BigQuery console. Simply run your query or select a table, then use the Explore in Data Studio option to visualize the data in a Data Studio report.
BigQuery BI Engine
BigQuery BI Engine is a fast, in-memory analysis service. By using BI Engine, you can analyze data stored in BigQuery with sub-second query response time and with high concurrency. You can accelerate your reports and explorations by connecting Data Studio to a BigQuery table managed by BI Engine.
BI Engine offers up to 1 GB of free capacity to Data Studio users.
Google Analytics BigQuery export
When Data Studio encounters a table generated by Google Analytics BigQuery Export, the table will have a Google Analytics icon next to it. When selected, many of the common metrics found in Google Analytics will automatically be created as Data Studio fields.