I’m an novice to data engineering, i have some data , say json (sample data below) . my understanding of aws glue is, i can create a glue job to read these files from s3 and create glue tables or catalogs (not sure what the difference is here), but will i be able to maintain a foreign key type of relation here . in my example course_id is the foreign key relation . if yes, is there a example for this.