Drill uses standards compliant SQL for flat data. To work with all of the non-relational stores Drill supports complex types like maps and lists. The syntax fo

Drill uses standards compliant SQL for flat data. To work with all of the non-relational stores Drill supports complex types like maps and lists. The syntax for working with this complex data is the same javascript, i.e. a.b.c[3], so this is a compliant extension of SQL, but is non-standard.