Tonic Structural supports Spark 2.4.x, Spark 3.0.x, and Spark 3.1.x. Spark 2.4.2 is not supported.
Any version of Databricks that runs one of those Spark versions should be compatible. Structural specifically has been tested against Databricks versions 9.1, and 10.4.
Structural supports the following data providers:
Parquet
Parquet
CSV
Parquet
Avro
Avro
JSON
JSON
ORC
ORC
Delta
Delta
Databricks supports both MANAGED and EXTERNAL tables.
MANAGED tables store all of their data within Databricks.
EXTERNAL tables store their data on a separate file system (often S3).
Structural can read from both table types. When it writes output data, Structural only writes to EXTERNAL tables.