@Ryan Hager​ , yes it is possible using AUTO GENERATED COLUMNS since delta lake 1.2

For example, you can automatically generate a date column (for partitioning the table by date) from the timestamp column; any writes into the table need only specify the data for the timestamp column.

(DeltaTable.create(spark)
.tableName("default.people10m") 
 .addColumn("id", "INT") 
 .addColumn("birthDate", "TIMESTAMP") 
 .addColumn("dateOfBirth", DateType(), generatedAlwaysAs="CAST(birthDate AS DATE)") 
 .partitionedBy("dateOfBirth") 
 .execute())