Hi @Thushar R​ ,

This option is not a part of Dataframe write API as GeneratedAlwaysAs feature is only applicable to Delta format and df.write is a common API to handle writes for all formats.

If you to achieve this programmatically, you can still use DeltaTable API to create the table first as below

DeltaTable.create(spark) \

.tableName("default.events") \

.addColumn("eventId", "BIGINT") \

.addColumn("data", "STRING") \

.addColumn("eventType", "STRING") \

.addColumn("eventTime", "TIMESTAMP") \

.addColumn("year", "INT", generatedAlwaysAs="YEAR(eventTime)") \

.addColumn("month", "INT", generatedAlwaysAs="MONTH(eventTime)") \

.addColumn("day", "INT", generatedAlwaysAs="DAY(eventTime)") \

.partitionedBy("eventType", "year", "month", "day") \

.execute()