The code block displayed below contains an error.

The format("parquet") expression is inappropriate to use here, "parquet" should be passed as first argument to the save() operator and "/FileStore/transactions_split" as the second argument.

Partitioning data by storeId is possible with the partitionBy expression, so partitionOn should be replaced by partitionBy.

Partitioning data by storeId is possible with the bucketBy expression, so partitionOn should be replaced by bucketBy.

partitionOn("storeId") should be called before the write operation.

The format("parquet") expression should be removed and instead, the information should be added to the write expression like so: write("parquet").