The code block shown below contains an error. The code block is intended to return a DataFrame containing a column openDateString, a string representation of Java’s SimpleDateFormat. Identify the error. Note that column openDate is of type integer and represents a date in the UNIX epoch format – the number of seconds since midnight on January 1st, 1970. An example of Java’s SimpleDateFormat is "Sunday, Dec 4, 2008 1:05 PM". A sample of storesDF is displayed below: Code block: storesDF.withColumn("openDateString", from_unixtime(col("openDate"), "EEE, MMM d, yyyy h:mm a", TimestampType()))
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