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As part of Table Designing, Data Engineer added a timestamp column that inserts the current timestamp as the default value as records are loaded into a table. The intent is to capture the time when eachrecord was loaded into the table; however, the timestamps are earlier than the LOAD_TIME column values returned by COPY_HISTORY view (Account Usage). What could be reason of this issue?
Correct Answer: D
Explanation The reason timestamps are earlier than the LOAD_TIME column values which is returned by COPY_HISTORY view (Account Usage) is that CURRENT_TIMESTAMP is evaluated when the load operation is compiled in cloud services rather than when the record is inserted into the table (i.e. when the transaction for the load operation is committed).