Top Answers

1. Spark SQL Insert Select with a column list?
   6 votes
2. SQL Server LAG() function to calculate differences between rows
   6 votes
3. Regexp replace solution in hive to mask first 6 characters
   3 votes
4. Why does Hive warn that this subquery would cause a Cartesian product?
   2 votes
5. PostgreSQL reduce rows if values match previous rows
   2 votes