JOIN Queries
The CData Excel Add-In for HDFS supports standard SQL joins like the following examples.
Inner Join
An inner join selects only rows from both tables that match the join condition:
SELECT c.Owner, o.OwnerRead, o.OwnerWrite, o.OwnerExecute FROM Files c INNER JOIN Permissions o ON c.FullPath = o.FullPath
Left Join
A left join selects all rows in the FROM table and only matching rows in the JOIN table:
SELECT c.Group, o.GroupRead, o.GroupWrite, o.GroupExecute FROM Files c LEFT JOIN Permissions o ON c.FullPath = o.FullPath