It would make a lot of sense if the UNNEST operator could work on MAP the same way it works on ARRAY (except that it would produce 2 columns rather than 1). Feel free to log a JIRA case for that or for whatever Drill does.
Julian > On May 9, 2016, at 11:56 AM, Johannes Schulte <[email protected]> > wrote: > > Hi! > > Is there a plan for introducing a way to explode the contents of a map, > similar to what hive and drill offer? Currently the only way of accessing > map entries is knowing the exact keys. I looked through the code but did > not find anything for this. Would this be a useful contribution? > > Cheers, > > Johannes
