On Fri, Apr 12, 2019 at 9:51 AM Paul Rogers <par0...@yahoo.com.invalid> wrote:
> Hi All, > > The trick here, of course, is that Drill does not have the tuple concept > of Python: > > zip([1, 2, 3], [4, 5, 6]) --> [(1, 4), (2, 5), (3, 6)] > > > There is no good way in Drill, to represent the array of (1, 4), (2, 5) > pairs. The best we can do is: > > * A map of two columns, with element names the same as the original array > columns. > This sounds lovely to me. > ... Also, since functions in Drill are typed, we'd need a "flatten2" > function for all supported combinations of array types (int, int), (int, > Varchar), (Varchar, int), (Varchar, Varchar), etc. > > Seems like there is an opportunity here to provide a better way to handle > these kinds of vector (as in "array") operations. > The current situations is *definitely* a pain in the ass. It would be *lovely* to have a simpler way to build UDFs even at the cost of some performance.
