New Contributor
Posts: 1
Registered: ‎12-21-2017

Convert an array of doubles to a string in Impala



I'd like to be able to store an array of doubles in a column, and return these on a row in a select of the table.


So for instance the arrauy could be returned as a string, each element of the array delimited.


My arrays consist of 250+ (to thousands) of elements, so transposing each element onto a row would be very expensive.