Actually, that was not the help I needed, because when I am editing a script, the sample size setting is not available in the drawer.
What I am trying to do: I have a dataset with one column of JSON data, where I want to expand the different items in the JSON data into separate rows. However, when I try to apply the "fold array" operation, dataIku runs out of memory before the sample is processed - and when editing the script, I cannot change the sample size!
While I can run the script anyway, it then produces tons of errors. Without a way to change the sample size, I cannot find out what is wrong in the preview.
BTW, the same operation works fine on a different data set from the same source - the only difference is that now (when it don't work), the origin of the data set comes from a set of partitioned files, while when it worked, the data set was from just a single file from the same set.