I'm getting an out of memory error when I'm trying to blend two data extracts. The first extract has about 5 M records, the second one has only 10,000. When I drop the pill (tracking ID, which is linked on the secondary data source field tracking ID) I get the out of memory error (screen shot below). I've tried disabling auto updates, but still not working. I've tried dropping in column shelf, level of detail, etc. If I could join two Tableau TDEs outside and bring in that would work, but I don't think that's possible.
So I think I solved this one. Turns out what I was told were primary keys were not even close to primary keys, lots of null and duplicate records. I was creating a massive Cartesian product. Oops....my bad.