It Worked!
\o/ I have no idea why the medians ran without problem this morning, but they did. Despite this, I’m moving forward on some data pruning to make the dataset smaller and more relevant. Then plan is that the raw price table will have all prices reported more than a month ago removed and possibly include the ability to get medians on a shorter timeline than that (i.e., get the medians for only the last 7 days).