In x-match I select the RA and DEC columns from my uploaded csv file in MyDB but I get the error when matching with a Datalab table "column o.ra does not exist"

Question

I have a csv file and I want to match objects from this file to a file in Datalab. I am using the Astro Data Lab - Xmatch web interface. The interface requires me to indicate the RA, DEC columns and I do - they are recognized by the interface. But then, the query fails:  "column o.ra does not exist". I do not even understand what the "o" stands for (my file is named "bulsan").

Answer 1

I wasn't able to reproduce your error with my example CSV file. Do you mind sending the first few lines of your CSV file? Also, which table did you choose to crossmatch with?