Why doesn't ON CONFLICT(column_name) accept multiple arguments, i.e., multiple columns One stupid workaround is combining multiple columns into one, with value

Why doesn't ON CONFLICT(column_name) accept multiple arguments, i.e., multiple columns One stupid workaround is combining multiple columns into one, with values separated by a space, for example. This works when each column value is always a string containing no spaces Another stupid workaround, probably slower, might be to hash the multiple columns into a new column and use ON CONFLICT(newcolumn_name)