I just migrated to CQRLog from Xlog, and I'm loving the power of this tool. After import, I realized that my adif file had reversed the RST values, so that the valued I'd reported out was in the column for values coming in. No problem:
UPDATE view_cqrlog_main_by_qsodate SET rst_r=rst_s, rst_s=@temp WHERE (@temp:=rst_r) IS NOT NULL;
and all of my RST values were swapped. I would have had to have to swap the values for each QSO using my old logging program. Very pleased.