When i impdp a big talbe bsis's expdpfile with brtools and action option was 'replace', the table data was succesfully imported. But when next process the index~0. the error was occurred . The oracle alert log was that " _highthreshold_undoretention is set lower than low threshold retention. Rectify this for high threshold retention to be honored". In this situation, what shoud i do.? How could i continue the impdp job? Please give me a guide. Thank you!