how can i get all corporate action including the list & delist corporate action by eikon api (list/delist date)
df, err = ek.get_data(['ZKP.NH^J18'],[ 'TR.CAMarketAdjustmentFactor(SDate=20010101, EDate=20180101,CAEventType=All)', 'TR.CAAnnouncementDate(SDate=20010101, EDate=20180101,CAEventType=All)', 'TR.CACorpActDesc(SDate=20010101, EDate=20180101,CAEventType=All)', 'TR.CACorpActEventType(SDate=20010101, EDate=20180101,CAEventType=All)' ])
i call this function and get little data, but get full data by opearting by client search.