Made rdb_read_visitor_t::extract_event_log not depend on ql_env lifetime.
Made rdb_read_visitor_t::extract_event_log not depend on ql_env lifetime.

wkennington/rethinkdb,wkennington/rethinkdb,lenstr/rethinkdb,victorbriz/rethinkdb,tempbottle/rethinkdb,lenstr/rethinkdb,greyhwndz/rethinkdb,spblightadv/rethinkdb,JackieXie168/rethinkdb,lenstr/rethinkdb,RubenKelevra/rethinkdb,4talesa/rethinkdb,scripni/rethinkdb,losywee/rethinkdb,captainpete/rethinkdb,sebadiaz/rethinkdb,jmptrader/rethinkdb,mbroadst/rethinkdb,jmptrader/rethinkdb,catroot/rethinkdb,rrampage/rethinkdb,victorbriz/rethinkdb,RubenKelevra/rethinkdb,dparnell/rethinkdb,sontek/rethinkdb,dparnell/rethinkdb,pap/rethinkdb,losywee/rethinkdb,wkennington/rethinkdb,alash3al/rethinkdb,mcanthony/rethinkdb,elkingtonmcb/rethinkdb,Wilbeibi/rethinkdb,sbusso/rethinkdb,urandu/rethinkdb,AntouanK/rethinkdb,grandquista/rethinkdb,mbroadst/rethinkdb,eliangidoni/rethinkdb,bchavez/rethinkdb,dparnell/rethinkdb,4talesa/rethinkdb,JackieXie168/rethinkdb,mbroadst/rethinkdb,Wilbeibi/rethinkdb,losywee/rethinkdb,niieani/rethinkdb,catroot/rethinkdb,gdi2290/rethinkdb,ajose01/rethinkdb,spblightadv/rethinkdb,marshall007/rethinkdb,scripni/rethinkdb,wojons/rethinkdb,Qinusty/rethinkdb,gavioto/rethinkdb,mquandalle/rethinkdb,mcanthony/rethinkdb,lenstr/rethinkdb,sbusso/rethinkdb,spblightadv/rethinkdb,sontek/rethinkdb,RubenKelevra/rethinkdb,AntouanK/rethinkdb,greyhwndz/rethinkdb,eliangidoni/rethinkdb,sontek/rethinkdb,elkingtonmcb/rethinkdb,gavioto/rethinkdb,Wilbeibi/rethinkdb,ajose01/rethinkdb,JackieXie168/rethinkdb,wojons/rethinkdb,wujf/rethinkdb,greyhwndz/rethinkdb,Qinusty/rethinkdb,wkennington/rethinkdb,KSanthanam/rethinkdb,RubenKelevra/rethinkdb,4talesa/rethinkdb,robertjpayne/rethinkdb,RubenKelevra/rethinkdb,alash3al/rethinkdb,grandquista/rethinkdb,rrampage/rethinkdb,sbusso/rethinkdb,mcanthony/rethinkdb,yaolinz/rethinkdb,ajose01/rethinkdb,matthaywardwebdesign/rethinkdb,greyhwndz/rethinkdb,yakovenkodenis/rethinkdb,pap/rethinkdb,gdi2290/rethinkdb,bchavez/rethinkdb,gavioto/rethinkdb,marshall007/rethinkdb,catroot/rethinkdb,catroot/rethinkdb,yaolinz/rethinkdb,alash3al/rethinkdb,losywee/rethinkdb,dparnell/rethinkdb,yakovenkodenis/rethinkdb,yakovenkodenis/rethinkdb,grandquista/rethinkdb,matthaywardwebdesign/rethinkdb,yakovenkodenis/rethinkdb,bpradipt/rethinkdb,marshall007/rethinkdb,grandquista/rethinkdb,dparnell/rethinkdb,wkennington/rethinkdb,matthaywardwebdesign/rethinkdb,grandquista/rethinkdb,robertjpayne/rethinkdb,Qinusty/rethinkdb,KSanthanam/rethinkdb,alash3al/rethinkdb,ayumilong/rethinkdb,pap/rethinkdb,tempbottle/rethinkdb,elkingtonmcb/rethinkdb,mcanthony/rethinkdb,wujf/rethinkdb,wujf/rethinkdb,pap/rethinkdb,dparnell/rethinkdb,gavioto/rethinkdb,mbroadst/rethinkdb,greyhwndz/rethinkdb,mbroadst/rethinkdb,greyhwndz/rethinkdb,wojons/rethinkdb,victorbriz/rethinkdb,mquandalle/rethinkdb,catroot/rethinkdb,mquandalle/rethinkdb,sebadiaz/rethinkdb,AntouanK/rethinkdb,RubenKelevra/rethinkdb,eliangidoni/rethinkdb,niieani/rethinkdb,wojons/rethinkdb,matthaywardwebdesign/rethinkdb,yaolinz/rethinkdb,alash3al/rethinkdb,rrampage/rethinkdb,4talesa/rethinkdb,sontek/rethinkdb,eliangidoni/rethinkdb,mquandalle/rethinkdb,matthaywardwebdesign/rethinkdb,jmptrader/rethinkdb,bpradipt/rethinkdb,eliangidoni/rethinkdb,yaolinz/rethinkdb,ajose01/rethinkdb,victorbriz/rethinkdb,urandu/rethinkdb,bpradipt/rethinkdb,grandquista/rethinkdb,tempbottle/rethinkdb,ayumilong/rethinkdb,matthaywardwebdesign/rethinkdb,lenstr/rethinkdb,sbusso/rethinkdb,AntouanK/rethinkdb,ayumilong/rethinkdb,dparnell/rethinkdb,Wilbeibi/rethinkdb,Qinusty/rethinkdb,4talesa/rethinkdb,Qinusty/rethinkdb,scripni/rethinkdb,lenstr/rethinkdb,Wilbeibi/rethinkdb,JackieXie168/rethinkdb,bchavez/rethinkdb,wojons/rethinkdb,KSanthanam/rethinkdb,sebadiaz/rethinkdb,gavioto/rethinkdb,ajose01/rethinkdb,urandu/rethinkdb,mcanthony/rethinkdb,robertjpayne/rethinkdb,elkingtonmcb/rethinkdb,gdi2290/rethinkdb,4talesa/rethinkdb,rrampage/rethinkdb,bchavez/rethinkdb,mquandalle/rethinkdb,ayumilong/rethinkdb,jmptrader/rethinkdb,bpradipt/rethinkdb,bpradipt/rethinkdb,wojons/rethinkdb,urandu/rethinkdb,wujf/rethinkdb,KSanthanam/rethinkdb,elkingtonmcb/rethinkdb,captainpete/rethinkdb,gdi2290/rethinkdb,marshall007/rethinkdb,AntouanK/rethinkdb,rrampage/rethinkdb,yaolinz/rethinkdb,jmptrader/rethinkdb,scripni/rethinkdb,yaolinz/rethinkdb,Wilbeibi/rethinkdb,victorbriz/rethinkdb,urandu/rethinkdb,sbusso/rethinkdb,wojons/rethinkdb,captainpete/rethinkdb,tempbottle/rethinkdb,4talesa/rethinkdb,robertjpayne/rethinkdb,AntouanK/rethinkdb,jesseditson/rethinkdb,jmptrader/rethinkdb,marshall007/rethinkdb,grandquista/rethinkdb,mquandalle/rethinkdb,sebadiaz/rethinkdb,wkennington/rethinkdb,elkingtonmcb/rethinkdb,Wilbeibi/rethinkdb,robertjpayne/rethinkdb,scripni/rethinkdb,dparnell/rethinkdb,4talesa/rethinkdb,spblightadv/rethinkdb,AntouanK/rethinkdb,pap/rethinkdb,gavioto/rethinkdb,sontek/rethinkdb,marshall007/rethinkdb,scripni/rethinkdb,matthaywardwebdesign/rethinkdb,greyhwndz/rethinkdb,AntouanK/rethinkdb,mbroadst/rethinkdb,JackieXie168/rethinkdb,yakovenkodenis/rethinkdb,niieani/rethinkdb,marshall007/rethinkdb,pap/rethinkdb,rrampage/rethinkdb,RubenKelevra/rethinkdb,niiea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