cuckoo_table_db_test.cc: add flush after delete
cuckoo_table_db_test.cc: add flush after delete

It seems that a FlushMemTable() call is needed in the
Uint64Comparator test after call Delete(). Otherwise the later
via Put() added keys get lost with the next FlushMemTable()
call before the check.

Signed-off-by: Danny Al-Gaaf <473e39ac77cf392f0dd9bacde8409de76c14d006@bisect.de>

siddhartharay007/rocksdb,Andymic/rocksdb,geraldoandradee/rocksdb,jalexanderqed/rocksdb,wskplho/rocksdb,JackLian/rocksdb,makelivedotnet/rocksdb,fengshao0907/rocksdb,amyvmiwei/rocksdb,ylong/rocksdb,JohnPJenkins/rocksdb,bbiao/rocksdb,virtdb/rocksdb,JohnPJenkins/rocksdb,flabby/rocksdb,NickCis/rocksdb,wenduo/rocksdb,mbarbon/rocksdb,wat-ze-hex/rocksdb,siddhartharay007/rocksdb,SunguckLee/RocksDB,ryneli/rocksdb,luckywhu/rocksdb,RyanTech/rocksdb,mbarbon/rocksdb,tsheasha/rocksdb,Vaisman/rocksdb,wat-ze-hex/rocksdb,NickCis/rocksdb,zhangpng/rocksdb,alihalabyah/rocksdb,vashstorm/rocksdb,wskplho/rocksdb,kaschaeffer/rocksdb,siddhartharay007/rocksdb,skunkwerks/rocksdb,makelivedotnet/rocksdb,Vaisman/rocksdb,amyvmiwei/rocksdb,OverlordQ/rocksdb,tsheasha/rocksdb,ylong/rocksdb,facebook/rocksdb,JohnPJenkins/rocksdb,kaschaeffer/rocksdb,ryneli/rocksdb,fengshao0907/rocksdb,wat-ze-hex/rocksdb,JackLian/rocksdb,bbiao/rocksdb,wlqGit/rocksdb,wenduo/rocksdb,wlqGit/rocksdb,RyanTech/rocksdb,lgscofield/rocksdb,anagav/rocksdb,geraldoandradee/rocksdb,zhangpng/rocksdb,Andymic/rocksdb,tizzybec/rocksdb,wlqGit/rocksdb,JohnPJenkins/rocksdb,wenduo/rocksdb,biddyweb/rocksdb,rDSN-Projects/rocksdb.replicated,skunkwerks/rocksdb,alihalabyah/rocksdb,virtdb/rocksdb,facebook/rocksdb,zhangpng/rocksdb,tsheasha/rocksdb,sorphi/rocksdb,vashstorm/rocksdb,hobinyoon/rocksdb,wenduo/rocksdb,flabby/rocksdb,jalexanderqed/rocksdb,Andymic/rocksdb,SunguckLee/RocksDB,vmx/rocksdb,wenduo/rocksdb,temicai/rocksdb,vashstorm/rocksdb,vmx/rocksdb,wat-ze-hex/rocksdb,hobinyoon/rocksdb,skunkwerks/rocksdb,OverlordQ/rocksdb,norton/rocksdb,dkorolev/rocksdb,wat-ze-hex/rocksdb,siddhartharay007/rocksdb,geraldoandradee/rocksdb,norton/rocksdb,RyanTech/rocksdb,amyvmiwei/rocksdb,dkorolev/rocksdb,wskplho/rocksdb,vashstorm/rocksdb,kaschaeffer/rocksdb,caijieming-baidu/rocksdb,temicai/rocksdb,rDSN-Projects/rocksdb.replicated,anagav/rocksdb,zhangpng/rocksdb,ryneli/rocksdb,wenduo/rocksdb,hobinyoon/rocksdb,anagav/rocksdb,JoeWoo/rocksdb,dkorolev/rocksdb,rDSN-Projects/rocksdb.replicated,makelivedotnet/rocksdb,bbiao/rocksdb,rDSN-Projects/rocksdb.replicated,JoeWoo/rocksdb,JackLian/rocksdb,NickCis/rocksdb,fengshao0907/rocksdb,dkorolev/rocksdb,Applied-Duality/rocksdb,facebook/rocksdb,fengshao0907/rocksdb,NickCis/rocksdb,jalexanderqed/rocksdb,zhangpng/rocksdb,hobinyoon/rocksdb,alihalabyah/rocksdb,Vaisman/rocksdb,virtdb/rocksdb,anagav/rocksdb,tsheasha/rocksdb,caijieming-baidu/rocksdb,zhangpng/rocksdb,norton/rocksdb,OverlordQ/rocksdb,tizzybec/rocksdb,luckywhu/rocksdb,NickCis/rocksdb,kaschaeffer/rocksdb,temicai/rocksdb,virtdb/rocksdb,caijieming-baidu/rocksdb,amyvmiwei/rocksdb,ryneli/rocksdb,anagav/rocksdb,ylong/rocksdb,sorphi/rocksdb,vmx/rocksdb,geraldoandradee/rocksdb,fengshao0907/rocksdb,wlqGit/rocksdb,RyanTech/rocksdb,hobinyoon/rocksdb,JackLian/rocksdb,lgscofield/rocksdb,wlqGit/rocksdb,luckywhu/rocksdb,SunguckLee/RocksDB,makelivedotnet/rocksdb,alihalabyah/rocksdb,JackLian/rocksdb,SunguckLee/RocksDB,IMCG/RcoksDB,ryneli/rocksdb,Vaisman/rocksdb,lgscofield/rocksdb,Applied-Duality/rocksdb,biddyweb/rocksdb,caijieming-baidu/rocksdb,luckywhu/rocksdb,facebook/rocksdb,siddhartharay007/rocksdb,facebook/rocksdb,Andymic/rocksdb,JoeWoo/rocksdb,norton/rocksdb,caijieming-baidu/rocksdb,mbarbon/rocksdb,hobinyoon/rocksdb,alihalabyah/rocksdb,vashstorm/rocksdb,skunkwerks/rocksdb,JoeWoo/rocksdb,RyanTech/rocksdb,dkorolev/rocksdb,wenduo/rocksdb,NickCis/rocksdb,norton/rocksdb,alihalabyah/rocksdb,geraldoandradee/rocksdb,norton/rocksdb,sorphi/rocksdb,lgscofield/rocksdb,fengshao0907/rocksdb,tizzybec/rocksdb,rDSN-Projects/rocksdb.replicated,ylong/rocksdb,mbarbon/rocksdb,tsheasha/rocksdb,rDSN-Projects/rocksdb.replicated,Applied-Duality/rocksdb,bbiao/rocksdb,ylong/rocksdb,tizzybec/rocksdb,Vaisman/rocksdb,tizzybec/rocksdb,caijieming-baidu/rocksdb,Vaisman/rocksdb,fengshao0907/rocksdb,temicai/rocksdb,norton/rocksdb,JackLian/rocksdb,dkorolev/rocksdb,amyvmiwei/rocksdb,RyanTech/rocksdb,Applied-Duality/rocksdb,alihalabyah/rocksdb,mbarbon/rocksdb,flabby/rocksdb,tizzybec/rocksdb,ryneli/rocksdb,wat-ze-hex/rocksdb,jalexanderqed/rocksdb,RyanTech/rocksdb,facebook/rocksdb,dkorolev/rocksdb,vmx/rocksdb,OverlordQ/rocksdb,biddyweb/rocksdb,IMCG/RcoksDB,lgscofield/rocksdb,lgscofield/rocksdb,OverlordQ/rocksdb,Vaisman/rocksdb,JackLian/rocksdb,zhangpng/rocksdb,bbiao/rocksdb,facebook/rocksdb,wat-ze-hex/rocksdb,anagav/rocksdb,kaschaeffer/rocksdb,wskplho/rocksdb,makelivedotnet/rocksdb,mbarbon/rocksdb,virtdb/rocksdb,temicai/rocksdb,siddhartharay007/rocksdb,virtdb/rocksdb,Applied-Duality/rocksdb,temicai/rocksdb,siddhartharay007/rocksdb,SunguckLee/RocksDB,luckywhu/rocksdb,JoeWoo/rocksdb,tsheasha/rocksdb,OverlordQ/rocksdb,flabby/rocksdb,sorphi/rocksdb,facebook/rocksdb,flabby/rocksdb,SunguckLee/RocksDB,bbiao/rocksdb,biddyweb/rocksdb,vmx/rocksdb,wenduo/rocksdb,vmx/rocksdb,biddyweb/rocksdb,vashstorm/rocksdb,SunguckLee/RocksDB,sorphi/rocksdb,JohnPJenkins/rocksdb,ryneli/rocksdb,flabby/rocksdb,jalexanderqed/rocksdb,hobinyoon/rocksdb,IMCG/RcoksDB,rDSN-Projects/rocksdb.replic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