Come to think of it, DropBuffers() could have the same problem as ReleaseRelationBuffers --- need to wait if anyone is trying to flush out that buffer.
Come to think of it, DropBuffers() could have the same problem as
ReleaseRelationBuffers --- need to wait if anyone is trying to flush
out that buffer.

oberstet/postgres-xl,Quikling/gpdb,foyzur/gpdb,adam8157/gpdb,techdragon/Postgres-XL,CraigHarris/gpdb,foyzur/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,rubikloud/gpdb,atris/gpdb,chrishajas/gpdb,zeroae/postgres-xl,ahachete/gpdb,postmind-net/postgres-xl,50wu/gpdb,cjcjameson/gpdb,zaksoup/gpdb,snaga/postgres-xl,Postgres-XL/Postgres-XL,atris/gpdb,tangp3/gpdb,lisakowen/gpdb,lisakowen/gpdb,oberstet/postgres-xl,lintzc/gpdb,Postgres-XL/Postgres-XL,lintzc/gpdb,arcivanov/postgres-xl,kmjungersen/PostgresXL,Chibin/gpdb,xuegang/gpdb,tangp3/gpdb,0x0FFF/gpdb,foyzur/gpdb,Quikling/gpdb,rubikloud/gpdb,jmcatamney/gpdb,xuegang/gpdb,Chibin/gpdb,kaknikhil/gpdb,kmjungersen/PostgresXL,0x0FFF/gpdb,janebeckman/gpdb,tpostgres-projects/tPostgres,50wu/gpdb,edespino/gpdb,0x0FFF/gpdb,rubikloud/gpdb,50wu/gpdb,zaksoup/gpdb,yuanzhao/gpdb,50wu/gpdb,zaksoup/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,kaknikhil/gpdb,lpetrov-pivotal/gpdb,randomtask1155/gpdb,randomtask1155/gpdb,cjcjameson/gpdb,cjcjameson/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,zeroae/postgres-xl,randomtask1155/gpdb,pavanvd/postgres-xl,CraigHarris/gpdb,oberstet/postgres-xl,arcivanov/postgres-xl,kaknikhil/gpdb,edespino/gpdb,lisakowen/gpdb,royc1/gpdb,postmind-net/postgres-xl,jmcatamney/gpdb,rvs/gpdb,xinzweb/gpdb,ovr/postgres-xl,cjcjameson/gpdb,tangp3/gpdb,0x0FFF/gpdb,tangp3/gpdb,postmind-net/postgres-xl,xuegang/gpdb,janebeckman/gpdb,chrishajas/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,Quikling/gpdb,Chibin/gpdb,lisakowen/gpdb,greenplum-db/gpdb,adam8157/gpdb,Quikling/gpdb,foyzur/gpdb,pavanvd/postgres-xl,oberstet/postgres-xl,tangp3/gpdb,atris/gpdb,cjcjameson/gpdb,Quikling/gpdb,xinzweb/gpdb,techdragon/Postgres-XL,CraigHarris/gpdb,arcivanov/postgres-xl,randomtask1155/gpdb,zaksoup/gpdb,chrishajas/gpdb,cjcjameson/gpdb,ovr/postgres-xl,foyzur/gpdb,janebeckman/gpdb,ashwinstar/gpdb,edespino/gpdb,lintzc/gpdb,tangp3/gpdb,janebeckman/gpdb,janebeckman/gpdb,rubikloud/gpdb,greenplum-db/gpdb,zaksoup/gpdb,50wu/gpdb,xinzweb/gpdb,pavanvd/postgres-xl,rvs/gpdb,yuanzhao/gpdb,snaga/postgres-xl,ashwinstar/gpdb,snaga/postgres-xl,yuanzhao/gpdb,rvs/gpdb,Chibin/gpdb,lintzc/gpdb,edespino/gpdb,xinzweb/gpdb,lpetrov-pivotal/gpdb,lisakowen/gpdb,xuegang/gpdb,atris/gpdb,atris/gpdb,techdragon/Postgres-XL,randomtask1155/gpdb,kmjungersen/PostgresXL,ahachete/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,snaga/postgres-xl,adam8157/gpdb,cjcjameson/gpdb,edespino/gpdb,0x0FFF/gpdb,janebeckman/gpdb,lpetrov-pivotal/gpdb,50wu/gpdb,lisakowen/gpdb,ahachete/gpdb,zeroae/postgres-xl,edespino/gpdb,kaknikhil/gpdb,foyzur/gpdb,0x0FFF/gpdb,ashwinstar/gpdb,0x0FFF/gpdb,chrishajas/gpdb,50wu/gpdb,ovr/postgres-xl,zaksoup/gpdb,adam8157/gpdb,rvs/gpdb,CraigHarris/gpdb,Quikling/gpdb,rvs/gpdb,Quikling/gpdb,yazun/postgres-xl,lisakowen/gpdb,Chibin/gpdb,atris/gpdb,lpetrov-pivotal/gpdb,Postgres-XL/Postgres-XL,chrishajas/gpdb,CraigHarris/gpdb,ahachete/gpdb,kaknikhil/gpdb,pavanvd/postgres-xl,50wu/gpdb,rubikloud/gpdb,kmjungersen/PostgresXL,tangp3/gpdb,lpetrov-pivotal/gpdb,yuanzhao/gpdb,xinzweb/gpdb,CraigHarris/gpdb,ahachete/gpdb,jmcatamney/gpdb,Chibin/gpdb,lpetrov-pivotal/gpdb,janebeckman/gpdb,arcivanov/postgres-xl,adam8157/gpdb,postmind-net/postgres-xl,lintzc/gpdb,chrishajas/gpdb,jmcatamney/gpdb,lintzc/gpdb,ovr/postgres-xl,yuanzhao/gpdb,foyzur/gpdb,yazun/postgres-xl,jmcatamney/gpdb,tpostgres-projects/tPostgres,0x0FFF/gpdb,chrishajas/gpdb,tpostgres-projects/tPostgres,Postgres-XL/Postgres-XL,jmcatamney/gpdb,lisakowen/gpdb,rubikloud/gpdb,rvs/gpdb,greenplum-db/gpdb,rubikloud/gpdb,royc1/gpdb,snaga/postgres-xl,xuegang/gpdb,yazun/postgres-xl,techdragon/Postgres-XL,rvs/gpdb,arcivanov/postgres-xl,tpostgres-projects/tPostgres,kaknikhil/gpdb,zeroae/postgres-xl,tangp3/gpdb,Chibin/gpdb,rvs/gpdb,cjcjameson/gpdb,lpetrov-pivotal/gpdb,greenplum-db/gpdb,CraigHarris/gpdb,kaknikhil/gpdb,xuegang/gpdb,royc1/gpdb,adam8157/gpdb,jmcatamney/gpdb,tpostgres-projects/tPostgres,adam8157/gpdb,kmjungersen/PostgresXL,ashwinstar/gpdb,kaknikhil/gpdb,CraigHarris/gpdb,ahachete/gpdb,yazun/postgres-xl,xinzweb/gpdb,royc1/gpdb,xinzweb/gpdb,chrishajas/gpdb,Quikling/gpdb,edespino/gpdb,xuegang/gpdb,oberstet/postgres-xl,yuanzhao/gpdb,arcivanov/postgres-xl,CraigHarris/gpdb,ahachete/gpdb,postmind-net/postgres-xl,royc1/gpdb,rvs/gpdb,cjcjameson/gpdb,Chibin/gpdb,Chibin/gpdb,randomtask1155/gpdb,jmcatamney/gpdb,randomtask1155/gpdb,zaksoup/gpdb,Quikling/gpdb,pavanvd/postgres-xl,royc1/gpdb,edespino/gpdb,ashwinstar/gpdb,zeroae/postgres-xl,lintzc/gpdb,yazun/postgres-xl,janebeckman/gpdb,randomtask1155/gpdb,xinzweb/gpdb,xuegang/gpdb,foyzur/gpdb,edespino/gpdb,techdragon/Postgres-XL,lpetrov-pivotal/gpdb,Postgres-XL/Postgres-XL,edespino/gpdb,ashwinstar/gpdb,ovr/postgres-xl,rvs/gpdb,ashwinstar/gpdb,janebeckman/gpdb,yuanzhao/gpdb,Chibin/gpdb,royc1/gpdb,xuegang/gpdb,lintzc/gpdb,greenplum-db/gpdb,zaksoup/gpdb,Quikling/gpdb,royc1/gpdb,adam8157/gpdb,janebeckman/gpdb,ahachete/gpdb,lintzc/gpdb,atris/gpdb,rubikloud/gpdb,atris/gpdb