Add to mmap discussion.
Add to mmap discussion.

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