Update comments.
Update comments.

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