Mention new =NULL change in Migration section.
Mention new =NULL change in Migration section.

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