Done:
Done:

> * -Order duplicate index entries on creation by tid for faster heap lookups

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