Don't mess with HEAP_XMAX_INVALID in heaptuple.c routines; there is no reason to worry about the tuple commit status bits until the tuple is inserted in a relation by heapam.c.  Also, improve comments for heap_addheader().
Don't mess with HEAP_XMAX_INVALID in heaptuple.c routines; there is
no reason to worry about the tuple commit status bits until the tuple
is inserted in a relation by heapam.c.  Also, improve comments for
heap_addheader().

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