Add      #include <unistd.h>
Add      #include <unistd.h>

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