Done:
Done:

* -Add a warning when the free space map is too small

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