Fix for double free from Tatsuo Ishii
Fix for double free from Tatsuo Ishii

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