Fix memory leak in rtdosplit, per report from Clive Page.
Fix memory leak in rtdosplit, per report from Clive Page.

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