Fix failure when uniq-ifying an array of zero elements.
Fix failure when uniq-ifying an array of zero elements.

Teodor Sigaev

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