Fix unixware thread test.
Fix unixware thread test.

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