Removed comparison of unsigned expression < 0.
Removed comparison of unsigned expression < 0.

chrishajas/gpdb,lintzc/gpdb,Chibin/gpdb,xinzweb/gpdb,xinzweb/gpdb,50wu/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,yuanzhao/gpdb,Chibin/gpdb,ashwinstar/gpdb,Chibin/gpdb,rvs/gpdb,Quikling/gpdb,adam8157/gpdb,xinzweb/gpdb,chrishajas/gpdb,CraigHarris/gpdb,lintzc/gpdb,xuegang/gpdb,xuegang/gpdb,0x0FFF/gpdb,royc1/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,ashwinstar/gpdb,Chibin/gpdb,jmcatamney/gpdb,CraigHarris/gpdb,xuegang/gpdb,royc1/gpdb,greenplum-db/gpdb,xuegang/gpdb,edespino/gpdb,janebeckman/gpdb,chrishajas/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,rvs/gpdb,50wu/gpdb,0x0FFF/gpdb,xinzweb/gpdb,royc1/gpdb,Quikling/gpdb,ashwinstar/gpdb,xuegang/gpdb,edespino/gpdb,jmcatamney/gpdb,lintzc/gpdb,Chibin/gpdb,0x0FFF/gpdb,edespino/gpdb,greenplum-db/gpdb,cjcjameson/gpdb,jmcatamney/gpdb,kaknikhil/gpdb,Quikling/gpdb,royc1/gpdb,Quikling/gpdb,cjcjameson/gpdb,CraigHarris/gpdb,Chibin/gpdb,cjcjameson/gpdb,lintzc/gpdb,lintzc/gpdb,rvs/gpdb,chrishajas/gpdb,edespino/gpdb,0x0FFF/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,lisakowen/gpdb,50wu/gpdb,xinzweb/gpdb,janebeckman/gpdb,50wu/gpdb,lintzc/gpdb,xinzweb/gpdb,50wu/gpdb,yuanzhao/gpdb,Chibin/gpdb,Quikling/gpdb,ashwinstar/gpdb,lisakowen/gpdb,50wu/gpdb,ashwinstar/gpdb,0x0FFF/gpdb,yuanzhao/gpdb,Chibin/gpdb,kaknikhil/gpdb,CraigHarris/gpdb,janebeckman/gpdb,chrishajas/gpdb,greenplum-db/gpdb,rvs/gpdb,rvs/gpdb,Quikling/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,edespino/gpdb,janebeckman/gpdb,cjcjameson/gpdb,Quikling/gpdb,kaknikhil/gpdb,jmcatamney/gpdb,lintzc/gpdb,xuegang/gpdb,kaknikhil/gpdb,greenplum-db/gpdb,adam8157/gpdb,lisakowen/gpdb,cjcjameson/gpdb,Chibin/gpdb,CraigHarris/gpdb,CraigHarris/gpdb,edespino/gpdb,jmcatamney/gpdb,royc1/gpdb,edespino/gpdb,janebeckman/gpdb,0x0FFF/gpdb,lisakowen/gpdb,CraigHarris/gpdb,janebeckman/gpdb,adam8157/gpdb,jmcatamney/gpdb,edespino/gpdb,cjcjameson/gpdb,janebeckman/gpdb,adam8157/gpdb,lisakowen/gpdb,adam8157/gpdb,lintzc/gpdb,janebeckman/gpdb,Quikling/gpdb,royc1/gpdb,0x0FFF/gpdb,xuegang/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,janebeckman/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,chrishajas/gpdb,kaknikhil/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,adam8157/gpdb,yuanzhao/gpdb,chrishajas/gpdb,yuanzhao/gpdb,rvs/gpdb,xinzweb/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,lintzc/gpdb,lisakowen/gpdb,50wu/gpdb,0x0FFF/gpdb,Quikling/gpdb,edespino/gpdb,jmcatamney/gpdb,xinzweb/gpdb,yuanzhao/gpdb,royc1/gpdb,adam8157/gpdb,janebeckman/gpdb,greenplum-db/gpdb,rvs/gpdb,edespino/gpdb,chrishajas/gpdb,rvs/gpdb,50wu/gpdb,adam8157/gpdb,ashwinstar/gpdb,lisakowen/gpdb,lisakowen/gpdb,Chibin/gpdb,xuegang/gpdb,kaknikhil/gpdb,rvs/gpdb,Quikling/gpdb,CraigHarris/gpdb,xuegang/gpdb,royc1/gpdb,CraigHarris/gpdb,rvs/gpdb