Suppress pointer-signedness warning.
Suppress pointer-signedness warning.

Cherry-picked into GPDB ahead of merge to fix compiler warning from
backporting of bytea HEX encode/decode.

janebeckman/gpdb,xinzweb/gpdb,janebeckman/gpdb,50wu/gpdb,janebeckman/gpdb,ashwinstar/gpdb,Chibin/gpdb,kaknikhil/gpdb,ashwinstar/gpdb,edespino/gpdb,greenplum-db/gpdb,cjcjameson/gpdb,cjcjameson/gpdb,Quikling/gpdb,lintzc/gpdb,Chibin/gpdb,greenplum-db/gpdb,cjcjameson/gpdb,yuanzhao/gpdb,adam8157/gpdb,rvs/gpdb,xinzweb/gpdb,janebeckman/gpdb,yuanzhao/gpdb,50wu/gpdb,greenplum-db/gpdb,xinzweb/gpdb,50wu/gpdb,kaknikhil/gpdb,Quikling/gpdb,edespino/gpdb,adam8157/gpdb,Quikling/gpdb,jmcatamney/gpdb,yuanzhao/gpdb,rvs/gpdb,lisakowen/gpdb,adam8157/gpdb,lisakowen/gpdb,lisakowen/gpdb,lintzc/gpdb,jmcatamney/gpdb,Quikling/gpdb,xinzweb/gpdb,rvs/gpdb,greenplum-db/gpdb,lisakowen/gpdb,50wu/gpdb,janebeckman/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,janebeckman/gpdb,lintzc/gpdb,kaknikhil/gpdb,rvs/gpdb,adam8157/gpdb,cjcjameson/gpdb,Chibin/gpdb,lisakowen/gpdb,yuanzhao/gpdb,lintzc/gpdb,Chibin/gpdb,ashwinstar/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,jmcatamney/gpdb,lisakowen/gpdb,kaknikhil/gpdb,adam8157/gpdb,ashwinstar/gpdb,Quikling/gpdb,edespino/gpdb,janebeckman/gpdb,Chibin/gpdb,Chibin/gpdb,kaknikhil/gpdb,50wu/gpdb,kaknikhil/gpdb,jmcatamney/gpdb,rvs/gpdb,lintzc/gpdb,janebeckman/gpdb,edespino/gpdb,50wu/gpdb,yuanzhao/gpdb,xinzweb/gpdb,kaknikhil/gpdb,janebeckman/gpdb,lintzc/gpdb,edespino/gpdb,lintzc/gpdb,xinzweb/gpdb,lintzc/gpdb,jmcatamney/gpdb,rvs/gpdb,Quikling/gpdb,Quikling/gpdb,xinzweb/gpdb,edespino/gpdb,rvs/gpdb,rvs/gpdb,ashwinstar/gpdb,edespino/gpdb,50wu/gpdb,yuanzhao/gpdb,kaknikhil/gpdb,rvs/gpdb,yuanzhao/gpdb,Chibin/gpdb,Quikling/gpdb,Quikling/gpdb,jmcatamney/gpdb,kaknikhil/gpdb,lintzc/gpdb,edespino/gpdb,ashwinstar/gpdb,Quikling/gpdb,edespino/gpdb,ashwinstar/gpdb,jmcatamney/gpdb,xinzweb/gpdb,adam8157/gpdb,Chibin/gpdb,cjcjameson/gpdb,kaknikhil/gpdb,greenplum-db/gpdb,edespino/gpdb,Chibin/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,cjcjameson/gpdb,adam8157/gpdb,adam8157/gpdb,yuanzhao/gpdb,50wu/gpdb,rvs/gpdb,lisakowen/gpdb,yuanzhao/gpdb,lisakowen/gpdb,Chibin/gpdb,greenplum-db/gpdb,janebeckman/gpdb,cjcjameson/gpdb,cjcjameson/gpdb,cjcjameson/gpdb