Bump optimizer version to 1.622
Bump optimizer version to 1.622

janebeckman/gpdb,Chibin/gpdb,atris/gpdb,zaksoup/gpdb,janebeckman/gpdb,Chibin/gpdb,kaknikhil/gpdb,lpetrov-pivotal/gpdb,chrishajas/gpdb,greenplum-db/gpdb,CraigHarris/gpdb,xinzweb/gpdb,cjcjameson/gpdb,foyzur/gpdb,rubikloud/gpdb,kaknikhil/gpdb,lpetrov-pivotal/gpdb,rubikloud/gpdb,lpetrov-pivotal/gpdb,edespino/gpdb,zaksoup/gpdb,chrishajas/gpdb,CraigHarris/gpdb,jmcatamney/gpdb,Chibin/gpdb,ashwinstar/gpdb,edespino/gpdb,adam8157/gpdb,50wu/gpdb,ahachete/gpdb,xuegang/gpdb,kaknikhil/gpdb,lpetrov-pivotal/gpdb,kaknikhil/gpdb,lisakowen/gpdb,zaksoup/gpdb,zaksoup/gpdb,foyzur/gpdb,royc1/gpdb,janebeckman/gpdb,ashwinstar/gpdb,xuegang/gpdb,jmcatamney/gpdb,rvs/gpdb,tangp3/gpdb,janebeckman/gpdb,0x0FFF/gpdb,lisakowen/gpdb,xinzweb/gpdb,ahachete/gpdb,edespino/gpdb,adam8157/gpdb,jmcatamney/gpdb,rubikloud/gpdb,edespino/gpdb,chrishajas/gpdb,ahachete/gpdb,royc1/gpdb,50wu/gpdb,chrishajas/gpdb,0x0FFF/gpdb,kaknikhil/gpdb,randomtask1155/gpdb,royc1/gpdb,jmcatamney/gpdb,yuanzhao/gpdb,0x0FFF/gpdb,randomtask1155/gpdb,kaknikhil/gpdb,royc1/gpdb,adam8157/gpdb,adam8157/gpdb,ahachete/gpdb,randomtask1155/gpdb,CraigHarris/gpdb,xinzweb/gpdb,lintzc/gpdb,CraigHarris/gpdb,cjcjameson/gpdb,kaknikhil/gpdb,janebeckman/gpdb,lisakowen/gpdb,edespino/gpdb,rubikloud/gpdb,zaksoup/gpdb,CraigHarris/gpdb,Quikling/gpdb,lintzc/gpdb,foyzur/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,cjcjameson/gpdb,greenplum-db/gpdb,lpetrov-pivotal/gpdb,Quikling/gpdb,foyzur/gpdb,adam8157/gpdb,ahachete/gpdb,50wu/gpdb,rubikloud/gpdb,0x0FFF/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,tangp3/gpdb,0x0FFF/gpdb,jmcatamney/gpdb,50wu/gpdb,edespino/gpdb,lintzc/gpdb,xinzweb/gpdb,xuegang/gpdb,greenplum-db/gpdb,50wu/gpdb,Quikling/gpdb,foyzur/gpdb,adam8157/gpdb,royc1/gpdb,xinzweb/gpdb,rvs/gpdb,yuanzhao/gpdb,tangp3/gpdb,jmcatamney/gpdb,Quikling/gpdb,greenplum-db/gpdb,atris/gpdb,rvs/gpdb,randomtask1155/gpdb,lpetrov-pivotal/gpdb,Quikling/gpdb,edespino/gpdb,randomtask1155/gpdb,ashwinstar/gpdb,0x0FFF/gpdb,janebeckman/gpdb,adam8157/gpdb,Chibin/gpdb,Chibin/gpdb,greenplum-db/gpdb,zaksoup/gpdb,randomtask1155/gpdb,greenplum-db/gpdb,Chibin/gpdb,xinzweb/gpdb,rvs/gpdb,rubikloud/gpdb,lintzc/gpdb,lpetrov-pivotal/gpdb,foyzur/gpdb,adam8157/gpdb,ahachete/gpdb,ahachete/gpdb,cjcjameson/gpdb,yuanzhao/gpdb,chrishajas/gpdb,chrishajas/gpdb,ashwinstar/gpdb,xuegang/gpdb,edespino/gpdb,Quikling/gpdb,xuegang/gpdb,edespino/gpdb,yuanzhao/gpdb,randomtask1155/gpdb,atris/gpdb,lpetrov-pivotal/gpdb,lisakowen/gpdb,50wu/gpdb,chrishajas/gpdb,xuegang/gpdb,lisakowen/gpdb,ashwinstar/gpdb,foyzur/gpdb,lintzc/gpdb,jmcatamney/gpdb,Chibin/gpdb,CraigHarris/gpdb,Quikling/gpdb,tangp3/gpdb,cjcjameson/gpdb,lintzc/gpdb,zaksoup/gpdb,kaknikhil/gpdb,tangp3/gpdb,lintzc/gpdb,atris/gpdb,tangp3/gpdb,atris/gpdb,kaknikhil/gpdb,yuanzhao/gpdb,xinzweb/gpdb,rubikloud/gpdb,janebeckman/gpdb,yuanzhao/gpdb,Chibin/gpdb,xuegang/gpdb,janebeckman/gpdb,ahachete/gpdb,cjcjameson/gpdb,rvs/gpdb,janebeckman/gpdb,tangp3/gpdb,0x0FFF/gpdb,rvs/gpdb,royc1/gpdb,edespino/gpdb,atris/gpdb,janebeckman/gpdb,kaknikhil/gpdb,zaksoup/gpdb,chrishajas/gpdb,Quikling/gpdb,Chibin/gpdb,Quikling/gpdb,CraigHarris/gpdb,rvs/gpdb,foyzur/gpdb,lisakowen/gpdb,royc1/gpdb,royc1/gpdb,50wu/gpdb,0x0FFF/gpdb,randomtask1155/gpdb,lisakowen/gpdb,rvs/gpdb,rvs/gpdb,CraigHarris/gpdb,rubikloud/gpdb,lisakowen/gpdb,atris/gpdb,greenplum-db/gpdb,CraigHarris/gpdb,lintzc/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,50wu/gpdb,xinzweb/gpdb,jmcatamney/gpdb,Quikling/gpdb,yuanzhao/gpdb,rvs/gpdb,cjcjameson/gpdb,yuanzhao/gpdb,atris/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,Chibin/gpdb,lintzc/gpdb,xuegang/gpdb,yuanzhao/gpdb,tangp3/gpdb,xuegang/gpdb