Clean up sql functions examples.
Clean up sql functions examples.

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