Fix misstatement about the required value of SEMVMX.  Given our current usage of PGSemaMagic, the minimum required value is actually 537, but say 1000 just to use a round number.  255 is *not* good enough.
Fix misstatement about the required value of SEMVMX.  Given our current
usage of PGSemaMagic, the minimum required value is actually 537, but
say 1000 just to use a round number.  255 is *not* good enough.

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