Fix description of SQL-standard meaning of CREATE LOCAL TEMP TABLE.
Fix description of SQL-standard meaning of CREATE LOCAL TEMP TABLE.

I had this slightly wrong, as noted by Noah Misch.

postmind-net/postgres-xl,kmjungersen/PostgresXL,jmcatamney/gpdb,adam8157/gpdb,greenplum-db/gpdb,xinzweb/gpdb,snaga/postgres-xl,xinzweb/gpdb,50wu/gpdb,yazun/postgres-xl,zeroae/postgres-xl,postmind-net/postgres-xl,yazun/postgres-xl,jmcatamney/gpdb,50wu/gpdb,greenplum-db/gpdb,lisakowen/gpdb,pavanvd/postgres-xl,ashwinstar/gpdb,pavanvd/postgres-xl,xinzweb/gpdb,adam8157/gpdb,jmcatamney/gpdb,arcivanov/postgres-xl,techdragon/Postgres-XL,greenplum-db/gpdb,oberstet/postgres-xl,xinzweb/gpdb,adam8157/gpdb,zeroae/postgres-xl,postmind-net/postgres-xl,adam8157/gpdb,50wu/gpdb,arcivanov/postgres-xl,kmjungersen/PostgresXL,xinzweb/gpdb,zeroae/postgres-xl,arcivanov/postgres-xl,Postgres-XL/Postgres-XL,ovr/postgres-xl,techdragon/Postgres-XL,zeroae/postgres-xl,kmjungersen/PostgresXL,snaga/postgres-xl,pavanvd/postgres-xl,jmcatamney/gpdb,pavanvd/postgres-xl,ovr/postgres-xl,techdragon/Postgres-XL,lisakowen/gpdb,Postgres-XL/Postgres-XL,xinzweb/gpdb,arcivanov/postgres-xl,kmjungersen/PostgresXL,snaga/postgres-xl,ovr/postgres-xl,ashwinstar/gpdb,ovr/postgres-xl,lisakowen/gpdb,greenplum-db/gpdb,50wu/gpdb,oberstet/postgres-xl,ovr/postgres-xl,snaga/postgres-xl,xinzweb/gpdb,techdragon/Postgres-XL,greenplum-db/gpdb,50wu/gpdb,ashwinstar/gpdb,jmcatamney/gpdb,arcivanov/postgres-xl,lisakowen/gpdb,ashwinstar/gpdb,yazun/postgres-xl,snaga/postgres-xl,kmjungersen/PostgresXL,techdragon/Postgres-XL,ashwinstar/gpdb,pavanvd/postgres-xl,lisakowen/gpdb,yazun/postgres-xl,50wu/gpdb,ashwinstar/gpdb,jmcatamney/gpdb,Postgres-XL/Postgres-XL,adam8157/gpdb,ashwinstar/gpdb,oberstet/postgres-xl,adam8157/gpdb,jmcatamney/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,adam8157/gpdb,arcivanov/postgres-xl,ashwinstar/gpdb,Postgres-XL/Postgres-XL,50wu/gpdb,lisakowen/gpdb,xinzweb/gpdb,lisakowen/gpdb,postmind-net/postgres-xl,oberstet/postgres-xl,adam8157/gpdb,lisakowen/gpdb,Postgres-XL/Postgres-XL,greenplum-db/gpdb,zeroae/postgres-xl,greenplum-db/gpdb,50wu/gpdb,yazun/postgres-xl,oberstet/postgres-xl,postmind-net/postgres-xl