Add SGML ID attributes to the arrays subsections, and a few index entries for them.
Add SGML ID attributes to the arrays subsections, and a few index entries for
them.

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