Improve the documentation of the 'join_collapse_limit' GUC var. Thanks to Tom Lane for some editorial suggestions.
Improve the documentation of the 'join_collapse_limit' GUC var. Thanks to
Tom Lane for some editorial suggestions.

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