Do a more complete job of supporting time zone information. Try to save pre-existing TZ environment variable if possible. Includes code from Keith Parks.
Do a more complete job of supporting time zone information.
Try to save pre-existing TZ environment variable if possible.
Includes code from Keith Parks.

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