doc: clarify that pg_global can _only_ be used for system tabs.
commit8680bae8463a0b213893ca6a1c5bb2c2530e823c
authorBruce Momjian <bruce@momjian.us>
Mon, 13 Nov 2023 19:53:38 +0000 (13 14:53 -0500)
committerBruce Momjian <bruce@momjian.us>
Mon, 13 Nov 2023 19:53:38 +0000 (13 14:53 -0500)
treeaf5de8dfa1b45bc437cac6de162205af8ffc3c77
parente61a82c949353d9684d037a9a404fbb26b651535
doc:  clarify that pg_global can _only_ be used for system tabs.

Reported-by: zhoushulin1992@gmail.com
Discussion: https://postgr.es/m/160499688847.25495.8682880307938679648@wrigleys.postgresql.org

Backpatch-through: master
doc/src/sgml/manage-ag.sgml