How vacuum template0，vacuumtemplate0

How vacuum template0，vacuumtemplate0

[pg@h1 ~]$ vacuumdb --freeze template0vacuumdb: could not connect to database template0: FATAL:  database "template0" is not currently accepting connections[pg@h1 ~]$ psql template0psql: FATAL:  database "template0" is not currently accepting connections[pg@h1 ~]$ PGOPTIONS='-c gp_session_role=utility' psql template1psql (8.2.15)Type "help" for help. template1=# set allow_system_table_mods='DML';SETtemplate1=# update pg_database set datallowconn='t' where datname='template0';UPDATE 1template1=# \c template0You are now connected to database "template0" as user "pg".template0=# vacuum freeze ;VACUUMtemplate0=# \q[pg@h1 ~]$ PGOPTIONS='-c gp_session_role=utility' psql template1psql (8.2.15)Type "help" for help. template1=# set allow_system_table_mods='DML';SETtemplate1=# update pg_database set datallowconn='f' where datname='template0';UPDATE 1

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