{ }

Within command syntax, curly braces group related command options. Do not type the curly braces.

FROM { 'filename' | STDIN }

[ ]

Within command syntax, square brackets denote optional arguments. Do not type the brackets.

TRUNCATE [ TABLE ] name

...

Within command syntax, an ellipsis denotes repetition of a command, variable, or option. Do not type the ellipsis.

DROP TABLE name [, ...]

|

Within command syntax, the pipe symbol denotes an "OR" relationship. Do not type the pipe symbol.

VACUUM [ FULL | FREEZE ]

$ system_command

# root_system_command

=> gpdb_command

=# su_gpdb_command

Denotes a command prompt - do not type the prompt symbol. $ and # denote terminal command prompts. => and =# denote Greenplum Database interactive program command prompts (psql or gpssh, for example).

$ createdb mydatabase

# chown gpadmin -R /datadir

=> SELECT * FROM mytable;

=# SELECT * FROM pg_database;