LeoDeBeo <leodebeo@hotmail.com> writes:
> i don't understand what the curly brace means after PRIMARY KEY (where is
> the other matching brace?
Typo. Try more recent versions of the docs. 7.1 says
CREATE [ TEMPORARY | TEMP ] TABLE table_name ( { column_name type [ column_constraint [ ... ] ] |
table_constraint} [, ... ] ) [ INHERITS ( inherited_table [, ... ] ) ]
where column_constraint can be:
[ CONSTRAINT constraint_name ]
{ NOT NULL | NULL | UNIQUE | PRIMARY KEY | DEFAULT value | CHECK (condition) | REFERENCES table [ ( column ) ] [ MATCH
FULL| MATCH PARTIAL ] [ ON DELETE action ] [ ON UPDATE action ] [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED
|INITIALLY IMMEDIATE ]
}
and table_constraint can be:
[ CONSTRAINT constraint_name ]
{ UNIQUE ( column_name [, ... ] ) | PRIMARY KEY ( column_name [, ... ] ) | CHECK ( condition ) | FOREIGN KEY (
column_name[, ... ] ) REFERENCES table [ ( column [, ... ] ) ] [ MATCH FULL | MATCH PARTIAL ] [ ON DELETE action ] [
ONUPDATE action ] [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
}
The curly braces are just for grouping in cases where it'd not be clear
how far the alternatives are supposed to extend.
regards, tom lane
