[GENERAL] deferred primary key

Fellow postgresers: According to the web site the following syntax is permitted: PRIMARY KEY clause SQL92 specifies some additional capabilities for PRIMARY KEY: Table Constraint definition: [ CONSTRAINT name ] PRIMARY KEY ( column [, ...] ) [ {INITIALLY DEFERRED | INITIALLY IMMEDIATE} ]

[GENERAL] unique constraint - bug?

All: Run the following script: drop table letter; create table letter ( a char(1), b char(1), c char(1), unique (a, b, c)