In article <[EMAIL PROTECTED]>,
Albe Laurenz <[EMAIL PROTECTED]> wrote:

% >                                     How can I check for the 
% > presence of constraints inside a function?
% 
% select t.oid as tableid, t.relname as tablename,
%       c.oid as constraintid, conname as constraintname
% from pg_constraint c join pg_class t on (c.conrelid = t.oid);

or, perhaps simpler,

 select * from information_schema.table_constraints
  where constraint_type = 'PRIMARY KEY';

-- 

Patrick TJ McPhee
North York  Canada
[EMAIL PROTECTED]

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