Re: Please help me to take a look of the erros in my functions. Thanks.

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От leaf_yxj
Тема Re: Please help me to take a look of the erros in my functions. Thanks.
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Msg-id 1333466844759-5615529.post@n5.nabble.com
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Ответ на Re: Re: Please help me to take a look of the erros in my functions. Thanks.  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Re: Please help me to take a look of the erros in my functions. Thanks.
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Tom,

Thanks.  I found out the key issue it. It's because the truncate command
can't have the "cascade".

For the other people reference. The right funcitons are :

***********************************************************

CREATE OR REPLACE FUNCTION truncate_t (IN tablename text)
RETURNS VOID
AS
$$
BEGIN
        EXECUTE 'TRUNCATE TABLE ' || quote_ident(tablename) || ';';
EXCEPTION
        WHEN undefined_table THEN
                RAISE EXCEPTION 'Table "%" does not exists', tablename;
END;
$$
LANGUAGE plpgsql SECURITY DEFINER STRICT;

***********************************************************

***********************************************************

CREATE OR REPLACE FUNCTION truncate_t (tablename text)
RETURNS VOID
AS
$$
BEGIN
        EXECUTE 'TRUNCATE TABLE ' || quote_ident(tablename) || ';';
EXCEPTION
        WHEN undefined_table THEN
                RAISE EXCEPTION 'Table "%" does not exists', tablename;
END;
$$
LANGUAGE plpgsql SECURITY DEFINER STRICT;

***********************************************************


usage : select truncate_t ('aaa');


Thanks everybody's help.

Regards.

Grace

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