Re: bytea and text

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От Jean-Yves F. Barbier
Тема Re: bytea and text
Дата
Msg-id 4B1069FF.70508@gmail.com
обсуждение исходный текст
Ответ на Re: bytea and text  (richard terry <rterry@pacific.net.au>)
Список pgsql-novice
richard terry a écrit :
...
> tom, I wonder if you could give us a sample of using client side lo_creat ,
> insert  functions to insert a blob into postgres - in an sql statement.
>
> Despite reading the docs's I'm totally in the dark and can't understand the
> syntax.

Hi Richard, I modified the functions I sent you: they now store into
BINARY (BYTEA) format, not anymore into BASE64:

CREATE OR REPLACE FUNCTION ucommon.testbytea_ins(Pstring TEXT) RETURNS oid AS $$
DECLARE
        NewId      OID;
        NewBytea   BYTEA;
BEGIN
        NewBytea = decode(Pstring, 'base64');
        INSERT INTO common.testbytea VALUES(default, NewBytea);
        SELECT id INTO NewId FROM common.testbytea WHERE id = (SELECT currval('testbytea_id_seq'));
        RETURN NewId;
END;
$$ LANGUAGE PLPGSQL STRICT SECURITY DEFINER;
REVOKE ALL ON FUNCTION ucommon.testbytea_ins(TEXT) FROM PUBLIC;
---------------------------------------------------
CREATE OR REPLACE FUNCTION ucommon.testbytea_sel(Pid OID) RETURNS TEXT AS $$
DECLARE
        MyPic       BYTEA;
        MyString    TEXT;
BEGIN
        SELECT pic INTO MyPic FROM common.testbytea WHERE id = Pid;
        MyString = encode(MyPic, 'base64');
        RETURN MyString;
END;
$$ LANGUAGE PLPGSQL STRICT SECURITY DEFINER;
REVOKE ALL ON FUNCTION ucommon.testbytea_sel(OID) FROM PUBLIC;

HIWH

JY
--
Objects in mirror may be closer than they appear.

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