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* How To Get Bytea Data Instead Of Its Oid
@ 2002-09-19 14:11 CN LIOU <cnliou@graffiti.net>
2002-09-19 16:46 ` Re: How To Get Bytea Data Instead Of Its Oid Tom Lane <tgl@sss.pgh.pa.us>
0 siblings, 1 reply; 2+ messages in thread
From: CN LIOU @ 2002-09-19 14:11 UTC (permalink / raw)
To: pgsql-sql
Greetings!
I must have missed lesson 1 of postgresql!
create table test (c1 text,c2 bytea);
Then, I probably have successfullyi nserted several records into test using C++Builder. Now I am trying to retrieve back the binary data in c2 I just inserted. However, the SQL statement issued by both C++Builder and psql:
SELECT * FROM test LIMIT 1
returns, I guess, the OID of c2 instead of the binary data to which the OID points.
What is the correct SQL syntax for C++Builder for bytea?
Regards,
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* Re: How To Get Bytea Data Instead Of Its Oid
2002-09-19 14:11 How To Get Bytea Data Instead Of Its Oid CN LIOU <cnliou@graffiti.net>
@ 2002-09-19 16:46 ` Tom Lane <tgl@sss.pgh.pa.us>
0 siblings, 0 replies; 2+ messages in thread
From: Tom Lane @ 2002-09-19 16:46 UTC (permalink / raw)
To: CN LIOU <cnliou@graffiti.net>; +Cc: pgsql-sql
"CN LIOU" <cnliou@graffiti.net> writes:
> SELECT * FROM test LIMIT 1
> returns, I guess, the OID of c2 instead of the binary data to which the OID points.
I don't think so...
regression=# create table test (c1 text,c2 bytea);
CREATE TABLE
regression=# insert into test values ('some text', 'some binary data \\000\\001');
INSERT 284058 1
regression=# select * from test;
c1 | c2
-----------+---------------------------
some text | some binary data \000\001
(1 row)
I see no OID here.
Perhaps you should show us an example of what you are doing, rather than
your interpretation of what's going wrong.
regards, tom lane
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2002-09-19 14:11 How To Get Bytea Data Instead Of Its Oid CN LIOU <cnliou@graffiti.net>
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