Обсуждение: Temporary and permanent tables with same name
Greetings,
I've been doing some temporary tables and I created one with the same name of a permanent table. Maybe you should avoid temporary tablem creation for this case.
Best regards.
bxs=# CREATE TABLE test (x INT4);
CREATE
bxs=# SELECT CAST('45 SECONDS' AS INTERVAL) INTO TEMP test;
SELECT
bxs=# SELECT * FROM test;
?column?
----------
00:00:45
(1 row)
CREATE
bxs=# SELECT CAST('45 SECONDS' AS INTERVAL) INTO TEMP test;
SELECT
bxs=# SELECT * FROM test;
?column?
----------
00:00:45
(1 row)
bxs=# \d test
Table "test"
Attribute | Type | Modifier
-----------+---------+----------
x | integer |
Table "test"
Attribute | Type | Modifier
-----------+---------+----------
x | integer |
bxs=# INSERT INTO test VALUES (1);
ERROR: Attribute '?column?' is of type 'interval' but expression is of type 'int4'
You will need to rewrite or cast the expression
ERROR: Attribute '?column?' is of type 'interval' but expression is of type 'int4'
You will need to rewrite or cast the expression
--------------------------------------------------------------------------------
José Vilson de Mello de Farias
Software Engineer
José Vilson de Mello de Farias
Software Engineer
Dígitro Tecnologia Ltda - www.digitro.com.br
APC - Customer Oriented Applications
E-mail: vilson.farias@digitro.com.br
Tel.: +55 48 281 7158
ICQ 11866179
APC - Customer Oriented Applications
E-mail: vilson.farias@digitro.com.br
Tel.: +55 48 281 7158
ICQ 11866179
"Vilson farias" <vilson.farias@digitro.com.br> writes:
> I've been doing some temporary tables and I created one with the same nam=
> e of a permanent table. Maybe you should avoid temporary tablem creation fo=
> r this case.=20
That's generally considered a feature, not a bug.
regards, tom lane
On Wed, 5 Feb 2003, Vilson farias wrote:
> I've been doing some temporary tables and I created one with the
> same name of a permanent table. Maybe you should avoid temporary
> tablem creation for this case.
> ...
>
> bxs=# CREATE TABLE test (x INT4);
> CREATE
> bxs=# SELECT CAST('45 SECONDS' AS INTERVAL) INTO TEMP test;
Yes, this is a great feature, isn't it? I use it all the time for creating
a copy of a table local to a connection and running various tests on it.
Then it just vanishes when I disconnect.
cjs
--
Curt Sampson <cjs@cynic.net> +81 90 7737 2974 http://www.netbsd.org
Don't you know, in this new Dark Age, we're all light. --XTC