Re: Starnge things with big datas... - Mailing list pgsql-general

From Guillaume Lelarge
Subject Re: Starnge things with big datas...
Date
Msg-id 1335020080.2322.13.camel@localhost.localdomain
Whole thread Raw
In response to Starnge things with big datas...  ("F. BROUARD / SQLpro" <sqlpro@club-internet.fr>)
List pgsql-general
On Sat, 2012-04-21 at 16:17 +0200, F. BROUARD / SQLpro wrote:
> Hi there,
>
> "PostgreSQL 9.1.2, compiled by Visual C++ build 1500, 64-bit"
> catalog version : PG_9.1_201105231
>
> --> the table :
>
> CREATE  TABLE T_TEST_TAILLE
> (TTT_ID            SERIAL NOT NULL PRIMARY KEY,
>   TTT_DATAFIX       CHAR(16),
>   TTT_DATAVAR       VARCHAR(16),
>   TTT_DATAVARBIG    VARCHAR(6000));
>
> --> the inserts :
>
> INSERT INTO T_TEST_TAILLE (TTT_DATAFIX, TTT_DATAVAR, TTT_DATAVARBIG)
>             SELECT     NULL, NULL, NULL
> UNION ALL  SELECT '', '', ''
> UNION ALL  SELECT '12345678', '12345678', REPEAT('*', 3000)
> UNION ALL  SELECT '1234567890123456', '1234567890123456',
>                    REPEAT('*', 6000)
>
> --> the query
>
> SELECT *, pg_column_size(TTT_DATAFIX),
>            char_length(TTT_DATAFIX),
>            octet_length(TTT_DATAFIX),
>            pg_column_size(TTT_DATAVAR),
>            char_length(TTT_DATAVAR),
>            octet_length(TTT_DATAFIX),
>            pg_column_size(TTT_DATAVARBIG),
>            char_length(TTT_DATAVARBIG),
>            octet_length(TTT_DATAFIX)
> FROM   T_TEST_TAILLE;
>
> !!! PROBLEM !!!
>
> --> at this time the 4th row show nothing in ttt_datavarbig column...
> it is supposed to retrive the long '********************* ... '
> 6000 characters !
>
> What happened ?
>

Let me guess. You used pgAdmin, right? The widget pgAdmin uses on its
query tool doesn't allow us to show really big values. Sometimes, it
just doesn't display the cell at all. Kinda lame, and I hope I'll be
able to fix this one day.

Try with psql as Andreas told you, you'll see your long value.


--
Guillaume
http://blog.guillaume.lelarge.info
http://www.dalibo.com


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