SELECT fails to present result rows depending on the columns to show

Hello,

We encounter the following problem in a 13.1 server on Linux:

sisis=# select desk, feldnr from titel_worte where desk = '2' and feldnr = 257;
 desk | feldnr
------+--------
 2    |    257
(1 row)


but:

sisis=# select * from titel_worte where desk = '2' and feldnr = 257;
 desknr | feldnr | desk | deskorg | gesanz | aufanz | katkey1 | katkey2
--------+--------+------+---------+--------+--------+---------+---------
(0 row)

sisis=# select desk, feldnr, deskorg from titel_worte where desk = '2' and feldnr = 257;
 desk | feldnr | deskorg
------+--------+---------
(0 row)

The table was created as:

create table titel_worte (
  desknr  serial    ,
  feldnr SMALLINT   ,
  desk VARCHAR (245)  ,
  deskorg VARCHAR (245)  ,
  gesanz INTEGER   ,
  aufanz INTEGER   ,
  katkey1 INTEGER   ,
  katkey2 INTEGER
 )
 ;

There are no messages in the serverlog when the SELECT fails to show the
row.

What could be the reason for this? Thanks

    matthias
-- 
Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045
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