"Transaction too long", but no logging

Hi, I have the following problem: I want to create an index on a table which contains 25.000.000 rows. The index is of the type "varchar" with a max. length of 60 bytes. Because I got a "transaction too long" error, I turned logging off. Nevertheless I got the same error again (error-no. 458). The statement: isql $DATABASE - <<! CREATE INDEX titel_desk ON titel_worte (desk) IN dbs_4; ! By the way: the creation on an index for a "smallint"-field worked fine for the same table. There also already exists a unique composit Index consisting of the above mentioned varchar "desk" and the a.m. "smallint"-field, which was created when the table was created. There should be enough space for the index in dbs_4 (3GB). The sysmaster-table has "unbuffered logging", but I think that's not important. I use Informix-Onl v7.12, Operating-System is SINIX 5.42 I can't really experiment with this one because of the size of the table (and actually the size of the whole database). Thanks a lot Monika monika.huk@softcon.de