Truncating a table while it is being accessed by a query

This is a follow-up to a question that I posted some time ago.  

The environment was Oracle 8.1.7.4 running on Solaris.

- We had a data warehouse with an ETL process which ran every hour and took 
long enough that it ran constantly.  

- Some of the ETL steps were truncating tables. 

- Reports were failing intermittently with Ora-1410 (invalid rowid).

Through analysis of trace files I was able to demonstrate that the Ora-1410 
errors only occurred when one of the tables being accessed by the report query 
was truncated while the query was running.

Now my question is:  Shouldn't Oracle be preventing the truncate operation 
while another process was querying the table?
If not, isn't this a bug?

Thanks,
Peter Schauss
--
http://www.freelists.org/webpage/oracle-l

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