cursor loop and continue statement : unexpected behaviour - plsql

Question

I might be overlooking something due to deadline stress. But this behaviour amazes me.
It looks as if the cursor caches 100 rows and the continue statement flushes the cache
and begins with the first record of a new cache fetch.
I narrowed it down to the following script:
drop table test1;
create table test1 (test1_id NUMBER);
begin
for i in 1..300
loop
insert into test1 values (i);
end loop;
end;
/
declare
cursor c_test1 is
select *
from test1;
begin
for c in c_test1
loop
if mod(c.test1_id,10) = 0
then
dbms_output.put_line(c_test1%ROWCOUNT||' '||c.test1_id||' Continue');
continue;
end if;
dbms_output.put_line(c_test1%ROWCOUNT||' '||c.test1_id||' Process');
end loop;
end;
/
1 1 Process
2 2 Process
3 3 Process
4 4 Process
5 5 Process
6 6 Process
7 7 Process
8 8 Process
9 9 Process
10 10 Continue **Where are tes1_id's 11 to 100?**
11 101 Process
12 102 Process
13 103 Process
14 104 Process
15 105 Process
16 106 Process
17 107 Process
18 108 Process
19 109 Process
20 110 Continue **Where are tes1_id's 111 to 200?**
21 201 Process
22 202 Process
23 203 Process
24 204 Process
25 205 Process
26 206 Process
27 207 Process
28 208 Process
29 209 Process
30 210 Continue **Where are tes1_id's 211 to 300?**
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
PL/SQL Release 11.1.0.7.0 - Production
redhat release 5
2 node RAC

Answer 1

It's a bug: 7306422
Pawel Barut wrote:
http://pbarut.blogspot.com/2009/04/caution-for-loop-and-continue-in-oracle.html
Workaround :
SQL> ALTER SESSION SET PLSQL_OPTIMIZE_LEVEL = 1;
Regards,
Rob