Thom Brown writes:
> Hmmm... curiously, lazy (non-greedy) quantifiers are stable, such as: ((a))*?
I've found it. The triggering conditions are (1) more than one set of
capturing parens in a substring() pattern, and (2) at least one trial
midpoint failing in ccondissect() or one of its siblings.
Robert Haas writes:
> On Thu, May 24, 2012 at 10:16 AM, Marko Kreen wrote:
>> Following query crashes backend on 9.2:
>>
>> select substring('asd TO foo' from ' TO (([a-z0-9._]+|"([^"]+|"")+")+)');
> I spent some time trying to reduce this to the simplest case that
> still causes a crash, and
On 24 May 2012 16:24, Thom Brown wrote:
> On 24 May 2012 16:08, Robert Haas wrote:
>> On Thu, May 24, 2012 at 10:16 AM, Marko Kreen wrote:
>>> Following query crashes backend on 9.2:
>>>
>>> select substring('asd TO foo' from ' TO (([a-z0-9._]+|"([^"]+|"")+")+)');
>>
>> I spent some time trying
On 24 May 2012 16:08, Robert Haas wrote:
> On Thu, May 24, 2012 at 10:16 AM, Marko Kreen wrote:
>> Following query crashes backend on 9.2:
>>
>> select substring('asd TO foo' from ' TO (([a-z0-9._]+|"([^"]+|"")+")+)');
>
> I spent some time trying to reduce this to the simplest case that
> still
On Thu, May 24, 2012 at 10:16 AM, Marko Kreen wrote:
> Following query crashes backend on 9.2:
>
> select substring('asd TO foo' from ' TO (([a-z0-9._]+|"([^"]+|"")+")+)');
I spent some time trying to reduce this to the simplest case that
still causes a crash, and came up with this:
select subs
Following query crashes backend on 9.2:
select substring('asd TO foo' from ' TO (([a-z0-9._]+|"([^"]+|"")+")+)');
It is supposed to load potentially quoted table name from
CREATE RULE definition. Works fine on 8.3 .. 9.1
Backtrace:
Program terminated with signal 11, Segmentation fault.
#0 Ex
