From: Vladislav Shpilevoy <v.shpilevoy@tarantool.org>
To: Nikita Pettik <korablev@tarantool.org>
Cc: tarantool-patches@dev.tarantool.org
Subject: Re: [Tarantool-patches] [PATCH 2/6] sql: fix possible null dereference in sql_expr_coll()
Date: Fri, 6 Dec 2019 00:59:29 +0100 [thread overview]
Message-ID: <23fe796e-4ea5-0438-78d6-ed9f1faafc89@tarantool.org> (raw)
In-Reply-To: <20191205114007.GA47637@tarantool.org>
On 05/12/2019 12:40, Nikita Pettik wrote:
> On 28 Nov 23:42, Vladislav Shpilevoy wrote:
>> Thanks for the patch!
>>
>> Is it possible to test this?
>
> As a pure test case - I've failed to come up with it.
> But the next patch (which adds collation to metadata) definitely fails
> without this fix (when TRIM() or REPLACE() are called without args).
Why does not it fail right after finding that there are no
arguments? TRIM looks strange, but REPLACE expects 3 arguments.
> I can dive into details, but I guess it's not so important here (since
> this is obviously buggy place).
Is it? As I pointed above, maybe the bug is really in another
place? I see, that REPLACE checks argument count. But somewhy
too late:
tarantool> box.execute('SELECT REPLACE()')
---
- null
- 'Wrong number of arguments is passed to REPLACE(): expected 3, got 0'
...
> If you want further investigation, let me
> know and I will do it.
Yeah. I think we need to understand the bug before fixing
it.
next prev parent reply other threads:[~2019-12-05 23:59 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-27 12:15 [Tarantool-patches] [PATCH 0/6] sql: extend response metadata Nikita Pettik
2019-11-27 12:15 ` [Tarantool-patches] [PATCH 1/6] sql: refactor resulting set metadata Nikita Pettik
2019-11-28 22:41 ` Vladislav Shpilevoy
2019-12-05 11:39 ` Nikita Pettik
2019-12-05 23:58 ` Vladislav Shpilevoy
2019-12-06 12:48 ` Nikita Pettik
2019-12-17 13:23 ` Sergey Ostanevich
2019-11-27 12:15 ` [Tarantool-patches] [PATCH 2/6] sql: fix possible null dereference in sql_expr_coll() Nikita Pettik
2019-11-28 22:42 ` Vladislav Shpilevoy
2019-12-05 11:40 ` Nikita Pettik
2019-12-05 23:59 ` Vladislav Shpilevoy [this message]
2019-12-06 12:48 ` Nikita Pettik
2019-12-17 13:30 ` Sergey Ostanevich
2019-12-17 14:44 ` Nikita Pettik
2019-12-17 19:53 ` Nikita Pettik
2019-11-27 12:15 ` [Tarantool-patches] [PATCH 3/6] sql: extend result set with collation Nikita Pettik
2019-11-28 22:41 ` Vladislav Shpilevoy
2019-12-05 11:50 ` Nikita Pettik
2019-12-18 11:08 ` Sergey Ostanevich
2019-12-24 0:44 ` Nikita Pettik
2019-11-27 12:15 ` [Tarantool-patches] [PATCH 4/6] sql: extend result set with nullability Nikita Pettik
2019-11-28 22:41 ` Vladislav Shpilevoy
2019-12-05 11:50 ` Nikita Pettik
2019-12-06 0:00 ` Vladislav Shpilevoy
2019-12-06 12:49 ` Nikita Pettik
2019-12-18 13:31 ` Sergey Ostanevich
2019-11-27 12:15 ` [Tarantool-patches] [PATCH 5/6] sql: extend result set with autoincrement Nikita Pettik
2019-11-28 22:41 ` Vladislav Shpilevoy
2019-12-05 11:51 ` Nikita Pettik
2019-12-18 15:17 ` Sergey Ostanevich
2019-12-24 0:47 ` Nikita Pettik
2019-11-27 12:15 ` [Tarantool-patches] [PATCH 6/6] sql: extend result set with alias Nikita Pettik
2019-11-28 22:41 ` Vladislav Shpilevoy
2019-12-05 11:51 ` Nikita Pettik
2019-12-06 0:02 ` Vladislav Shpilevoy
2019-12-06 12:50 ` Nikita Pettik
2019-12-06 21:52 ` Vladislav Shpilevoy
2019-12-19 15:17 ` Sergey Ostanevich
2019-12-24 0:27 ` Nikita Pettik
2019-11-28 22:55 ` [Tarantool-patches] [PATCH 0/6] sql: extend response metadata Vladislav Shpilevoy
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