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Hello all, Are there any pointers for how one would go about implementing foreign keys in the storage engine? I cannot seem to figure it out from...
Zardosht Kasheff
05-11-2012 02:38 AM
Dmitry Lenev Go to last post
4 134
I think that MySQL database is suffers from lacking a proper Audit Functionality. I would like to contribute in a way to enable a better audit...
Aruna Karunarathna
04-18-2012 01:02 PM
Sergei Golubchik Go to last post
8 191
Hello all, Storage engines that support two-phase commit implement the functions handlerton->prepare and handlerton->commit. Clearly, a storage...
Zardosht Kasheff
04-15-2012 03:17 AM
Kristian Nielsen Go to last post
1 144
Hello all, When we run our mysql-test suite with a large number of parallel threads, sometimes we see a crash in TC_LOG_MMAP::unlog: int...
Zardosht Kasheff
04-14-2012 11:36 AM
Sergei Golubchik Go to last post
1 131
Hello all, Is there a way to kill a server in the MySQL test framework? I understand that --shutdown_server num_seconds will shut the server down,...
Zardosht Kasheff
04-09-2012 02:19 PM
MARK CALLAGHAN Go to last post
1 123
Hello all, I am trying to add XA for our storage engine in 5.1.61, and am running into http://bugs.mysql.com/bug.php?id=47134. Does anyone have...
Zardosht Kasheff
04-09-2012 02:16 PM
Sergei Golubchik Go to last post
4 111
Hi, I'm playing with the source of MySQL (5.5) and ran into a problem. Can you please give me a tip. This is what I did: let's take this statement...
04-02-2012 01:14 AM
Stewart Smith Go to last post
1 102
On Tue, 27 Mar 2012 07:22:07 -0700 (PDT), Hiromichi Watari <hiromichiwatari (AT) yahoo (DOT) com> wrote: You may not be knowledgable as to your...
Stewart Smith
03-29-2012 08:04 AM
Hartmut Holzgraefe Go to last post
3 110
Hi, I am an undergraduate student and want to learn about innodb storage engine. I came up with this line in mysql reference manual that...
Kinaan Khan Sherwani
03-27-2012 08:14 PM
Stewart Smith Go to last post
1 101
Hi, I created Parallel Universe which is a MySQL 5.5 compatible server with fast query execution. Speed is achieved by processing tables in parallel...
Hiromichi Watari
03-27-2012 11:59 AM
Razvan Musaloiu-E. Go to last post
1 93
Hi (1) Under what circumstances the have_query_cache can become 'NO'. (2) Is it possible to set it as 'YES'. When I tried to do that I get error...
Revathi Rangachari
03-06-2012 08:38 PM
Yves Trudeau Go to last post
1 125
Hi Can anyone please let me know: (1) if query_cache_type is disabled, will it result in the number of 'Aborted Clients' getting increased. The...
Revathi Rangachari
03-05-2012 12:55 PM
Rick James Go to last post
3 114
Hi (1) If memcache is available - in an apache-php-mysql environment, does enabling or disabling of query_cache_type in mysql configuration, matter...
Revathi Rangachari
02-27-2012 12:03 PM
Rick James Go to last post
3 127
Hello all, What is the expected locking behavior of 'show table status' and the ::info method in the handlerton? I'm observing unlocked access...
John Esmet
02-24-2012 02:16 PM
Sergei Golubchik Go to last post
2 134
The bzr trees on launchpad: lp:mysql-server lp:mysql-server/5.5 lp:mysql-server/5.1 all haven't been updated since the 2nd of January. This is...
Stewart Smith
02-23-2012 07:19 PM
Vladimir Shebordaev Go to last post
5 83
2012/2/17 Björn Boschman <bjoern (AT) boschman (DOT) de>: For completeness, let me also defend Oracle for a change :-) There's also the 3rd...
Henrik Ingo
02-21-2012 05:42 PM
Henrik Ingo Go to last post
1 91
Hello, Please bear with me as this is going to be kind of a long post. I have a query that is like (call it query A): SELECT fieldA, agg(fieldB)...
Stephen Tu
02-21-2012 12:50 PM
Michael Widenius Go to last post
1 95
Many of us in the Free and Open Source software community have seen a trend regarding Oracle's stewardship of Open source software that it inherited...
Clint Byrum
02-17-2012 10:39 AM
Clint Byrum Go to last post
1 91
Hi, Guys When reading innodb code, I'm little confused about the relationship between innodb buffer pool and undo log: From my understanding, in...
Xuekun Hu
02-07-2012 08:44 PM
Xuekun Hu Go to last post
5 93
Hi there, I got a pretty annoying issue with our custom-built mysql server. We are using version 5.1.39 built from source. We have plugged in...
Zhixuan Zhu
01-12-2012 07:10 PM
Stewart Smith Go to last post
1 66
Looking at https://code.launchpad.net/mysql-server, I see that neither trunk, 5.5 or 5.1 trees have been updated since 2011-12-01. It'd be great to...
Stewart Smith
01-03-2012 06:51 PM
Stewart Smith Go to last post
2 61
Hi Guys, I'm looking to modify mysql to allow a storage engine to run optimize table and have other cilents be able to select/insert/etc. where is...
John Esmet
12-29-2011 04:53 PM
Michael Widenius Go to last post
3 69
Hi, I can't link my custom library with cmake (mysql 5.5), has anyone seen this ? I ended up adding the library file into link.txt after cmake...
Hiromichi Watari
12-19-2011 08:58 PM
Hiromichi Watari Go to last post
4 63
Hi, Is it possible for a client connection thread to access 2 tables concurrently from InnoDB, say using a slave thread ? Or is access limited to...
11-23-2011 08:51 AM
Hiromichi Watari Go to last post
11 113
Hi, I was trying to find out what would trigger the counter on Com_empty_query and my two test cases do not trigger it: mysql> SHOW STATUS LIKE...
Derek Downey
10-09-2011 01:20 PM
Eric Bergen Go to last post
1 53
if ((db != NULL) && (db != any_db)) { const ACL_internal_schema_access *access; access= get_cached_schema_access(grant_internal_info, db); if...
Bhagurkar, Salil Arun
09-12-2011 05:43 AM
Sergei Golubchik Go to last post
1 62
Hello All, I am trying to understand the code flow of mysql-5.5.15 mysqld server. 1. I am able to use fprintf(stdout, ..) to print out messages to...
Salil Bhagurkar
09-05-2011 12:12 PM
Thomas Jones-Low Go to last post
2 59
On 08/30/2011 06:21 AM, Kamal O wrote: There is really no automatic resolution. The magic number can be wrong because the file is corrupt, in which...
Mats Kindahl
08-31-2011 03:28 PM
Rick James Go to last post
1 104
Hi, The "OS thread id" section of TRANSACTION output from "SHOW ENGINE INNODB STATUS" appears to have been removed. There was no changelog entry for...
07-09-2011 10:12 AM
ghazel@gmail.com Go to last post
9 56
Hi! I am developing a storage engine for MySQL 5.5. My storage engine is able to perform online index alterations. I would like to prevent MySQL...
Olivier Chédru
06-23-2011 11:59 AM
Sergei Golubchik Go to last post
4 49
Hi, I'm running a regression test (/mysql-test/t/select.test) on 5.5 server (LaunchPad rev 3487) but each time I run the test I get different number...
Hiromichi Watari
06-18-2011 02:16 PM
Hiromichi Watari Go to last post
6 50
Hello all, I am Ashish Bhatt. I wants to look deep inside of mysql. I was just wondering if there is any documentation regarding mysql which could...
Ashish Bhatt
06-05-2011 03:55 PM
Oleg Tsarev Go to last post
1 51
Hello all, Suppose I have a table with NO indexes: create table foo (a int, b int, c int) engine=InnoDB; and then I run: begin; update foo set c=5...
Zardosht Kasheff
05-31-2011 10:49 AM
Karen Abgarian Go to last post
1 55
Hi. Just curious, why do you guys want new authentication plugin that uses sha256 and salt? Was the current (double SHA2) security found flawed? Or...
Sergei Golubchik
05-27-2011 11:06 AM
Sergei Golubchik Go to last post
4 53
Any reason why http://bugs.mysql.com/bug.php?id=56287 is private? Is from last year, so if was security issue certainly shouldn't still...
Stewart Smith
05-27-2011 07:59 AM
Stewart Smith Go to last post
2 62
On 05/09/2011 09:19 AM, Kristian Nielsen wrote: Hmmm... no, not really. Well... the handshake used in 5.6 goes like this: * Slave sends the...
Mats Kindahl
05-13-2011 04:43 AM
Mats Kindahl Go to last post
1 51
In MariaDB, we backported the WL#2540 (binlog checksums) from MySQL 5.6 into MariaDB 5.3. Due to the way WL#2540 is designed, this requires some...
Kristian Nielsen
05-11-2011 05:25 AM
Andrei Elkin Go to last post
2 31
Hi, I'm trying to use thread specific data with mysqld but ran into a problem with my_errno generating Segmentation fault at the following line. I...
Hiromichi Watari
05-04-2011 06:52 AM
Michael Widenius Go to last post
7 48
Hi, I am currently looking at the WL#2540 binlog checksum code in lp:mysql-server. I stumbled upon the following code, which looks strange: static...
Kristian Nielsen
05-03-2011 04:25 AM
Mats Kindahl Go to last post
1 39
Hi, LeeRicky! You can try to add -DHAVE_NDB_BINLOG to the CXXFLAGS and see if that helps. And you can automate it by modifying CXXFLAGS from your...
Sergei Golubchik
04-20-2011 09:18 PM
rickylee86 Go to last post
1 39
Hello all, In 5.1, what is the purpose of the parameter HANDLER_BUFFER *buffer in the function handler::read_multi_range_first? I see that NDB uses...
Zardosht Kasheff
04-20-2011 07:07 AM
Magnus Blåudd Go to last post
1 43
Hi, Kristian! On Apr 18, Kristian Nielsen wrote: I don't believe this will ever happen. I personally wouldn't even bother considering it as an...
Sergei Golubchik
04-19-2011 06:26 AM
Oleksandr Byelkin Go to last post
1 55
Hello all, From within a plug-in, what's the best/correct way to access all the status variables that are visible from 'SHOW GLOBAL STATUS'? I've...
Matthew Boehm
04-19-2011 05:34 AM
Sergei Golubchik Go to last post
3 45
Hi, For merging MySQL into MariaDB, we need to work out what to do about error code. The problem occurs as (different) new error messages are added...
Kristian Nielsen
04-18-2011 05:23 AM
Oleg Tsarev Go to last post
2 53
Hello all, In MySQL 5.1, a storage engine can allow other threads to write to a table while an index (via handler::add_index) is being created. To...
Zardosht Kasheff
04-16-2011 03:46 AM
Zardosht Kasheff Go to last post
1 155
Hello all, Is there a way for the storage engine to get some sort of byte stream that represents a serialized version of a TABLE or TABLE_SHARE...
Zardosht Kasheff
04-07-2011 09:12 PM
Stewart Smith Go to last post
13 82
Hi, I'm trying to use STL container "map" with MySQL server but I'm getting the following link error at the very...
Hiromichi Watari
04-04-2011 06:39 PM
Hiromichi Watari Go to last post
6 82
Hi, Zardosht! On Mar 28, Zardosht Kasheff wrote: I'm afraid not. You can take the generated create table statement, like Stewart suggested, or...
Sergei Golubchik
03-30-2011 09:14 AM
Dmitry Lenev Go to last post
3 50
Hi, In Master-Slave environment, I want to make the slave be a intermediate transit point. The slave pulls relay-log from binlog of the master, and...
Haihao Tang
03-20-2011 10:13 AM
Sergei Golubchik Go to last post
1 51
Hello Jesper, Thank you for this contribution. It's a good idea to add the --thread-id flag to mysqlbinlog. The source patch is well written,...
Sven Sandberg
03-15-2011 12:14 PM
Sven Sandberg Go to last post
1 61
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