mysql on duplicate key update auto_increment
This bug is related to bug #83030. Periodically, the Auto_increment primary key reaches its limit so I reset it. After Mar-Vell was murdered, how come the Tesseract got transported back to her secret laboratory? If you specify an ON DUPLICATE KEY UPDATE clause and a row to be inserted would cause a duplicate value in a UNIQUE index or PRIMARY KEY, an UPDATE of the old row occurs. Late to the party, but I just ran into this tonight - duplicate key '472817' and the provided answers didn't help. Seems like mysql had the row count wrong, and the issue went away. If you specify ON DUPLICATE KEY UPDATE, and a row is inserted that would cause a duplicate value in a UNIQUE index or PRIMARY KEY, MySQL performs an UPDATE of the old row. Isn't key 1 id in this case and having it on auto_increment sufficient for being able to not specify it? What does this example mean? If the table has an AUTO_INCREMENT primary ke… Setup for examples to follow: The only base unsigned integer data type that is able to produced an error when a boundary is reached, is found when type is of BIGINT UNSIGNED. Environment: Red Hat Enterprise Linux Description. @andy - You can't start over without throwing out all the ids. The problem is that REPLACE, when it internally does an UPDATE, does thd->next_insert_id=0, which makes the slave forget the INSERT_ID read from the binlog. And there is no way to get arount this? Making statements based on opinion; back them up with references or personal experience. Prevent auto increment on MySQL duplicate insert. I think you need to get over worrying about gaps. As I informed you before, it is not documented that INSERT IGNORE … XML Word Printable. If the AUTO_INCREMENT column is part of multiple indexes, MySQL generates sequence values using the index that begins with the AUTO_INCREMENT column, if there is one. How does this unsigned exe launch without the windows 10 SmartScreen warning? Log In. percona also reported a similar bug with same root cause in myrocks. When the UTXO in the cache is full, what strategy is used to replace one UTXO with another in the cache? I thought this might be possible using INSERT ... ON DUPLICATE KEY UPDATE..., but LAST_INSERT_ID() seems to be unusable in this case. Would a lobby-like system of self-governing work? ON DUPLICATE KEY+AUTO INCREMENT issue mysql (2) ... Next I did the "ON DUPLICATE KEY UPDATE" version of that sql statement, now this breaks the auto_increment value, but all the updates and inserts we've put in are all perfect auto_incrememnt values. @Josh I see. INSERT ... ON DUPLICATE KEY UPDATE is a MariaDB/MySQL extension to the INSERT statement that, if it finds a duplicate unique or primary key, will instead perform an UPDATE. Mysql - duplicate entry error for key with auto increment, Podcast Episode 299: It’s hard to get hacked worse than this, what dose it mean "the behavior of the auto-increment mechanism is not defined if the value becomes larger than the maximum integer that can be stored, “INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”, Duplicating a MySQL table, indices, and data, MySQL + Rails: errno: 150 “Foreign key constraint is incorrectly formed”, Unhandled rejection SequelizeDatabaseError: Cannot add foreign key constraint, "Because of its negative impacts" or "impact". I understand, but why does the approach work then? INSERT INTO users (user, group) VALUES ('username', 'group') ON DUPLICATE KEY UPDATE username = 'username', group = 'group' autoincrement counts the ID, so now my table is looking as follows: Mixed-mode inserts are basically ones where the maximum number of required AUTO_INCREMENT values is known, but the amount that will actually be needed is not. The manual seems to discourage it though: In general, you should try to avoid using an ON DUPLICATE KEY UPDATE clause on tables with multiple unique indexes. If the string already exists in the table, I'd like to get the AUTO_INCREMENT value of the existing entry. In Multi-master and Clustering environments, auto_increment_increment is set to more than 1 so that the nodes can easily avoid each other. Yes, you're probably right, and it may not always increase. INSERT INTO t1 (a,b,c) VALUES (1,2,3) ON DUPLICATE KEY UPDATE c=c+1; UPDATE t1 SET c=c+1 WHERE a=1; (The effects are not identical for an InnoDB table where a is an auto-increment column. This will INSERT into table_name the specified values, but if the unique key already exists, it will update the other_field_1 to have a new value. Try something like this: INSERT INTO example (id, a, b, c) VALUES (1,1,2,3) ON DUPLICATE KEY UPDATE a = VALUES(a), b = VALUES(b), c = VALUES(c); Now if, the id is duplicate, the row will update. > The duplicate key entry happens when you reach the upper limit of the auto increment field I'm using a table that I update once a month, deleting all existing rows. Hi, I'd like to insert string values into a table. If you must avoid burning ids, you must test before inserting. mysql_insert_id: 1 By using the ON DUPLICATE KEY UPDATE clause, only the old datarow will be modified, if the INSERT statement causes a duplicate entry, but the LAST_INSERT_ID() function returns the next auto_increment value for the primary key, which is by the way not set as the next auto_increment value in the database. It was Tinyint, and MySql want to write a 128th line. As I wrote before, we can do two queries. For details, please look at the repro steps. ON DUPLICATE KEY UPDATE produce gaps on the auto_increment column. Why write "does" instead of "is" "What time does/is the pharmacy open?". Altered the auto_increment value after data was inserted into the table? Manually updating primary key in a row causes subsequent insert to fail / Duplicate entry for key. The "normal" usage of IODKU is to trigger "duplicate key" based on some UNIQUE key, not the AUTO_INCREMENT PRIMARY KEY. If more than one unique index is matched, only the first is updated. For example, if column a is declared as UNIQUE and contains the value 1, the following two statements have similar effect: . Sometimes, when updating on duplicate key it comes in handy to use VALUES() in order to access the original value that was passed to … share | improve this answer | follow | … if one script uses upper case to 'CREATE TABLE my_table' and another script tries to 'INSERT INTO MY_TABLE'. unfortunately neither (1) "Added auto_increment after data was in the table" nor (2) "Altered the auto_increment value after data was inserted into the table?" It produces, ERROR … Recently i saw in my database (InnoDB), that my "ID" column which is set to autoincrement, does count a bit weird. Why don't most people file Chapter 7 every 8 years? Component/s: Data Manipulation - Update. Auto-inc primary keys are not meant to be consecutive, just unique. What does 'levitical' mean in this context? As for why the AUTO_INCREMENT has got out of whack I don't know. That is, you can't set it to 1 or anything else less than MAX(id)+1. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The ON DUPLICATE KEY UPDATE clause can contain multiple column assignments, separated by commas. I thought this might be possible using INSERT ... ON DUPLICATE KEY UPDATE ..., but LAST_INSERT_ID() seems to … Sometimes, your problem you think the bigger you have is only a tiny parameter... You can check the current value of the auto_increment with the following command: Then check the max value of the id and see if it looks right. Note: If I just provide an unused value for id , like INSERT INTO wp_abk_period (id, pricing_id, apartment_id) VALUES (3333333, 13, 27) it works fine, but then again, it is set as auto_increment so I … ON DUPLICATE KEY UPDATE when the inserted columns include NULL in an auto-increment column . I had the same problem and here is my solution : My ID column had a bad parameter. ON DUPLICATE KEY UPDATE is described as a "mixed-mode insert" for the purposes of InnoDB's AUTO_INCREMENT handling. ON DUPLICATE KEY UPDATE executes the UPDATE statement instead of the INSERT statement, LAST_INSERT_ID() gets incremented as if a row was added to the table, even though no such thing happened. thanks! Type: Bug Status: Closed (View Workflow) Priority: Major . Jack McDevitt book where a toy-like spaceship turns out to be real for a small butterfly-like spacefaring race. Making statements based on opinion; back them up with references or personal experience. Live with it. one Billion or so)? With an auto-increment column, an INSERT statement increases the auto-increment value but UPDATE does not.) With ON DUPLICATE KEY UPDATE, the affected-rows value per row is 1 if the row is inserted as a new row and 2 if an existing row is updated. Means, when you have 50 inserts (from 1-50) and you then 4 updates happens, the next value, auto_increment will insert is 55. @RickJames I spend 4-6 hours on this site every day, so I'm inclined to call myself the slave. V-brake pads make contact but don't apply pressure to wheel. What is the difference between an Electron, a Tau, and a Muon? ON DUPLICATE KEY UPDATE statements where some AUTO_INCREMENT values were generated automatically for inserts and some rows were updated, one auto-generated value was lost per updated row, leading to faster exhaustion of the range of the AUTO_INCREMENT column. If you need to check and update according to record id, you have to provide the KEY as well, which in your case is id. For others to know. However, if you specify the ON DUPLICATE KEY UPDATE option in the INSERT statement, MySQL will update the existing row with the new values instead. rev 2020.12.18.38240, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide. What does 'levitical' mean in this context? How to convert specific text from a list into uppercase? Can someone explain me WTF was MySQL doing to produce this weird behavior? Permalink. @TimBiegeleisen - I will dispute the "ever increasing", especially when viewed from a Slave. What is the difference between an Electron, a Tau, and a Muon? Description: The table AUTO_INCREMENT value is not kept in synch between the master and the slave when using INSERT ON DUPLICATE KEY UPDATE. In MySQL 8.0, the current maximum auto-increment value is persisted, preventing the reuse of previously allocated values. Can you expand a bit about what table engine, key type, indexes were you using? How do I see all foreign keys to a table or column? It is not recommended to use this statement on tables with more than one unique index. The INSERT ON DUPLICATE KEY UPDATE is a MySQL’s extension to the SQL standard’s INSERT statement. I'm using an older version of mysql in a dev environment, so I don't assume the engine to work flawless. But let's use ON DUPLICATE KEY UPDATE. Proof for extracerebral origin of thoughts. I created all the tables myself with create statements as above. Hi, If you add another command, mysql> insert into bla1 values (NULL, "Cello3", NULL) on duplicate key update whentime = NOW(); The right ID will be used. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. If not change the auto_increment value of your table. Since last_insert_id() has a connection scope, it's better for you to use : select max(id) from bla1; Mathias Selon Sven Paulus
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