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Questions tagged [mariadb-10.2]

MariaDB 10.2 was released as stable (GA) with version 10.2.6 on 23 May 2017. Please also tag with mariadb for search purposes.

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Fulltext search in a CTE result - missing fulltext index

My question applies to MariaDB 10.2.7 The query WITH prefiltered AS ( SELECT id, fulltext_indexed_column FROM fulltext_table WHERE id < 30 ) SELECT * FROM prefiltered WHERE MATCH(...
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1answer
26 views

MariaDB 10.2.22 Galera Cluster Using Bad Indexes After Analyze

I'm using Drupal on a MariaDB Galera 10.2.22 3 node cluster and I'm having some problems with one query. I have a table (InnoDB) called field_data_field_department which has a bunch of indexes. If I ...
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1answer
42 views

MariaDB “ERROR 1034 (HY000) at line 41: Index for table 'xyz' is corrupt” on importing dump

10.2.12-MariaDB-log MariaDB Server I have 3 databases: prod, test and dev for this app. This is on an AWS RDS. The databases are on separate instances. I am doing an upgrade to the db schema and ...
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MariaDB 10.2 crash on innodb table corruption - trying to restore the database

I'm running MariaDB 10.2 on Windows and had some hard drive corruption on my server that messed up some innodb tables. Unfortunately this also affected backups, so I'm trying to dump the tables and ...
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21 views

Is it possible to get the keys from Vault for MariaDB Data-at-rest Encryption

We are doing a POC on MariaDB Data- at-rest Encryption using File_key_Management_plugin. In order to encrypt the tables this plugin reads a file that contains key and we need to pass the path of the ...
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1answer
22 views

perform non locking select when updating another table

We need to perform the following (periodic) query in mariadb: update A set status='INACTIVE' where status='ACTIVE' and a.b_id in (select id from B where ... LOCK IN SHARE MODE); Unfortunately it ...
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1answer
65 views

Prepared statement too slow

have an issue with MariaDB 10.2.12 running in aws rds (single master, no slave) when I run prepared statement using a variable substitution PREPARE stmt1 FROM "select ...quite complex select from ...
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2answers
137 views

Mysql: set variable in mysqldump

I recently added a global variable in mmy.cnf max_statement_time=120 ; to stop long running queries and to throw an exception. Its working fine. Then I am unable to run mysqldump for backing up all my ...
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1answer
29 views

Join against two tables to get single combined result set

tl;dr I made a SQLFiddle here http://sqlfiddle.com/#!9/031e71/1 with a minimal, complete, reproducible test case (though very specific to the problem domain of orders and products). I have a Zen Cart ...
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1answer
28 views

MySQL - Classic Date Functions

Version: 10.2.18-MariaDB I'm attempting to find the first available room within December (already included in the sample table) that will be free for 3 consecutive days. The expected output should ...
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1answer
33 views

mysql : ordering a table in the order of the primary key

I have a table with a primary key consisting of two integer columns. I store ~200 millions lines in this table. My program needs to get the full table ordered by the columns of the primary key in the ...
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1answer
28 views

Finding temporary table name in MariaDB

As I reported some days ago to MariaDB bug tracker the following bug: https://jira.mariadb.org/browse/MDEV-17420, slave replicas with version 10.2.x are leaking temporary tables on MyISAM files. Our ...
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166 views

MariaDB 10.3 slave fails to replicate from a MariaDB 10.2 master

We have a 10.2.18 master and 4 slaves with 10.2.18. Because of this bug that I've reported last week (https://jira.mariadb.org/browse/MDEV-17420) we tried to upgrade one of the replicas to 10.3.10 to ...
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0answers
22 views

MySQL InnoDB stop locking when large sql is executed

We face a issue that the InnoDB table is locked, when a sql file that is executed is large than a certain file size. The problem does not appear when the file size is much lower, for example 25MB. ...
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1answer
278 views

Add a New Column with ALIASES on 'date' by automation based on search results

I am trying to create a new column based on date search result. I have written a code in the link SQL fiddle as I am looking for date automation on each column based on the date format. the date ...
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1answer
96 views

Why am I connecting securely to MySQL when I don't have client certificates?

I don't understand the MySQL documentation for encrypted connections. The server is configured with certificates, and unless I am misreading it, the documentation says that the client must have ...
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1answer
574 views

Allow only unique combination of values for a composite primary key

I created the following table called books: CREATE TABLE IF NOT EXISTS `books` ( `id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT, `name` TEXT NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=...
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2answers
132 views

Which way should be selected when move from mysql to mariadb? [closed]

Now, the mysql version is 5.1.I plan to move to mariadb 10.2.Use mysqldump and source to update databases. Based on MySQL Upgrade Strategies, Upgrading to the latest release is recommended before ...
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1answer
315 views

table_open_cache increase issue - MariaDB 10.2

I'm trying to increase to 9000 but MariaDB sets it at 4895 automatically. Here is my simple config https://pastebin.com/raw/4eFiuFSv MySQLTuner output: Control warning line(s) into /var/lib/mysql/...
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1answer
57 views

Bypass truncated data type error in `CREATE TABLE AS`

I am attempting to recreate the code from this excellent tutorial in MariaDB 10.2 to try and build nested sets from an existing adjacency list. (The goal being to ingest changes to the adjacency list ...
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1answer
132 views

Setup replication between two Galera nodes

I've been using MariaDB 10.2 Galera with 3 nodes successfully on local servers. Now, I have a second 3-nodes Galera cluster on another location, joined by an Site-to-Site IPSec Tunnel. I can't really ...
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1answer
229 views

Partitioning increases CPU usage in mariadb

I'm using mariadb 10.2, and I had a table with a structure similar to the one below, currently with 15gb, where I insert a few thousand records per minute all the time, each batch for a specific ...
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1answer
312 views

MariaDB 10.2: Why does Count(*) work, but not Count(t.*)

I have a table containing transaction details which I am importing from several vendor-provided daily reports.. I want to be sure that I am not skipping any of the files (one file per day) as I do ...
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1answer
146 views

GSSAPI on MariaDB

I'm using Maria 10.2.13 on Windows Server 2012 and I want to use GSSAPI authentication with it so that we can continue using windows auth. I have followed this tutorial: https://mariadb.com/kb/en/...
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1answer
195 views

Can sst_state_transfer be set to rsync with innodb as storage engine in Galera cluster?

Galera cluster wsrep-sst-method docs states: You can only use rsync when anode is starting. You cannot use it with a running InnoDB storage engine. I do have InnoDB storage engine configured in ...
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1answer
160 views

What are some practical use cases for memory tables?

Trying to learn mysql and having tons of other material to learn, I'm considering skipping memory tables, since they have many special characteristics to consider especially that they vanish, after ...
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1answer
790 views

Next step to configuring MariaDB after successful installation

In addition to the formal documentation (i.e. https://mariadb.com/resources/blog/installing-mariadb-10-centos-7-rhel-7, etc), there are countless tutorials on installing MariaDB, however, not one of ...
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2answers
306 views

Alternative to ORDER BY GROUP BY to get first matches per ForeignKey

Since there is so much talk and articles about this online. I simply don't seem to have enough SQL knowledge to solve this seemingly simple problem. I have a table with layered data for a Price per ...
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2answers
2k views

The table is full - MariaDB

I am getting the following error whist trying to execute a long running query. The table 'C:\Windows\SERVIC~2\NETWOR~1\AppData\Local\Temp#sql1664_349_19be' is full The C drive (NTFS) on the server ...
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1answer
110 views

MariaDB optimisation

I stuck a bit with setting the best performance of MariaDB on my VPS. I have: 6 cores; 16GB RAM; 300GB SSD; CloudLinux; LiteSpeed >> MySQLTuner 1.7.0 - Major Hayden <major@mhtx.net> &...
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1answer
254 views

Galera Failures

I have 2 nodes. One a VPS on NFO Servers and another on Azure. I have setup the firewalls/disabled the firewalls. The nodes are CentOS 7, Latest Kernel. The configs are as follows: Node 1 (Master DB) ...
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2answers
205 views

Configure MariaDB client with host-specific credentials?

How can I configure my MariaDB client (mysql) so that I don't have to enter a password to connect, regardless of which host I am connecting to? I can't just put a password in the [client] section of ~...
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0answers
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Enforce existence of cartesian product in join table without triggers in MariaDB 10.2

Given tables A, B and C, where C holds a foreign key to both A and B (i.e. C is a "join table"), is it possible to define a constraint so that C contains the whole Cartesian product A x B without ...
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0answers
230 views

Unable to install Mariadb on Fedora 27 due to SELinux issue

I followed these instructions in installing mariadb on my fedora 27 VM. My mariadb.repo is configured as follows: [mariadb] name = MariaDB baseurl = http://yum.mariadb.org/10.2.12/fedora26-amd64 ...
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36 views

Prepared query refused by MySQL when using placeholders

I'm trying to make a prepared query but MySQL refuses to accept it when I use placeholders: This query works WITH x AS (SELECT 'root' as user_id) SELECT x.user_id FROM x LEFT JOIN user ON (x.user_id ...
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1answer
349 views

mariadb galera bootstrapping fails

Starting point at the sandbox sb1, sb2, sb3: All boxes identical. A Fresh debian 9 install mariadb 10.2 Galera3 build a test galera cluster with empty databases works fine. All three nodes come up ...
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2answers
689 views

json functions: double quotes added when going through a variable

Im stuck with what it seems simple question, when I create a JSON using the MariaDB/MySQL json functions going through variables, it adds double quotes which is annoying. However, if I don't go ...