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| Query Optimization Report

The optimal indexes for this query are ...

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By default, the database cannot use indexes on columns used as function parameters, e.g. MONTH(date) = 5.
You can index the these statements by creating and indexing virtual columns:

Please create these indexes before executing the optimized query:

The following indexes already exist in your database and were found as useful for optimal query performance:

Can't create the suggested temporary tables below? Click here to avoid them.

If the relationship between the tables isn't 1:1, the output from this optimized query may not match the original query's output. If that's the case, click here to retrieve another alternative.

The new optimized query is ...

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Optimizing a SQL query

Tell us about your database:

Please submit the SELECT query you would like to optimize:

Our AI-powered optimizer is far more accurate when provided with the database metadata. Please export the metadata and submit the output file below.

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Our AI-powered optimizer is far more accurate when it has informatiion about your database metadata. Please execute this query and submit the output.

Copy SQL query to fetch metadata

* Database metadata was last updated: X days ago.

Please paste the output below, or click here to upload as a file.

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You're missing out! Users who submit their metadata get up to 60% better recommendations.

Query Performance Trend

Resubmit a query for optimization

Please adjust the query's syntax and re-submit it for optimization:

Redundant indexes report

Copy all indexes removal commands

Installing EverSQL Performance Sensor

EverSQL performance sensor will track your databases slow query logs on an on-going basis and generate personalized optimization insights for you automatically. You can use the performance sensor with MySQL, MariaDB and Percona databases.

Step 1: Enable the slow query log

The performance sensor requires slow query logs to be enabled.
Click here for instructions if you don't have them enabled.

To enable slow query logs, please add the following parameters to MySQL's configuration file. By default, the configuration file is at /etc/my.cnf, or at /etc/mysql/my.cnf.

[mysqld]
slow_query_log=1
long_query_time=1 # Logs queries longer than 1 second
log_output=FILE
slow_query_log_file=/var/lib/mysql/slow.log

To apply the changes, please restart the database (requires short downtime):

sudo /etc/init.d/mysql restart

Step 2: Install the performance sensor

To install the performance sensor, please run the following commands.
If your slow query log file is not at /var/lib/mysql/slow.log, please modify the path below.

curl https://www.eversql.com/install/ubuntu_18_04 > install_sensor
sudo bash -x install_sensor /var/lib/mysql/slow.log

Once installed, the sensor will start sending identified slow queries within a few minutes.

EverSQL performance sensor will track your databases slow query logs on an on-going basis and generate personalized optimization insights for you automatically. You can find more information here.
You can use the performance sensor with Amazon RDS MySQL / RDS MariaDB / Aurora MySQL databases.

Step 1: Enable the slow query log

To enable slow query logs on your database instances, please follow the 'Enable slow query log' section here.

Once you're done editing the parameter group and assigning it to your instance, please make sure you restart the database to apply the changes (may require downtime).

Step 2: Install the performance sensor (Beta)

You can now deploy the performance sensor from the Amazon Serverless Application repository.
Your personal API key (required as part of the installation):

Once installed, the sensor will start sending identified slow queries within a few minutes.