[Solved] How to avoid slow request to use envers at Spring boot

How to optimize this SQL query?

In case you have your own slow SQL query, you can optimize it automatically here.

For the query above, the following recommendations will be helpful as part of the SQL tuning process.
You'll find 3 sections below:

  1. Description of the steps you can take to speed up the query.
  2. The optimal indexes for this query, which you can copy and create in your database.
  3. An automatically re-written query you can copy and execute in your database.
The optimization process and recommendations:
  1. Avoid Correlated Subqueries (query line: 7): A correlated subquery is a subquery that contains a reference (column: data_id) to a table that also appears in the outer query. Usually correlated queries can be rewritten with a join clause, which is the best practice. The database optimizer handles joins much better than correlated subqueries. Therefore, rephrasing the query with a join will allow the optimizer to use the most efficient execution plan for the query.
  2. Avoid Selecting Unnecessary Columns (query line: 2): Avoid selecting all columns with the '*' wildcard, unless you intend to use them all. Selecting redundant columns may result in unnecessary performance degradation.
  3. Create Optimal Indexes (modified query below): The recommended indexes are an integral part of this optimization effort and should be created before testing the execution duration of the optimized query.
Optimal indexes for this query:
ALTER TABLE `data_aud` ADD INDEX `data_aud_idx_data_id_rev` (`data_id`,`rev`);
The optimized query:
        data_aud publish_au0_ 
        data_au0_.rev = (
                data_aud data_au1_ 
                data_au1_.rev <= 999999 
                AND data_au0_.data_id = data_au1_.data_id
        AND data_au0_.data_id = 'my-data-01'

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* original question posted on StackOverflow here.