Query uses LIKE instead of = operator, add index on api_key
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3559783. -->
Reported by: [tibezh](https://www.drupal.org/user/1491908)
Related to !25
>>>
<h3>Problem</h3>
<p>The <code>api_key</code> field is defined as a string field without <code>'case_sensitive' => TRUE</code> setting. This causes Drupal's Entity Query to use <code>LIKE</code> operator instead of <code>=</code> for exact matches in the <code>getUserByKey()</code> method.</p>
<p>This results in:<br>
- Slow query performance (700+ ms on very large user tables)<br>
- Inability to use database indexes effectively<br>
- Unnecessary case-insensitive matching for an exact-match field</p>
<h3>Steps to reproduce</h3>
<p>1. Install key_auth module<br>
2. Create a user with API key<br>
3. Monitor MySQL queries during authentication:</p>
<pre>-- Current behavior (slow):<br>WHERE users_field_data.api_key LIKE 'xxx' ESCAPE '\\'<br><br>-- Expected behavior (fast):<br>WHERE users_field_data.api_key = 'xxx'</pre><p>Here is an Entity SQL Condition class where we have LIKE instead of '=' when we don't have case_sensetive option enabled - <a href="https://git.drupalcode.org/project/drupal/-/blob/11.x/core/lib/Drupal/Core/Entity/Query/Sql/Condition.php?ref_type=heads#L124">https://git.drupalcode.org/project/drupal/-/blob/11.x/core/lib/Drupal/Core/Entity/Query/Sql/Condition.php?ref_type=heads#L124</a></p>
<h3>Proposed solution</h3>
<p>Add <code>case_sensitive => TRUE</code> to the field definition in <code>key_auth.module</code>:</p>
<div class="codeblock">
<pre><span style="color: #000000"><span style="color: #0000BB"><?php<br>$fields</span><span style="color: #007700">[</span><span style="color: #DD0000">'api_key'</span><span style="color: #007700">] = </span><span style="color: #0000BB">BaseFieldDefinition</span><span style="color: #007700">::</span><span style="color: #0000BB">create</span><span style="color: #007700">(</span><span style="color: #DD0000">'string'</span><span style="color: #007700">)<br> -></span><span style="color: #0000BB">setLabel</span><span style="color: #007700">(</span><span style="color: #0000BB">t</span><span style="color: #007700">(</span><span style="color: #DD0000">'API key'</span><span style="color: #007700">))<br> -></span><span style="color: #0000BB">setDescription</span><span style="color: #007700">(</span><span style="color: #0000BB">t</span><span style="color: #007700">(</span><span style="color: #DD0000">'The API key used for authentication.'</span><span style="color: #007700">))<br> -></span><span style="color: #0000BB">addConstraint</span><span style="color: #007700">(</span><span style="color: #DD0000">'UniqueField'</span><span style="color: #007700">)<br> -></span><span style="color: #0000BB">setSettings</span><span style="color: #007700">([<br> </span><span style="color: #DD0000">'max_length' </span><span style="color: #007700">=> </span><span style="color: #0000BB">255</span><span style="color: #007700">,<br> </span><span style="color: #DD0000">'text_processing' </span><span style="color: #007700">=> </span><span style="color: #0000BB">0</span><span style="color: #007700">,<br> </span><span style="color: #DD0000">'case_sensitive' </span><span style="color: #007700">=> </span><span style="color: #0000BB">TRUE</span><span style="color: #007700">, </span><span style="color: #FF8000">// Add this line<br> </span><span style="color: #007700">]);<br></span><span style="color: #0000BB">?></span></span></pre></div>
<p>Also, add an update hook in <code>key_auth.install</code> to update existing installations.</p>
issue
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