Deploying to master from @ JanusGraph/janusgraph@0cb87d3 🚀

Author: porunov

master/changelog/index.html

@@ -2049,6 +2049,20 @@
     JSON schema initializer
   </a>
 
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#batched-queries-enhancement-introduction-of-janusgraphnoopbarriervertexonlystep" class="md-nav__link">
+    Batched Queries Enhancement: Introduction of JanusGraphNoOpBarrierVertexOnlyStep
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#batch-query-optimizations-now-support-traversals-containing-the-drop-step" class="md-nav__link">
+    Batch Query Optimizations Now Support Traversals Containing the drop() Step
+  </a>
+  
 </li>
 
       </ul>
@@ -3176,6 +3190,20 @@
     JSON schema initializer
   </a>
 
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#batched-queries-enhancement-introduction-of-janusgraphnoopbarriervertexonlystep" class="md-nav__link">
+    Batched Queries Enhancement: Introduction of JanusGraphNoOpBarrierVertexOnlyStep
+  </a>
+  
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#batch-query-optimizations-now-support-traversals-containing-the-drop-step" class="md-nav__link">
+    Batch Query Optimizations Now Support Traversals Containing the drop() Step
+  </a>
+  
 </li>
 
       </ul>
@@ -4432,6 +4460,23 @@ <h5 id="berkeleyje-ability-to-overwrite-arbitrary-settings-applied-at-environmen
 <h5 id="json-schema-initializer">JSON schema initializer</h5>
 <p>For simplicity JSON schema initialization options has been added into JanusGraph.
 See <a href="../schema/schema-init-strategies/">documentation</a> to learn more about JSON schema initialization process.</p>
+<h5 id="batched-queries-enhancement-introduction-of-janusgraphnoopbarriervertexonlystep">Batched Queries Enhancement: Introduction of <code>JanusGraphNoOpBarrierVertexOnlyStep</code></h5>
+<p>In previous versions, when a query that could benefit from batch-query optimization (multi-query) was executed without
+a user-defined barrier step, JanusGraph would inject a <code>NoOpBarrierStep</code> by default. This approach allowed batching
+for edges and properties, which do not gain advantages from multi-query optimization.</p>
+<p>Starting with JanusGraph 1.1.0, this behavior has been improved. The system now injects a
+<code>JanusGraphNoOpBarrierVertexOnlyStep</code> instead of the standard <code>NoOpBarrierStep</code> when no barrier steps are detected.
+This change ensures that batching is applied exclusively to vertices, which do benefit from batch queries,
+while excluding edges and properties from the batching process.</p>
+<p>If a user explicitly defines a <code>.barrier()</code> step in the query, the system will continue to use the <code>NoOpBarrierStep</code> as expected.</p>
+<h5 id="batch-query-optimizations-now-support-traversals-containing-the-drop-step">Batch Query Optimizations Now Support Traversals Containing the <code>drop()</code> Step</h5>
+<p>Starting with JanusGraph 1.1.0, batch optimizations for vertex removal have been introduced in the <code>drop()</code> step and
+are enabled by default. Previously, any batch optimization would be skipped for queries containing at least one
+<code>drop()</code> step. However, with this update, such queries are now eligible for batch query optimization (multi-query).</p>
+<p>Please note that the <code>LazyBarrierStrategy</code> (a TinkerPop strategy) is disabled for any query that includes at least one <code>drop()</code> step.</p>
+<p>To disable the <code>drop()</code> step optimization and maintain the previous behavior, users can set the following configuration:
+<div class="highlight"><pre><span></span><code>query.batch.drop-step-mode=none
+</code></pre></div></p>
 <h3 id="version-101-release-date">Version 1.0.1 (Release Date: ???)</h3>
 <div class="tabbed-set tabbed-alternate" data-tabs="2:2"><input checked="checked" id="__tabbed_2_1" name="__tabbed_2" type="radio" /><input id="__tabbed_2_2" name="__tabbed_2" type="radio" /><div class="tabbed-labels"><label for="__tabbed_2_1">Maven</label><label for="__tabbed_2_2">Gradle</label></div>
 <div class="tabbed-content">

master/configs/configuration-reference/index.html

@@ -4331,6 +4331,13 @@ <h3 id="querybatch">query.batch</h3>
 </thead>
 <tbody>
 <tr>
+<td>query.batch.drop-step-mode</td>
+<td>Batching mode for <code>drop()</code> step. Used only when <code>query.batch.enabled</code> is <code>true</code>.<br>Supported modes:<br>- <code>all</code> - Drops all vertices in a batch.<br>- <code>none</code> - Skips drop batching optimization.<br></td>
+<td>String</td>
+<td>all</td>
+<td>MASKABLE</td>
+</tr>
+<tr>
 <td>query.batch.enabled</td>
 <td>Whether traversal queries should be batched when executed against the storage backend. This can lead to significant performance improvement if there is a non-trivial latency to the backend. If <code>false</code> then all other configuration options under <code>query.batch</code> namespace are ignored.</td>
 <td>Boolean</td>

master/configs/janusgraph-cfg/index.html

@@ -3798,6 +3798,13 @@ <h3 id="querybatch">query.batch</h3>
 </thead>
 <tbody>
 <tr>
+<td>query.batch.drop-step-mode</td>
+<td>Batching mode for <code>drop()</code> step. Used only when <code>query.batch.enabled</code> is <code>true</code>.<br>Supported modes:<br>- <code>all</code> - Drops all vertices in a batch.<br>- <code>none</code> - Skips drop batching optimization.<br></td>
+<td>String</td>
+<td>all</td>
+<td>MASKABLE</td>
+</tr>
+<tr>
 <td>query.batch.enabled</td>
 <td>Whether traversal queries should be batched when executed against the storage backend. This can lead to significant performance improvement if there is a non-trivial latency to the backend. If <code>false</code> then all other configuration options under <code>query.batch</code> namespace are ignored.</td>
 <td>Boolean</td>

master/operations/batch-processing/index.html

@@ -2503,7 +2503,7 @@ <h2 id="batched-query-processing-flow">Batched Query Processing Flow</h2>
 <ol>
 <li>Batch compatible step. This is the step which will execute batch requests. Currently, the list of such steps
     is the next: <code>out()</code>, <code>in()</code>, <code>both()</code>, <code>inE()</code>, <code>outE()</code>, <code>bothE()</code>, <code>has()</code>, <code>values()</code>, <code>properties()</code>, <code>valueMap()</code>,
-    <code>propertyMap()</code>, <code>elementMap()</code>, <code>label()</code>.</li>
+    <code>propertyMap()</code>, <code>elementMap()</code>, <code>label()</code>, <code>drop()</code>.</li>
 <li>Parent step. This is a parent step which has local traversals with the same start. Such parent steps also implement the 
     interface <code>TraversalParent</code>. There are many such steps, but as for an example those could be: <code>and(...)</code>, <code>or(...)</code>, 
     <code>not(...)</code>, <code>order().by(...)</code>, <code>project("valueA", "valueB", "valueC").by(...).by(...).by(...)</code>, <code>union(..., ..., ...)</code>,
@@ -2653,7 +2653,8 @@ <h4 id="batch-processing-for-properties">Batch processing for properties</h4>
 See configuration option <code>query.batch.has-step-mode</code> to control properties pre-fetching behaviour for <code>has</code> step.<br />
 See configuration option <code>query.batch.properties-mode</code> to control properties pre-fetching behaviour for <code>values</code>, 
 <code>properties</code>, <code>valueMap</code>, <code>propertyMap</code>, and <code>elementMap</code> steps.<br />
-See configuration option <code>query.batch.label-step-mode</code> to control labels pre-fetching behaviour for <code>label</code> step.  </p>
+See configuration option <code>query.batch.label-step-mode</code> to control labels pre-fetching behaviour for <code>label</code> step.<br />
+See configuration option <code>query.batch.drop-step-mode</code> to control drop batching behaviour for <code>drop</code> step.  </p>