alex-plekhanov commented on code in PR #10870:
URL: https://github.com/apache/ignite/pull/10870#discussion_r1283130727


##########
modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/exec/ExecutionServiceImpl.java:
##########
@@ -466,12 +467,12 @@ protected AffinityTopologyVersion topologyVersion() {
     }
 
     /** */
-    private BaseQueryContext createQueryContext(Context parent, @Nullable 
String schema) {
+    private BaseQueryContext createQueryContext(Context parent, 
QueryStartRequest msg) {

Review Comment:
   Looks like now this change is redundant



##########
modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/metadata/ColocationGroup.java:
##########
@@ -228,6 +228,27 @@ public ColocationGroup finalaze() {
         return forNodes0(nodeIds);
     }
 
+    /** */
+    public ColocationGroup filterForPartitions(int[] parts) {
+        if (assignments != null) {
+            List<List<UUID>> assignments = new 
ArrayList<>(this.assignments.size());
+            Set<UUID> nodes = new HashSet<>();
+
+            for (int i = 0; i < this.assignments.size(); ++i) {
+                UUID first = F.isEmpty(parts) || Arrays.binarySearch(parts, i) 
>= 0 ? F.first(this.assignments.get(i)) : null;
+
+                if (first != null)
+                    nodes.add(first);
+
+                assignments.add(first != null ? 
Collections.singletonList(first) : Collections.emptyList());

Review Comment:
   Assignment should already be finilized and can contain only 1 value in the 
list. We can use original `assignments.get(i)` instead of building new 
singleton list (reduce GC pressure a little bit).



##########
modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/metadata/ColocationGroup.java:
##########
@@ -228,6 +228,27 @@ public ColocationGroup finalaze() {
         return forNodes0(nodeIds);
     }
 
+    /** */
+    public ColocationGroup filterForPartitions(int[] parts) {

Review Comment:
   Why can't we use the same naming for ColocationGroup, Fragment and 
FragmentMapping? (`filterForPartitions`, `filterByPartitions`)



##########
modules/calcite/src/test/java/org/apache/ignite/internal/processors/query/calcite/integration/QueryWithPartitionsIntegrationTest.java:
##########
@@ -0,0 +1,302 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.ignite.internal.processors.query.calcite.integration;
+
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.IntStream;
+import java.util.stream.Stream;
+import com.google.common.collect.ImmutableList;
+import org.apache.calcite.util.Pair;
+import org.apache.ignite.IgniteCache;
+import org.apache.ignite.cache.CachePeekMode;
+import org.apache.ignite.cache.query.SqlFieldsQuery;
+import org.apache.ignite.calcite.CalciteQueryEngineConfiguration;
+import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.internal.processors.cache.GridCacheContext;
+import org.apache.ignite.internal.processors.query.QueryContext;
+import org.apache.ignite.internal.processors.query.calcite.QueryChecker;
+import org.apache.ignite.internal.util.typedef.F;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+/**
+ *
+ */
+@RunWith(Parameterized.class)
+public class QueryWithPartitionsIntegrationTest extends 
AbstractBasicIntegrationTest {
+    /**
+     *

Review Comment:
   Let's use `/** */` style comments if we don't add any text (in the whole 
file) 



##########
modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/metadata/ColocationGroup.java:
##########
@@ -228,6 +228,27 @@ public ColocationGroup finalaze() {
         return forNodes0(nodeIds);
     }
 
+    /** */
+    public ColocationGroup filterForPartitions(int[] parts) {
+        if (assignments != null) {
+            List<List<UUID>> assignments = new 
ArrayList<>(this.assignments.size());
+            Set<UUID> nodes = new HashSet<>();
+
+            for (int i = 0; i < this.assignments.size(); ++i) {
+                UUID first = F.isEmpty(parts) || Arrays.binarySearch(parts, i) 
>= 0 ? F.first(this.assignments.get(i)) : null;

Review Comment:
   1. `F.isEmpty(parts)` can be checked once (together with assignment check)
   2. We can't be sure that `parts` is sorted, this variable is passed by user. 
Perhaps it's better to build BitSet and use it to filter partitions. 



##########
modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/prepare/BaseQueryContext.java:
##########
@@ -335,13 +353,23 @@ public Builder local(boolean isLocal) {
             return this;
         }
 
+        /**
+         *

Review Comment:
   Let's use `/** */` style comments if we don't add any text.



##########
modules/calcite/src/test/java/org/apache/ignite/internal/processors/query/calcite/integration/QueryWithPartitionsIntegrationTest.java:
##########
@@ -0,0 +1,302 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.ignite.internal.processors.query.calcite.integration;
+
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.IntStream;
+import java.util.stream.Stream;
+import com.google.common.collect.ImmutableList;
+import org.apache.calcite.util.Pair;
+import org.apache.ignite.IgniteCache;
+import org.apache.ignite.cache.CachePeekMode;
+import org.apache.ignite.cache.query.SqlFieldsQuery;
+import org.apache.ignite.calcite.CalciteQueryEngineConfiguration;
+import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.internal.processors.cache.GridCacheContext;
+import org.apache.ignite.internal.processors.query.QueryContext;
+import org.apache.ignite.internal.processors.query.calcite.QueryChecker;
+import org.apache.ignite.internal.util.typedef.F;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+/**
+ *
+ */
+@RunWith(Parameterized.class)
+public class QueryWithPartitionsIntegrationTest extends 
AbstractBasicIntegrationTest {
+    /**
+     *
+     */
+    private static final int ENTRIES_COUNT = 10000;
+
+    /** */
+    private final int[] parts = IntStream.range(0, 128).toArray();

Review Comment:
   Can we add at least one test with different parts values?



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