korlov42 commented on code in PR #6383:
URL: https://github.com/apache/ignite-3/pull/6383#discussion_r2265807587


##########
modules/client/src/main/java/org/apache/ignite/internal/client/sql/ClientSql.java:
##########
@@ -287,6 +291,38 @@ public <T> CompletableFuture<AsyncResultSet<T>> 
executeAsync(
             @Nullable CancellationToken cancellationToken,
             Statement statement,
             @Nullable Object... arguments) {
+        return executeAsyncInternal(

Review Comment:
   let's add a few test cases to `org.apache.ignite.client.ClientSqlTest` to 
make sure serialization works as expected



##########
modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/SqlQueryType.java:
##########
@@ -54,6 +54,18 @@ public enum SqlQueryType {
     /** A set of all query types. **/
     public static final Set<SqlQueryType> ALL = 
EnumSet.allOf(SqlQueryType.class);
 
+    /** A set of types that {@link #hasRowSet() has row set}. */
+    public static final Set<SqlQueryType> HAS_ROW_SET_TYPES = 
Arrays.stream(values())
+            
.filter(SqlQueryType::hasRowSet).collect(Collectors.toCollection(() -> 
EnumSet.noneOf(SqlQueryType.class)));
+
+    /** A set of types that {@link #returnsAffectedRows() returns number of 
affected rows}. */

Review Comment:
   ```suggestion
       /** A set of types that {@link #returnsAffectedRows() returns number of 
affected rows}. Represented by various DML statements. */
   ```



##########
modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/SqlQueryType.java:
##########
@@ -54,6 +54,18 @@ public enum SqlQueryType {
     /** A set of all query types. **/
     public static final Set<SqlQueryType> ALL = 
EnumSet.allOf(SqlQueryType.class);
 
+    /** A set of types that {@link #hasRowSet() has row set}. */
+    public static final Set<SqlQueryType> HAS_ROW_SET_TYPES = 
Arrays.stream(values())
+            
.filter(SqlQueryType::hasRowSet).collect(Collectors.toCollection(() -> 
EnumSet.noneOf(SqlQueryType.class)));
+
+    /** A set of types that {@link #returnsAffectedRows() returns number of 
affected rows}. */
+    public static final Set<SqlQueryType> RETURNS_AFFECTED_ROWS_TYPES = 
Arrays.stream(values())
+            
.filter(SqlQueryType::returnsAffectedRows).collect(Collectors.toCollection(() 
-> EnumSet.noneOf(SqlQueryType.class)));
+
+    /** A set of types that {@link #supportsWasApplied() returns boolean 
indiccating whether command was applied or not}. */

Review Comment:
   ```suggestion
       /** A set of types that {@link #supportsWasApplied() returns boolean 
indicating whether command was applied or not}. Represented by various DDL 
statements and operational commands. */
   ```



##########
modules/client-handler/src/main/java/org/apache/ignite/client/handler/requests/sql/ClientSqlCommon.java:
##########
@@ -196,4 +201,34 @@ static void packColumns(ClientMessagePacker out, 
List<ColumnMetadata> cols) {
             }
         }
     }
+
+    static Set<SqlQueryType> unpackAllowedQueryTypes(ClientMessageUnpacker 
unpacker) {
+        int size = unpacker.unpackByte();
+        Set<SqlQueryType> result = EnumSet.noneOf(SqlQueryType.class);
+
+        for (int i = 0; i < size; i++) {
+            byte typeId = unpacker.unpackByte();

Review Comment:
   I would prefer to pack everything as a single byte, not a byte per allowed 
type



##########
modules/client-handler/src/test/java/org/apache/ignite/client/handler/requests/sql/ClientSqlCommonTest.java:
##########
@@ -0,0 +1,60 @@
+/*
+ * 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.client.handler.requests.sql;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
+import java.util.Set;
+import org.apache.ignite.internal.client.sql.AllowedQueryType;
+import org.apache.ignite.internal.sql.engine.SqlQueryType;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.EnumSource;
+
+/**
+ * Tests for {@link ClientSqlCommonTest}.
+ */
+public class ClientSqlCommonTest {
+    @ParameterizedTest
+    @EnumSource(AllowedQueryType.class)
+    void testConvertAllowedTypeToQueryType(AllowedQueryType type) {
+        Set<SqlQueryType> sqlQueryTypes = 
ClientSqlCommon.convertAllowedTypeToQueryType(type);
+
+        assertFalse(sqlQueryTypes.isEmpty());
+
+        sqlQueryTypes.forEach(sqlQueryType -> {

Review Comment:
   we need to make sure also that none of existing SqlQueryType is missing. 
Assume we add a new type which for some reason doesn't fall in any of the 
ALLOW-ed types. We need to highlight such cases



##########
modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/SqlQueryType.java:
##########
@@ -54,6 +54,18 @@ public enum SqlQueryType {
     /** A set of all query types. **/
     public static final Set<SqlQueryType> ALL = 
EnumSet.allOf(SqlQueryType.class);
 
+    /** A set of types that {@link #hasRowSet() has row set}. */

Review Comment:
   ```suggestion
       /** A set of types that {@link #hasRowSet() has row set}. Usually 
represented by SELECT statement. */
   ```



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