[GitHub] [ignite-3] korlov42 commented on a diff in pull request #2140: [IGNITE-19587] Sql. Remove execution-related part from IgniteTable.

["korlov42 (via GitHub)" <gi...@apache.org>]

korlov42 commented on code in PR #2140:
URL: https://github.com/apache/ignite-3/pull/2140#discussion_r1226605360


##########
modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/exec/QueryTaskExecutor.java:
##########
@@ -45,4 +45,13 @@ public interface QueryTaskExecutor extends LifecycleAware, Executor {
      * @return the new CompletableFuture
      */
     CompletableFuture<?> submit(UUID qryId, long fragmentId, Runnable qryTask);
+
+    /**
+     * Returns an executor that is responsible for the given query fragment.
+     *
+     * @param qryId      Query ID.
+     * @param fragmentId Fragment ID.
+     * @return  An executor.
+     */
+    Executor fragmentExecutor(UUID qryId, long fragmentId);

Review Comment:
   Sole purpose of query task executer is to hide presence of several executers, while providing necessary guarantee for execution order of tasks from the same fragment.



##########
modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/exec/ExecutableTable.java:
##########
@@ -0,0 +1,41 @@
+/*
+ * 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.sql.engine.exec;
+
+import org.apache.ignite.internal.table.InternalTable;
+
+/**
+ * Execution related APIs of a table.
+ */
+public interface ExecutableTable {
+
+    /**
+     * Returns read API.
+     */
+    InternalTable table();

Review Comment:
   It's better to introduce something like ScannableTable (similar to UpdateableTable).
   
   BTW, let's rename UpdateableTable --> UpdatableTable to make naming more consistent 



##########
modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/SqlQueryProcessor.java:
##########
@@ -114,6 +116,9 @@ public class SqlQueryProcessor implements QueryProcessor {
     /** Size of the cache for query plans. */
     private static final int PLAN_CACHE_SIZE = 1024;
 
+    /** Size of the table access cache. */
+    public static final int TABLE_CACHE_SIZE = 1024;

Review Comment:
   why `public`?



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