[iotdb] 01/01: add input location for TimeJoinNode

[ja...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

jackietien pushed a commit to branch stable-mpp
in repository https://gitbox.apache.org/repos/asf/iotdb.git

commit 58e0565bd6d0e99ab605494e601aa58694dc76a7
Author: JackieTien97 <ja...@gmail.com>
AuthorDate: Tue Apr 19 11:11:58 2022 +0800

    add input location for TimeJoinNode
---
 .../db/mpp/sql/planner/plan/InputLocation.java     | 39 ++++++++++++++++++++++
 .../planner/plan/node/process/TimeJoinNode.java    | 23 +++++++++++++
 2 files changed, 62 insertions(+)

diff --git a/server/src/main/java/org/apache/iotdb/db/mpp/sql/planner/plan/InputLocation.java b/server/src/main/java/org/apache/iotdb/db/mpp/sql/planner/plan/InputLocation.java
new file mode 100644
index 0000000000..705d8cbace
--- /dev/null
+++ b/server/src/main/java/org/apache/iotdb/db/mpp/sql/planner/plan/InputLocation.java
@@ -0,0 +1,39 @@
+/*
+ * 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.iotdb.db.mpp.sql.planner.plan;
+
+public class InputLocation {
+  // which input tsblock
+  private final int tsBlockIndex;
+  // which value column of that tsblock
+  private final int valueColumnIndex;
+
+  public InputLocation(int tsBlockIndex, int valueColumnIndex) {
+    this.tsBlockIndex = tsBlockIndex;
+    this.valueColumnIndex = valueColumnIndex;
+  }
+
+  public int getTsBlockIndex() {
+    return tsBlockIndex;
+  }
+
+  public int getValueColumnIndex() {
+    return valueColumnIndex;
+  }
+}
diff --git a/server/src/main/java/org/apache/iotdb/db/mpp/sql/planner/plan/node/process/TimeJoinNode.java b/server/src/main/java/org/apache/iotdb/db/mpp/sql/planner/plan/node/process/TimeJoinNode.java
index fdda60a311..484e49d8b4 100644
--- a/server/src/main/java/org/apache/iotdb/db/mpp/sql/planner/plan/node/process/TimeJoinNode.java
+++ b/server/src/main/java/org/apache/iotdb/db/mpp/sql/planner/plan/node/process/TimeJoinNode.java
@@ -21,6 +21,7 @@ package org.apache.iotdb.db.mpp.sql.planner.plan.node.process;
 import org.apache.iotdb.commons.utils.TestOnly;
 import org.apache.iotdb.db.mpp.common.header.ColumnHeader;
 import org.apache.iotdb.db.mpp.sql.planner.plan.IOutputPlanNode;
+import org.apache.iotdb.db.mpp.sql.planner.plan.InputLocation;
 import org.apache.iotdb.db.mpp.sql.planner.plan.node.PlanNode;
 import org.apache.iotdb.db.mpp.sql.planner.plan.node.PlanNodeId;
 import org.apache.iotdb.db.mpp.sql.planner.plan.node.PlanNodeType;
@@ -58,6 +59,16 @@ public class TimeJoinNode extends ProcessNode implements IOutputPlanNode {
 
   private List<ColumnHeader> columnHeaders = new ArrayList<>();
 
+  // indicate each output column should use which value column of which input TsBlock
+  // size of locationList must be equal to the size of columnHeaders
+  private List<List<InputLocation>> locationList = new ArrayList<>();
+
+  // if overlapped[i] is true, it means that locationList.get(i).size() > 1 and input locations in
+  // locationList.get(i) are overlapped
+  // it will only happen when we do the load balance and more than one DataRegion is assigned to one
+  // time partition
+  private boolean[] overlapped;
+
   public TimeJoinNode(PlanNodeId id, OrderBy mergeOrder) {
     super(id);
     this.mergeOrder = mergeOrder;
@@ -125,6 +136,18 @@ public class TimeJoinNode extends ProcessNode implements IOutputPlanNode {
     }
   }
 
+  public List<List<InputLocation>> getLocationList() {
+    return locationList;
+  }
+
+  public void setOverlapped(boolean[] overlapped) {
+    this.overlapped = overlapped;
+  }
+
+  public boolean[] getOverlapped() {
+    return overlapped;
+  }
+
   public static TimeJoinNode deserialize(ByteBuffer byteBuffer) {
     OrderBy orderBy = OrderBy.values()[ReadWriteIOUtils.readInt(byteBuffer)];
     FilterNullPolicy filterNullPolicy =