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Posted to commits@iotdb.apache.org by ha...@apache.org on 2022/10/11 08:26:25 UTC

[iotdb] branch deleteDataNpe created (now 1b2af9e999)

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haonan pushed a change to branch deleteDataNpe
in repository https://gitbox.apache.org/repos/asf/iotdb.git


      at 1b2af9e999 [IOTDB-4600] Fix NPE occurred when deleting data

This branch includes the following new commits:

     new 1b2af9e999 [IOTDB-4600] Fix NPE occurred when deleting data

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[iotdb] 01/01: [IOTDB-4600] Fix NPE occurred when deleting data

Posted by ha...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

haonan pushed a commit to branch deleteDataNpe
in repository https://gitbox.apache.org/repos/asf/iotdb.git

commit 1b2af9e999da50d654483910d96498ee58ac4c81
Author: HTHou <hh...@outlook.com>
AuthorDate: Tue Oct 11 16:26:12 2022 +0800

    [IOTDB-4600] Fix NPE occurred when deleting data
---
 .../org/apache/iotdb/db/it/IoTDBDeletionIT.java    | 24 ++++++++++++++++++++++
 .../planner/plan/node/write/DeleteDataNode.java    |  9 +++++---
 2 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBDeletionIT.java b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBDeletionIT.java
index 83fdafbaad..2116e6200b 100644
--- a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBDeletionIT.java
+++ b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBDeletionIT.java
@@ -400,6 +400,30 @@ public class IoTDBDeletionIT {
     }
   }
 
+  @Test
+  public void testDeleteDataFromEmptySeries() throws SQLException {
+    try (Connection connection = EnvFactory.getEnv().getConnection();
+        Statement statement = connection.createStatement()) {
+      statement.execute(
+          "create timeseries root.ln.wf01.wt01.status with datatype=BOOLEAN,encoding=PLAIN;");
+      statement.execute(
+          "INSERT INTO root.ln.wf01.wt01(Time,status) VALUES (2022-10-11 10:20:50,true),(2022-10-11 10:20:51,true);");
+      statement.execute(
+          "create timeseries root.sg.wf01.wt01.status with datatype=BOOLEAN,encoding=PLAIN;");
+
+      statement.execute(
+          "DELETE FROM root.ln.wf01.wt01.status,root.sg.wf01.wt01.status WHERE time >2022-10-11 10:20:50;");
+
+      try (ResultSet resultSet = statement.executeQuery("select ** from root")) {
+        int cnt = 0;
+        while (resultSet.next()) {
+          cnt++;
+        }
+        Assert.assertEquals(1, cnt);
+      }
+    }
+  }
+
   @Test
   public void testDelSeriesWithSpecialSymbol() throws SQLException {
     try (Connection connection = EnvFactory.getEnv().getConnection();
diff --git a/server/src/main/java/org/apache/iotdb/db/mpp/plan/planner/plan/node/write/DeleteDataNode.java b/server/src/main/java/org/apache/iotdb/db/mpp/plan/planner/plan/node/write/DeleteDataNode.java
index 7fbb066f56..219b874651 100644
--- a/server/src/main/java/org/apache/iotdb/db/mpp/plan/planner/plan/node/write/DeleteDataNode.java
+++ b/server/src/main/java/org/apache/iotdb/db/mpp/plan/planner/plan/node/write/DeleteDataNode.java
@@ -286,9 +286,12 @@ public class DeleteDataNode extends WritePlanNode implements WALEntryValue {
       for (TRegionReplicaSet regionReplicaSet :
           dataPartition.getDataRegionReplicaSet(
               devicePath.getFullPath(), Collections.emptyList())) {
-        regionToPatternMap
-            .computeIfAbsent(regionReplicaSet, o -> new ArrayList<>())
-            .addAll(pathPattern.alterPrefixPath(devicePath));
+        // regionId is null when data region of devicePath not existed
+        if (regionReplicaSet.getRegionId() != null) {
+          regionToPatternMap
+              .computeIfAbsent(regionReplicaSet, o -> new ArrayList<>())
+              .addAll(pathPattern.alterPrefixPath(devicePath));
+        }
       }
     }
   }