(iotdb) branch master updated: fix(tvf): validate non-negative width and height in pattern_match (#17515)

[jackietien]

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JackieTien97 pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/master by this push:
     new 07e2cfb63f4 fix(tvf): validate non-negative width and height in 
pattern_match (#17515)
07e2cfb63f4 is described below

commit 07e2cfb63f4682bf28b2f44c9779ea7f089e9f7e
Author: Lin Xintao <lxt135...@163.com>
AuthorDate: Sun Apr 19 15:10:10 2026 +0800

    fix(tvf): validate non-negative width and height in pattern_match (#17515)
---
 .../apache/iotdb/relational/it/db/it/IoTDBWindowTVFIT.java   | 12 ++++++++++++
 .../relational/function/tvf/PatternMatchTableFunction.java   |  8 ++++++++
 2 files changed, 20 insertions(+)

diff --git 
a/integration-test/src/test/java/org/apache/iotdb/relational/it/db/it/IoTDBWindowTVFIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/relational/it/db/it/IoTDBWindowTVFIT.java
index 7b6390f84e1..dc12a4ec098 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/relational/it/db/it/IoTDBWindowTVFIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/relational/it/db/it/IoTDBWindowTVFIT.java
@@ -881,5 +881,17 @@ public class IoTDBWindowTVFIT {
         "select * from pattern_match(data => t1 ORDER BY time, time_col => 
'time', data_col => 'value', pattern => '1.0,2.0,1.0', smooth => 0.5, threshold 
=> -1.1, width => 1000.0, height => 500.0, smooth_on_pattern => false)",
         "threshold must be a non-negative number",
         DATABASE_NAME);
+
+    // test negative width should be rejected
+    tableAssertTestFail(
+        "select * from pattern_match(data => t1 ORDER BY time, time_col => 
'time', data_col => 'value', pattern => '1.0,2.0,1.0', smooth => 0.5, threshold 
=> 10.0, width => -1.0, height => 500.0, smooth_on_pattern => false)",
+        "width must be a non-negative number",
+        DATABASE_NAME);
+
+    // test negative height should be rejected
+    tableAssertTestFail(
+        "select * from pattern_match(data => t1 ORDER BY time, time_col => 
'time', data_col => 'value', pattern => '1.0,2.0,1.0', smooth => 0.5, threshold 
=> 10.0, width => 1000.0, height => -10.0, smooth_on_pattern => false)",
+        "height must be a non-negative number",
+        DATABASE_NAME);
   }
 }
diff --git 
a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/function/tvf/PatternMatchTableFunction.java
 
b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/function/tvf/PatternMatchTableFunction.java
index c2ed8c0ead0..bc9ae1f57f9 100644
--- 
a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/function/tvf/PatternMatchTableFunction.java
+++ 
b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/function/tvf/PatternMatchTableFunction.java
@@ -107,12 +107,20 @@ public class PatternMatchTableFunction implements 
TableFunction {
 
     Double smoothValue = (Double) ((ScalarArgument) 
arguments.get(SMOOTH_PARAM)).getValue();
     Double thresholdValue = (Double) ((ScalarArgument) 
arguments.get(THRESHOLD_PARAM)).getValue();
+    Double widthValue = (Double) ((ScalarArgument) 
arguments.get(WIDTH_PARAM)).getValue();
+    Double heightValue = (Double) ((ScalarArgument) 
arguments.get(HEIGHT_PARAM)).getValue();
     if (smoothValue < 0) {
       throw new UDFException("smooth must be a non-negative number, but got: " 
+ smoothValue);
     }
     if (thresholdValue < 0) {
       throw new UDFException("threshold must be a non-negative number, but 
got: " + thresholdValue);
     }
+    if (widthValue < 0) {
+      throw new UDFException("width must be a non-negative number, but got: " 
+ widthValue);
+    }
+    if (heightValue < 0) {
+      throw new UDFException("height must be a non-negative number, but got: " 
+ heightValue);
+    }
 
     // outputColumnSchema description
     DescribedSchema properColumnSchema =