(paimon) branch master updated: [api] Fix VectorType#isPrunedFrom to compare vector length (#8812)

[lzljs3620320]

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


The following commit(s) were added to refs/heads/master by this push:
     new 926ffb1df1 [api] Fix VectorType#isPrunedFrom to compare vector length 
(#8812)
926ffb1df1 is described below

commit 926ffb1df1d9f9c171fcbc6b05ed07b6cfb47e4f
Author: Eunbin Son <58901024+thswls...@users.noreply.github.com>
AuthorDate: Thu Jul 23 19:33:25 2026 +0900

    [api] Fix VectorType#isPrunedFrom to compare vector length (#8812)
---
 .../src/main/java/org/apache/paimon/types/VectorType.java |  2 +-
 .../test/java/org/apache/paimon/types/VectorTypeTest.java | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/paimon-api/src/main/java/org/apache/paimon/types/VectorType.java 
b/paimon-api/src/main/java/org/apache/paimon/types/VectorType.java
index 008b6f8abf..a3ea840c61 100644
--- a/paimon-api/src/main/java/org/apache/paimon/types/VectorType.java
+++ b/paimon-api/src/main/java/org/apache/paimon/types/VectorType.java
@@ -163,7 +163,7 @@ public class VectorType extends DataType {
             return false;
         }
         VectorType vectorType = (VectorType) o;
-        return elementType.isPrunedFrom(vectorType.elementType);
+        return elementType.isPrunedFrom(vectorType.elementType) && length == 
vectorType.length;
     }
 
     @Override
diff --git 
a/paimon-api/src/test/java/org/apache/paimon/types/VectorTypeTest.java 
b/paimon-api/src/test/java/org/apache/paimon/types/VectorTypeTest.java
index 9153d254b8..4e1f1e4414 100644
--- a/paimon-api/src/test/java/org/apache/paimon/types/VectorTypeTest.java
+++ b/paimon-api/src/test/java/org/apache/paimon/types/VectorTypeTest.java
@@ -38,4 +38,19 @@ class VectorTypeTest {
         assertThat(DataTypes.VECTOR(Integer.MAX_VALUE, 
DataTypes.DOUBLE()).defaultSize())
                 .isEqualTo(Integer.MAX_VALUE);
     }
+
+    @Test
+    void testIsPrunedFromRejectsDifferentLength() {
+        DataType left = DataTypes.VECTOR(3, DataTypes.FLOAT());
+        DataType right = DataTypes.VECTOR(5, DataTypes.FLOAT());
+        assertThat(left.isPrunedFrom(right)).isFalse();
+        assertThat(right.isPrunedFrom(left)).isFalse();
+    }
+
+    @Test
+    void testIsPrunedFromAcceptsSameElementTypeAndLength() {
+        DataType left = DataTypes.VECTOR(3, DataTypes.FLOAT());
+        DataType right = DataTypes.VECTOR(3, DataTypes.FLOAT());
+        assertThat(left.isPrunedFrom(right)).isTrue();
+    }
 }