diff --git a/chat2db-community-server/chat2db-community-plugins/chat2db-community-hive/src/main/java/ai/chat2db/plugin/hive/enums/type/HiveColumnTypeEnum.java b/chat2db-community-server/chat2db-community-plugins/chat2db-community-hive/src/main/java/ai/chat2db/plugin/hive/enums/type/HiveColumnTypeEnum.java
index 62d837bb89..7dc9814ac6 100644
--- a/chat2db-community-server/chat2db-community-plugins/chat2db-community-hive/src/main/java/ai/chat2db/plugin/hive/enums/type/HiveColumnTypeEnum.java
+++ b/chat2db-community-server/chat2db-community-plugins/chat2db-community-hive/src/main/java/ai/chat2db/plugin/hive/enums/type/HiveColumnTypeEnum.java
@@ -222,7 +222,7 @@ private String buildDataType(TableColumn column, HiveColumnTypeEnum type) {
 
 
         if (Arrays.asList(DECIMAL, FLOAT, DOUBLE,TINYINT).contains(type)) {
-            if (column.getColumnSize() == null || column.getDecimalDigits() == null) {
+            if (column.getColumnSize() == null) {
                 return columnType;
             }
             if (column.getColumnSize() != null && column.getDecimalDigits() == null) {
diff --git a/chat2db-community-server/chat2db-community-plugins/chat2db-community-hive/src/test/java/ai/chat2db/plugin/hive/enums/type/HiveColumnTypeEnumDecimalTest.java b/chat2db-community-server/chat2db-community-plugins/chat2db-community-hive/src/test/java/ai/chat2db/plugin/hive/enums/type/HiveColumnTypeEnumDecimalTest.java
new file mode 100644
index 0000000000..85a3ea07fd
--- /dev/null
+++ b/chat2db-community-server/chat2db-community-plugins/chat2db-community-hive/src/test/java/ai/chat2db/plugin/hive/enums/type/HiveColumnTypeEnumDecimalTest.java
@@ -0,0 +1,41 @@
+package ai.chat2db.plugin.hive.enums.type;
+
+import ai.chat2db.community.domain.api.model.metadata.TableColumn;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class HiveColumnTypeEnumDecimalTest {
+
+    private TableColumn column(String type, Integer size, Integer digits) {
+        TableColumn c = new TableColumn();
+        c.setColumnType(type);
+        c.setColumnSize(size);
+        c.setDecimalDigits(digits);
+        return c;
+    }
+
+    @Test
+    void decimalWithPrecisionOnly() {
+        String result = HiveColumnTypeEnum.DECIMAL.buildCreateColumnSql(column("DECIMAL", 10, null));
+        assertTrue(result.contains("DECIMAL(10"), () -> "Expected DECIMAL(10): " + result);
+    }
+
+    @Test
+    void decimalWithPrecisionAndScale() {
+        String result = HiveColumnTypeEnum.DECIMAL.buildCreateColumnSql(column("DECIMAL", 10, 2));
+        assertTrue(result.contains("DECIMAL(10,2)"), () -> "Expected DECIMAL(10,2): " + result);
+    }
+
+    @Test
+    void decimalWithBothNull() {
+        String result = HiveColumnTypeEnum.DECIMAL.buildCreateColumnSql(column("DECIMAL", null, null));
+        assertTrue(result.contains("DECIMAL"), () -> "Expected DECIMAL: " + result);
+    }
+
+    @Test
+    void floatWithPrecisionOnly() {
+        String result = HiveColumnTypeEnum.FLOAT.buildCreateColumnSql(column("FLOAT", 10, null));
+        assertTrue(result.contains("FLOAT"), () -> "Expected FLOAT: " + result);
+    }
+}