fix：修复seata2.4版本下达梦数据库回滚异常问题，增加调试日志

zt-framework/zt-spring-boot-starter-seata-dm/src/main/java/org/apache/seata/rm/datasource/DataCompareUtils.java

@@ -26,6 +26,8 @@ import org.apache.seata.rm.datasource.undo.AbstractUndoLogManager;
 import org.apache.seata.rm.datasource.undo.parser.FastjsonUndoLogParser;
 import org.apache.seata.rm.datasource.undo.parser.JacksonUndoLogParser;
 import org.apache.seata.sqlparser.struct.TableMeta;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.lang.reflect.Method;
 import java.math.BigDecimal;
@@ -66,6 +68,18 @@ import java.util.stream.Collectors;
  */
 public class DataCompareUtils {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(DataCompareUtils.class);
+
+    /**
+     * 标识补丁类是否已加载
+     */
+    private static final boolean PATCHED;
+
+    static {
+        PATCHED = true;
+        LOGGER.info("[zt-spring-boot-starter-seata-dm] DataCompareUtils 补丁类已加载，用于解决达梦数据库 DmdbTimestamp 时区问题");
+    }
+
     private DataCompareUtils() {}
 
     /**
@@ -102,6 +116,10 @@ public class DataCompareUtils {
                                     Instant i0 = toInstant(v0);
                                     Instant i1 = toInstant(v1);
                                     boolean equals = Objects.equals(i0, i1);
+                                    if (LOGGER.isDebugEnabled()) {
+                                        LOGGER.debug("[zt-seata-dm-patch] DmdbTimestamp 比较: field={}, i0={}, i1={}, equals={}",
+                                                f0.getName(), i0, i1, equals);
+                                    }
                                     return equals
                                             ? Result.ok()
                                             : Result.buildWithParams(