zhangbutao commented on code in PR #5038:
URL: https://github.com/apache/hive/pull/5038#discussion_r1476113895


##########
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java:
##########
@@ -5094,26 +5094,22 @@ public static String verifyStatsChangeCtx(String 
fullTableName, Map<String, Stri
     if (validWriteIds != null && writeId > 0) {
       return null; // We have txn context.
     }
-    String oldVal = oldP == null ? null : 
oldP.get(StatsSetupConst.COLUMN_STATS_ACCURATE);
-    String newVal = newP == null ? null : 
newP.get(StatsSetupConst.COLUMN_STATS_ACCURATE);
-    // We don't need txn context is that stats state is not being changed.
-    if (StringUtils.isEmpty(oldVal) && StringUtils.isEmpty(newVal)) {
+
+    if (!StatsSetupConst.areBasicStatsUptoDate(newP)) {
+      // The validWriteIds can be absent, for example, in case of Impala alter.

Review Comment:
   Since some components(such as Impala&Trino) may don't care the field 
`validWriteIds` , can we set the fileld a default value to fix this issue? Like 
`engine `field i have done:
   
https://github.com/apache/hive/blob/0f8190fefa56513a042566ef87b852e8343610aa/standalone-metastore/metastore-common/src/main/thrift/hive_metastore.thrift#L903-L904
   
   It seems that we have introduced some extra filelds in stats related class 
since Hive4, but the stats related class are often used by other 
components(Impala&Trino, etc), so some incompatible issues are reported by the 
other components(Impala&Trino, etc). In one word, if we can set a default value 
for these new added field, maybe we can fix  similar issues at its root? 



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