zhangbutao commented on code in PR #5038:
URL: https://github.com/apache/hive/pull/5038#discussion_r1479607064
##########
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:
Impala could reset the engine fileld value if it doesn't want to use hive
stats. And also We/hive can't stop Impala or others to writing stats with
engine=hive. Engine field can be changed by any 3rd HMS thrift client.
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