Zoltan Borok-Nagy has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/22474 )

Change subject: IMPALA-11597: Unset impala.lastComputeStatsTime during DROP 
STATS
......................................................................


Patch Set 3:

(3 comments)

http://gerrit.cloudera.org:8080/#/c/22474/3/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java
File fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java:

http://gerrit.cloudera.org:8080/#/c/22474/3/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@2820
PS3, Line 2820:       boolean droppedLastCompute =
              :         
msTbl.getParameters().remove(HdfsTable.TBL_PROP_LAST_COMPUTE_STATS_TIME) != 
null;
              :       if (droppedLastCompute) {
              :         applyAlterTable(msTbl, false, null, catalogTimeline);
              :       }
> Correct, the behavior for ROW_COUNT and TOTAL_SIZE does not change.
Yeah, I think it's OK to keep ROW_COUNT and TOTAL_SIZE untouched as they are 
managed by Iceberg and recreated for each snapshot.


http://gerrit.cloudera.org:8080/#/c/22474/4/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java
File fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java:

http://gerrit.cloudera.org:8080/#/c/22474/4/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@2820
PS4, Line 2820:       boolean droppedLastCompute =
              :         msTbl.getParameters().remove(HdfsTable.TBL_PROP_LAS
I think we also need:

 modification.addCatalogServiceIdentifiersToTable();
 modification.registerInflightEvent();


http://gerrit.cloudera.org:8080/#/c/22474/4/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@3540
PS4, Line 3540:       if 
(isIcebergHmsIntegrationEnabled(iceTbl.getMetaStoreTable())) {
              :         modification.registerInflightEvent();
              :         IcebergCatalogOpExecutor.addCatalogVersionToTxn(
              :             iceTxn, catalog_.getCatalogServiceId(), 
modification.newVersionNumber());
              :       }
              :       iceTxn.commitTransaction();
              :       modification.markInflightEventRegistrationComplete();
              :       modification.validateInProgressModificationComplete();
              :     } catch (ImpalaException ex) {
              :       modification.cancelInflight
Here in truncateIcebergTable() it would be better to use the same iceTxn and 
modification object to drop table stats of integrated Iceberg tables.
I think it should be doable if we create a new method: dropIcebergTableStats(), 
and dropTableStats() wouldn't do anything for integrated Iceberg tables.
And in dropStats() we could also invoke dropIcebergTableStats() for integrated 
Iceberg tables.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Id743bc9779141df7a26a95a0ea201ef6fc6aeff9
Gerrit-Change-Number: 22474
Gerrit-PatchSet: 3
Gerrit-Owner: Mihaly Szjatinya <msz...@pm.me>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Mihaly Szjatinya <msz...@pm.me>
Gerrit-Reviewer: Riza Suminto <riza.sumi...@cloudera.com>
Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com>
Gerrit-Comment-Date: Fri, 07 Mar 2025 15:20:59 +0000
Gerrit-HasComments: Yes

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