Zoltan Borok-Nagy has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/19838 )

Change subject: IMPALA-11534: Skip reloading file metadata for some ALTER_TABLE 
events
......................................................................


Patch Set 4:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/19838/4/fe/src/main/java/org/apache/impala/catalog/CatalogServiceCatalog.java
File fe/src/main/java/org/apache/impala/catalog/CatalogServiceCatalog.java:

http://gerrit.cloudera.org:8080/#/c/19838/4/fe/src/main/java/org/apache/impala/catalog/CatalogServiceCatalog.java@374
PS4, Line 374: whitelistedTblProperties_
Iceberg also use table property 'metadata_location' to denote the current 
snapshot file. If it changes we need to do a full table reload.


http://gerrit.cloudera.org:8080/#/c/19838/4/fe/src/main/java/org/apache/impala/catalog/CatalogServiceCatalog.java@3936
PS4, Line 3936:       if 
((!beforeTable.getParameters().containsKey(whitelistConfig) &&
              :           
afterTable.getParameters().containsKey(whitelistConfig)) ||
              :           
(beforeTable.getParameters().containsKey(whitelistConfig) &&
              :           
!afterTable.getParameters().containsKey(whitelistConfig)) ||
              :           
(beforeTable.getParameters().containsKey(whitelistConfig) &&
              :           
afterTable.getParameters().containsKey(whitelistConfig) &&
              :           !beforeTable.getParameters().get(whitelistConfig)
              :               
.equals(afterTable.getParameters().get(whitelistConfig)))) {
              :         return true;
Can it be replaced with:

 String cfgBefore = beforeTable.getParameters().get(whitelistConfig);
 String cfgAfter = afterTable.getParameters().get(whitelistConfig));

 if (!Objects.equals(cfgBefore, cfgAfter)) return true;



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ia66b96a7c4b7f50fbf46b2e02296cd29a47347b6
Gerrit-Change-Number: 19838
Gerrit-PatchSet: 4
Gerrit-Owner: Sai Hemanth Gantasala <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Sai Hemanth Gantasala <[email protected]>
Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]>
Gerrit-Comment-Date: Wed, 24 May 2023 09:47:03 +0000
Gerrit-HasComments: Yes

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