Alexey Serbin has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/18642 )

Change subject: KUDU-2671 update partition schema in catalog when dropping range
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Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/18642/1/src/kudu/master/catalog_manager.cc
File src/kudu/master/catalog_manager.cc:

http://gerrit.cloudera.org:8080/#/c/18642/1/src/kudu/master/catalog_manager.cc@2699
PS1, Line 2699:       } else if (step.type() == 
AlterTableRequestPB::DROP_RANGE_PARTITION) {
> To summarize, for adding a range you just updated the partition schema prot
Yes, that's right: removing one of the repeated fields in a protobuf structure 
would be not very performant.

Probably, as a next step we can refactor the code and apply a similar approach 
for the ADD_RANGE_PARTITION control path, adding PartitionSchema::AddRange() 
method, and then we could remove PartitionSchema::CreatePartitionsForRange() 
method and use PartitionSchema::CreatePartitions() instead.  I guess we can do 
that in a separate changelist.



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ib78afdd1a358751dca43f564c5d8e69191f165d4
Gerrit-Change-Number: 18642
Gerrit-PatchSet: 1
Gerrit-Owner: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Abhishek Chennaka <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Attila Bukor <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Mahesh Reddy <[email protected]>
Gerrit-Comment-Date: Wed, 22 Jun 2022 19:03:37 +0000
Gerrit-HasComments: Yes

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