Mahesh Reddy has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/17825 )

Change subject: KUDU-2671 allow a range to have no hash schema
......................................................................


Patch Set 2:

(5 comments)

http://gerrit.cloudera.org:8080/#/c/17825/2/src/kudu/client/client.cc
File src/kudu/client/client.cc:

http://gerrit.cloudera.org:8080/#/c/17825/2/src/kudu/client/client.cc@884
PS2, Line 884:   // Using KuduTableCreator::add_range_partition() assumes the 
range partition
So to summarize:

1. Use add_range_partition() when the range uses the table wide schema.
2. Use add_custom_range_partition() and add a custom hash schema.
3. Use add_custom_range_partition() and don't add a hash schema to signify 
empty hash bucketing.

Just looking at the comments from client.h, can we clarify this 
https://github.com/apache/kudu/blob/master/src/kudu/client/client.h#L1308-L1309?

Specifically, the last part saying 'different from a schema used for a range 
partition'.


http://gerrit.cloudera.org:8080/#/c/17825/2/src/kudu/common/partition.cc
File src/kudu/common/partition.cc:

http://gerrit.cloudera.org:8080/#/c/17825/2/src/kudu/common/partition.cc@593
PS2, Line 593:       // If current bound's HashSchema is empty, implies use of 
default
Update comment as well.


http://gerrit.cloudera.org:8080/#/c/17825/2/src/kudu/common/partition.cc@602
PS2, Line 602:         int index = current_range_hash_schema.empty() ? -1 : i;
I believe we can get rid of this line and just directly add index to 
'partition_idx_to_hash_schema_idx'.


http://gerrit.cloudera.org:8080/#/c/17825/2/src/kudu/common/partition.cc@656
PS2, Line 656: || partition_idx_to_hash_schema_idx[j] == -1
can remove this if change on L602 is successful.


http://gerrit.cloudera.org:8080/#/c/17825/2/src/kudu/common/partition_pruner-test.cc
File src/kudu/common/partition_pruner-test.cc:

http://gerrit.cloudera.org:8080/#/c/17825/2/src/kudu/common/partition_pruner-test.cc@1207
PS2, Line 1207: A
Comment is incorrect (my mistake), change to B = 0.



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ia43df69ecd7040e285e098fde49d84a7a00d1fbb
Gerrit-Change-Number: 17825
Gerrit-PatchSet: 2
Gerrit-Owner: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Andrew Wong <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Mahesh Reddy <[email protected]>
Gerrit-Comment-Date: Wed, 08 Sep 2021 00:49:14 +0000
Gerrit-HasComments: Yes

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