Vihang Karajgaonkar has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/15985 )

Change subject: IMPALA-9778: Refactor partition modifications in DDL/DMLs
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Patch Set 10:

(2 comments)

The patch looks good to me. I mostly have some minor suggestions below.

http://gerrit.cloudera.org:8080/#/c/15985/10/fe/src/main/java/org/apache/impala/catalog/HdfsPartition.java
File fe/src/main/java/org/apache/impala/catalog/HdfsPartition.java:

http://gerrit.cloudera.org:8080/#/c/15985/10/fe/src/main/java/org/apache/impala/catalog/HdfsPartition.java@629
PS10, Line 629: byte[]
Does this need to be a immutable data structure as well? Can someone do this? 
hdfsPartition.getPartitionStatsCompressed()[1] = 0;


http://gerrit.cloudera.org:8080/#/c/15985/12/fe/src/main/java/org/apache/impala/catalog/HdfsPartition.java
File fe/src/main/java/org/apache/impala/catalog/HdfsPartition.java:

http://gerrit.cloudera.org:8080/#/c/15985/12/fe/src/main/java/org/apache/impala/catalog/HdfsPartition.java@86
PS12, Line 86: HdfsPartition
Would be great to document that this class is immutable and we should use 
HdfsPartition.Builder to create and replace partitions instead of updating the 
partitions in-place.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ib52e5810d01d5e0c910daacb9c98977426d3914c
Gerrit-Change-Number: 15985
Gerrit-PatchSet: 10
Gerrit-Owner: Quanlong Huang <huangquanl...@gmail.com>
Gerrit-Reviewer: Aman Sinha <amsi...@cloudera.com>
Gerrit-Reviewer: Anurag Mantripragada <anu...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Quanlong Huang <huangquanl...@gmail.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Reviewer: Todd Lipcon <t...@apache.org>
Gerrit-Reviewer: Vihang Karajgaonkar <vih...@cloudera.com>
Gerrit-Comment-Date: Tue, 09 Jun 2020 00:18:10 +0000
Gerrit-HasComments: Yes

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