Quanlong Huang has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/22014 )

Change subject: IMPALA-13154: Update stats when loading an HDFS table
......................................................................


Patch Set 7:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/22014/7/fe/src/main/java/org/apache/impala/catalog/HdfsTable.java
File fe/src/main/java/org/apache/impala/catalog/HdfsTable.java:

http://gerrit.cloudera.org:8080/#/c/22014/7/fe/src/main/java/org/apache/impala/catalog/HdfsTable.java@363
PS7, Line 363:     public FileMetadataStats() {
             :       init();
             :     }
             :
             :     public FileMetadataStats(boolean init) {
             :       if (init) {
             :         init();
             :       } else {
             :         unset();
             :       }
             :     }
             :
             :     // Unsets the storage stats to indicate that their values 
are unknown.
             :     public void unset() {
             :       numFiles = -1;
             :       numBlocks = -1;
             :       totalFileBytes = -1;
             :     }
It seems we don't need the unset() method anymore. Previously it's only used in 
HdfsTable#load() and it's now replaced with updateStatistics():
https://github.com/apache/impala/blob/88e0e4e8baa97f7fded12230b14232dc85cf6d79/fe/src/main/java/org/apache/impala/catalog/HdfsTable.java#L1352

If we can remove unset(), the constructors can be much simpler.


http://gerrit.cloudera.org:8080/#/c/22014/7/fe/src/main/java/org/apache/impala/catalog/HdfsTable.java@1261
PS7, Line 1261: partitionStats
nit: we can use partition.getFileMetadataStats() directly



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I6e2eb503b0f61b1e6403058bc5dc78d721e7e940
Gerrit-Change-Number: 22014
Gerrit-PatchSet: 7
Gerrit-Owner: Xuebin Su <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Xuebin Su <[email protected]>
Gerrit-Comment-Date: Wed, 06 Nov 2024 07:38:30 +0000
Gerrit-HasComments: Yes

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