Quanlong Huang has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/24835 )

Change subject: IMPALA-15346: Fix IllegalStateException in createInsertEvents
......................................................................


Patch Set 2:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/24835/1//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/24835/1//COMMIT_MSG@9
PS1, Line 9: when inserting
           : empty results into an unpartitioned table
> If the partition was already empty and 0 rows are added by overwrite, then 
> similarly to adding 0 rows, IMO the best would be to treat it as NOOP.

Agree that this is something we can optimize, maybe in a separate ticket. The 
bug also exists when the unpartitioned table is non-empty so we do need a fix. 
Added a test case for this.

UPDATE: I just realized the empty map is created by catalogd itself in 
getFileMetadata(), not passed from the coordinator. The bug is due to this 
change: 
https://gerrit.cloudera.org/c/22872/18/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java#7924
Updated the solution to fix getFileMetadata() instead.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I0eb366f55f4e95b229a57297e42d14760b31be21
Gerrit-Change-Number: 24835
Gerrit-PatchSet: 2
Gerrit-Owner: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Anonymous Coward <[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-Comment-Date: Tue, 22 Sep 2026 14:41:29 +0000
Gerrit-HasComments: Yes

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