Vihang Karajgaonkar has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/17313 )

Change subject: IMPALA-10656: Fire insert events before commit
......................................................................


Patch Set 8:

(6 comments)

http://gerrit.cloudera.org:8080/#/c/17313/8/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java
File fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java:

http://gerrit.cloudera.org:8080/#/c/17313/8/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@4672
PS8, Line 4672: and
nit, s/and/an


http://gerrit.cloudera.org:8080/#/c/17313/8/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@4868
PS8, Line 4868:    * @param partitionFilesMapBeforeInsert List of files for 
each partition in which data
              :    *                                     was inserted.
              :    * @param affectedExistingPartitions List of all affected 
partitions that were already
              :    *                                   existed.
              :    * @param newPartsCreated represents all the partitions names 
which got created by
              :    *                       the insert operation.
              :    * @param isInsertOverwrite indicates if the operation was an 
insert overwrite.
can you update the comment with the new params?


http://gerrit.cloudera.org:8080/#/c/17313/8/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@4902
PS8, Line 4902:       if (!isTransactional) {
              :         // add_partitions() RPC have already fired events for 
new partitions in the
              :         // non-transactional case.
              :         partSet = new HashSet<String>(partSet);
              :         partSet.removeAll(addedPartitionNames);
              :       }
It is not clear to me why we do this for non-transactional tables. IIUC 
addedPartitionNames represents the newly added partitions. These partitions do 
not need a INSERT event irrespective of whether the table is transactional or 
not since HMS will generate a ADD_PARTITION event when we added them on line 
4740. So this block will need to be done both transactional and 
non-transactional table right?


http://gerrit.cloudera.org:8080/#/c/17313/8/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@4912
PS8, Line 4912: get("")
I think it is worth a comment here to mention that in case of unpartitioned 
table the key is "" and may be provide the method name in the backend as 
reference.


http://gerrit.cloudera.org:8080/#/c/17313/8/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@4916
PS8, Line 4916: Preconditions
nit, move the preconditions above line 4914.


http://gerrit.cloudera.org:8080/#/c/17313/8/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@4926
PS8, Line 4926:       Preconditions.checkState(!newFiles.isEmpty() || 
isInsertOverwrite);
              :       Preconditions.checkState(!partVals.isEmpty());
nit, move the preconditions check before line 4924



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I2ed812dbcb5f55efff3a910a3daeeb76cd3295b9
Gerrit-Change-Number: 17313
Gerrit-PatchSet: 8
Gerrit-Owner: Csaba Ringhofer <csringho...@cloudera.com>
Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Vihang Karajgaonkar <vih...@cloudera.com>
Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com>
Gerrit-Comment-Date: Tue, 20 Apr 2021 15:56:04 +0000
Gerrit-HasComments: Yes

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