Riza Suminto has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/17842 )

Change subject: IMPALA-5741: Initial support for reading tiny RDBMS tables
......................................................................


Patch Set 22:

(5 comments)

http://gerrit.cloudera.org:8080/#/c/17842/22//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/17842/22//COMMIT_MSG@11
PS22, Line 11: It has some limitations due to the restrictions of "external data
             : source":
nit: I assume this patch is also still limited by IMPALA-7131 (does not work 
for Catalog V2)? If yes, can we mention it here?


http://gerrit.cloudera.org:8080/#/c/17842/22//COMMIT_MSG@39
PS22, Line 39: -i ${IMPALAD}
nit: This can be removed? impala-shell will connect to first impalad.


http://gerrit.cloudera.org:8080/#/c/17842/22/testdata/bin/copy-data-sources.sh
File testdata/bin/copy-data-sources.sh:

http://gerrit.cloudera.org:8080/#/c/17842/22/testdata/bin/copy-data-sources.sh@28
PS22, Line 28: ${FILESYSTEM_PREFIX}/test-warehouse/data-sources/
nit: Contain this path into its own bash variable and use that for the 
following commands?


http://gerrit.cloudera.org:8080/#/c/17842/22/testdata/bin/copy-data-sources.sh@40
PS22, Line 40: hadoop fs -put -f \
             :   ${IMPALA_HOME}/fe/target/dependency/postgresql-*.jar \
             :   
${FILESYSTEM_PREFIX}/test-warehouse/data-sources/jdbc-driver/postgresql-jdbc.jar
nit: print something at the end of this script to indicate successful run? 
Maybe like "Copied xxx.jar into <hdfs_path>.".


http://gerrit.cloudera.org:8080/#/c/17842/22/testdata/workloads/functional-query/queries/QueryTest/jdbc-data-source.test
File 
testdata/workloads/functional-query/queries/QueryTest/jdbc-data-source.test:

http://gerrit.cloudera.org:8080/#/c/17842/22/testdata/workloads/functional-query/queries/QueryTest/jdbc-data-source.test@28
PS22, Line 28: 
11,false,1,1,1,10,1.100000023841858,10.1,'01/02/09','1',2009-01-02 
00:11:00.450000000
             : 
12,true,2,2,2,20,2.200000047683716,20.2,'01/02/09','2',2009-01-02 
00:12:00.460000000
             : 
13,false,3,3,3,30,3.299999952316284,30.3,'01/02/09','3',2009-01-02 
00:13:00.480000000
             : 
14,true,4,4,4,40,4.400000095367432,40.4,'01/02/09','4',2009-01-02 
00:14:00.510000000
             : 20,true,0,0,0,0,0,0,'01/03/09','0',2009-01-03 00:20:00.900000000
Tried to run the test myself and I get following error:

-- 2023-10-02 11:22:20,076 INFO     MainThread: Started query 
b548955a0c538511:6d16651b00000000
-- executing against localhost:21000

select *
from alltypes_jdbc_datasource
where id > 10 and int_col< 5 limit 5;

-- 2023-10-02 11:22:20,324 INFO     MainThread: Started query 
95474cb079f2d042:878687c800000000
-- 2023-10-02 11:22:20,439 ERROR    MainThread: Comparing QueryTestResults 
(expected vs actual):
11,false,1,1,1,10,1.100000023841858,10.1,'01/02/09','1',2009-01-02 
00:11:00.450000000 != 
11,false,1,1,1,10,1.100000023841858,10.1,'01/02/09','1',2009-01-02 
08:11:00.450000000
12,true,2,2,2,20,2.200000047683716,20.2,'01/02/09','2',2009-01-02 
00:12:00.460000000 != 
12,true,2,2,2,20,2.200000047683716,20.2,'01/02/09','2',2009-01-02 
08:12:00.460000000
13,false,3,3,3,30,3.299999952316284,30.3,'01/02/09','3',2009-01-02 
00:13:00.480000000 != 
13,false,3,3,3,30,3.299999952316284,30.3,'01/02/09','3',2009-01-02 
08:13:00.480000000
14,true,4,4,4,40,4.400000095367432,40.4,'01/02/09','4',2009-01-02 
00:14:00.510000000 != 
14,true,4,4,4,40,4.400000095367432,40.4,'01/02/09','4',2009-01-02 
08:14:00.510000000
20,true,0,0,0,0,0,0,'01/03/09','0',2009-01-03 00:20:00.900000000 != 
20,true,0,0,0,0,0,0,'01/03/09','0',2009-01-03 08:20:00.900000000

Other test cases passed.
Is there something non-deterministic during data loading?



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I8244e978c7717c6f1452f66f1630b6441392e7d2
Gerrit-Change-Number: 17842
Gerrit-PatchSet: 22
Gerrit-Owner: Fucun Chu <[email protected]>
Gerrit-Reviewer: Abhishek Rawat <[email protected]>
Gerrit-Reviewer: Anonymous Coward <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Fucun Chu <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Riza Suminto <[email protected]>
Gerrit-Reviewer: Wenzhe Zhou <[email protected]>
Gerrit-Comment-Date: Mon, 02 Oct 2023 18:40:24 +0000
Gerrit-HasComments: Yes

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