[
https://issues.apache.org/jira/browse/HIVE-23954?focusedWorklogId=474151&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-474151
]
ASF GitHub Bot logged work on HIVE-23954:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 25/Aug/20 06:03
Start Date: 25/Aug/20 06:03
Worklog Time Spent: 10m
Work Description: EugeneChung edited a comment on pull request #1414:
URL: https://github.com/apache/hive/pull/1414#issuecomment-679795129
It seems the error of init-metastore is not related with my patch.
```
[2020-08-20T11:29:42.268Z] Status: Downloaded newer image for postgres:latest
[2020-08-20T11:31:48.820Z]
3a1dc3a0b3a75eaf727731e23f9967bbc6007831481878432cad7c8354e0c922
[2020-08-20T11:31:48.821Z] waiting for postgres to be available...
[2020-08-20T11:31:48.821Z] psql: FATAL: the database system is starting up
[2020-08-20T11:31:48.821Z] ok
[2020-08-20T11:31:48.821Z] NOTICE: database
"ms_hive_precommit_pr_1414_1_wqrcz_rrtk5_5s4x9" does not exist, skipping
[2020-08-20T11:31:48.821Z] DROP DATABASE
[2020-08-20T11:31:48.821Z] ERROR: role "hive" does not exist
```
http://ci.hive.apache.org/blue/organizations/jenkins/hive-precommit/detail/PR-1414/1/tests
shows all tests were passed.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
Issue Time Tracking
-------------------
Worklog Id: (was: 474151)
Time Spent: 0.5h (was: 20m)
> count(*) with count(distinct) gives wrong results with
> hive.optimize.countdistinct=true
> ---------------------------------------------------------------------------------------
>
> Key: HIVE-23954
> URL: https://issues.apache.org/jira/browse/HIVE-23954
> Project: Hive
> Issue Type: Bug
> Components: Logical Optimizer
> Affects Versions: 3.0.0, 3.1.0
> Reporter: Eugene Chung
> Assignee: Eugene Chung
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-23954.01.patch, HIVE-23954.01.patch
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> {code:java}
> select count(*), count(distinct mid) from db1.table1 where partitioned_column
> = '...'{code}
>
> is not working properly when hive.optimize.countdistinct is true. By default,
> it's true for all 3.x versions.
> In the two plans below, the aggregations part in the Output of Group By
> Operator of Map 1 are different.
>
> - hive.optimize.countdistinct=false
> {code:java}
> +----------------------------------------------------+
> | Explain |
> +----------------------------------------------------+
> | Plan optimized by CBO. |
> | |
> | Vertex dependency in root stage |
> | Reducer 2 <- Map 1 (SIMPLE_EDGE) |
> | |
> | Stage-0 |
> | Fetch Operator |
> | limit:-1 |
> | Stage-1 |
> | Reducer 2 |
> | File Output Operator [FS_7] |
> | Group By Operator [GBY_5] (rows=1 width=24) |
> |
> Output:["_col0","_col1"],aggregations:["count(VALUE._col0)","count(DISTINCT
> KEY._col0:0._col0)"] |
> | <-Map 1 [SIMPLE_EDGE] |
> | SHUFFLE [RS_4] |
> | Group By Operator [GBY_3] (rows=343640771 width=4160) |
> |
> Output:["_col0","_col1","_col2"],aggregations:["count()","count(DISTINCT
> mid)"],keys:mid |
> | Select Operator [SEL_2] (rows=343640771 width=4160) |
> | Output:["mid"] |
> | TableScan [TS_0] (rows=343640771 width=4160) |
> | db1@table1,table1,Tbl:COMPLETE,Col:NONE,Output:["mid"] |
> | |
> +----------------------------------------------------+{code}
>
> - hive.optimize.countdistinct=true
> {code:java}
> +----------------------------------------------------+
> | Explain |
> +----------------------------------------------------+
> | Plan optimized by CBO. |
> | |
> | Vertex dependency in root stage |
> | Reducer 2 <- Map 1 (SIMPLE_EDGE) |
> | |
> | Stage-0 |
> | Fetch Operator |
> | limit:-1 |
> | Stage-1 |
> | Reducer 2 |
> | File Output Operator [FS_7] |
> | Group By Operator [GBY_14] (rows=1 width=16) |
> |
> Output:["_col0","_col1"],aggregations:["count(_col1)","count(_col0)"] |
> | Group By Operator [GBY_11] (rows=343640771 width=4160) |
> |
> Output:["_col0","_col1"],aggregations:["count(VALUE._col0)"],keys:KEY._col0 |
> | <-Map 1 [SIMPLE_EDGE] |
> | SHUFFLE [RS_10] |
> | PartitionCols:_col0 |
> | Group By Operator [GBY_9] (rows=343640771 width=4160) |
> | Output:["_col0","_col1"],aggregations:["count()"],keys:mid |
> | Select Operator [SEL_2] (rows=343640771 width=4160) |
> | Output:["mid"] |
> | TableScan [TS_0] (rows=343640771 width=4160) |
> | db1@table1,table1,Tbl:COMPLETE,Col:NONE,Output:["mid"] |
> | |
> +----------------------------------------------------+
> {code}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
