[HIVE-23095] NDV might be overestimated for a table with ~70 value - ASF JIRA

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Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 4.0.0-alpha-1
Component/s: None
Labels:
- pull-request-available

Description

uncovered during looking into ~~HIVE-23082~~
https://issues.apache.org/jira/browse/HIVE-23082?focusedCommentId=17067773&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17067773

Attachments

Attachments

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HIVE-23095.01.patch
31/Mar/20 11:44
15 kB
Zoltan Haindrich
HIVE-23095.02.patch
31/Mar/20 11:48
15 kB
Zoltan Haindrich
HIVE-23095.03.patch
01/Apr/20 06:43
126 kB
Zoltan Haindrich
HIVE-23095.04.patch
03/Apr/20 05:54
126 kB
Zoltan Haindrich
HIVE-23095.04.patch
02/Apr/20 08:21
126 kB
Zoltan Haindrich
HIVE-23095.04.patch
01/Apr/20 07:01
126 kB
Zoltan Haindrich
HIVE-23095.05.patch
06/Apr/20 16:20
142 kB
Zoltan Haindrich
hll-bench.md
06/Apr/20 16:25
4 kB
Zoltan Haindrich

Issue Links

is caused by

HIVE-19578 HLL merges tempList on every add

Closed

relates to

HIVE-23082 PK/FK stat rescale doesn't work in some cases

Closed

links to

GitHub Pull Request #964

GitHub Pull Request #2783

Activity

People

Assignee:: Zoltan Haindrich

Reporter:: Zoltan Haindrich

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Dates

Created:: 27/Mar/20 15:10

Updated:: 17/Nov/22 08:49

Resolved:: 23/Nov/21 08:04

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