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https://issues.apache.org/jira/browse/HIVE-22163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16930386#comment-16930386
]
Hive QA commented on HIVE-22163:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 9m
10s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
13s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
45s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 4m
30s{color} | {color:blue} ql in master has 1573 extant Findbugs warnings.
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
6s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
30s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
43s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m
25s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
58s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
14s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 26m 13s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Optional Tests | asflicense javac javadoc findbugs checkstyle compile |
| uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian
3.16.43-2+deb8u5 (2017-09-19) x86_64 GNU/Linux |
| Build tool | maven |
| Personality |
/data/hiveptest/working/yetus_PreCommit-HIVE-Build-18609/dev-support/hive-personality.sh
|
| git revision | master / 1880bc6 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.1 |
| modules | C: ql U: ql |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-18609/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> CBO: Enabling CBO turns on stats estimation, even when the estimation is
> disabled
> ---------------------------------------------------------------------------------
>
> Key: HIVE-22163
> URL: https://issues.apache.org/jira/browse/HIVE-22163
> Project: Hive
> Issue Type: Bug
> Components: CBO
> Reporter: Gopal V
> Assignee: Krisztian Kasa
> Priority: Major
> Attachments: HIVE-22163.1.patch, HIVE-22163.1.patch,
> HIVE-22163.1.patch, HIVE-22163.2.patch, HIVE-22163.3.patch,
> HIVE-22163.4.patch, HIVE-22163.4.patch, HIVE-22163.5.patch,
> HIVE-22163.5.patch, HIVE-22163.5.patch, HIVE-22163.5.patch
>
>
> {code}
> create table claims(claim_rec_id bigint, claim_invoice_num string, typ_c int);
> alter table claims update statistics set
> ('numRows'='1154941534','rawDataSize'='1135307527922');
> set hive.stats.estimate=false;
> explain extended select count(1) from claims where typ_c=3;
> set hive.stats.ndv.estimate.percent=5e-7;
> explain extended select count(1) from claims where typ_c=3;
> {code}
> Expecting the standard /2 for the single filter, but we instead get 5 rows.
> {code}
> ' Map Operator Tree:'
> ' TableScan'
> ' alias: claims'
> ' filterExpr: (typ_c = 3) (type: boolean)'
> ' Statistics: Num rows: 1154941534 Data size: 4388777832
> Basic stats: COMPLETE Column stats: NONE'
> ' GatherStats: false'
> ' Filter Operator'
> ' isSamplingPred: false'
> ' predicate: (typ_c = 3) (type: boolean)'
> ' Statistics: Num rows: 5 Data size: 19 Basic stats:
> COMPLETE Column stats: NONE'
> {code}
> The estimation is in effect, as changing the estimate.percent changes this.
> {code}
> ' filterExpr: (typ_c = 3) (type: boolean)'
> ' Statistics: Num rows: 1154941534 Data size: 4388777832
> Basic stats: COMPLETE Column stats: NONE'
> ' GatherStats: false'
> ' Filter Operator'
> ' isSamplingPred: false'
> ' predicate: (typ_c = 3) (type: boolean)'
> ' Statistics: Num rows: 230988307 Data size: 877755567
> Basic stats: COMPLETE Column stats: NONE'
> {code}
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