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https://issues.apache.org/jira/browse/HIVE-20284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16565064#comment-16565064
 ] 

Hive QA commented on HIVE-20284:
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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:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
31s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  8m 
11s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
23s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
56s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m 
34s{color} | {color:blue} common in master has 64 extant Findbugs warnings. 
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| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  4m  
8s{color} | {color:blue} ql in master has 2301 extant Findbugs warnings. 
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| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
12s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
10s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
44s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
29s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m 
29s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
55s{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}  5m 
10s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
13s{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. 
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| {color:black}{color} | {color:black} {color} | {color:black} 28m 31s{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 
3.16.36-1+deb8u1 (2016-09-03) x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/data/hiveptest/working/yetus_PreCommit-HIVE-Build-12981/dev-support/hive-personality.sh
 |
| git revision | master / 4d43695 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| modules | C: common ql U: . |
| Console output | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-12981/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> In strict mode, if constant propagation is enable, the partition filter is 
> folded before partition pruner lead to error "No partition predicate for 
> Alias"  
> ------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-20284
>                 URL: https://issues.apache.org/jira/browse/HIVE-20284
>             Project: Hive
>          Issue Type: Improvement
>          Components: CLI
>    Affects Versions: 1.2.1, 2.3.3
>            Reporter: Hui Huang
>            Assignee: Hui Huang
>            Priority: Trivial
>             Fix For: 2.3.3, 4.0.0
>
>         Attachments: HIVE-20284.1.patch, HIVE-20284.patch
>
>
> In strict mode and the hive.optimize.constant.propagation is set to true, the 
> following sql will failed:
> {code:java}
> hive> desc employee_part;
> OK
> col_name      data_type       comment
> eid                   int
> name                  string
> dept                  string
> year                  string
> month                 string
> # Partition Information
> # col_name                    data_type               comment
> year                  string
> month                 string
> Time taken: 0.564 seconds, Fetched: 11 row(s)
> hive> set hive.mapred.mode=strict;
> hive> select * from employee_part where false and concat(year,month)='201807';
> FAILED: SemanticException Queries against partitioned tables without a 
> partition filter are disabled for safety reasons. If you know what you are 
> doing, please sethive.strict.checks.large.query to false and that 
> hive.mapred.mode is not set to 'strict' to proceed. Note that if you may get 
> errors or incorrect results if you make a mistake while using some of the 
> unsafe features. No partition predicate for Alias "employee_part" Table 
> "employee_part"
> {code}
> The above error msg is confusing,  concat(year,month)='201807' is the 
> partition filter。
> The reason is during logic optimization, the ConstantPropagate optimizer is 
> running before partitionPruner optimizer, when found a express like 'false 
> and concat(year,month)=xxxx', the express is replaced with 'fasle' , and the 
> partition filter is dropped. So the PartitionPruner can not get the partition 
> filter.
> Users can remove the constant express that always has true/false values to 
> work around.
> When views used, if some columns are constant values, users  will be  
> confusing.
> So we should add some more message in the error msg returned.



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