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Hive QA commented on HIVE-16255: -------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || 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} 8m 38s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 6s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 38s{color} | {color:green} master passed {color} | | {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 3m 51s{color} | {color:blue} ql in master has 2310 extant Findbugs warnings. {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 56s{color} | {color:green} master passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 23s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 0s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 0s{color} | {color:green} the patch passed {color} | | {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 38s{color} | {color:red} ql: The patch generated 48 new + 72 unchanged - 0 fixed = 120 total (was 72) {color} | | {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s{color} | {color:green} The patch has no whitespace issues. {color} | | {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 4m 1s{color} | {color:red} ql generated 3 new + 2310 unchanged - 0 fixed = 2313 total (was 2310) {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 54s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m 13s{color} | {color:red} The patch generated 1 ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 23m 40s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | FindBugs | module:ql | | | org.apache.hadoop.hive.ql.udf.generic.GenericUDAFPercentileCont$DoubleComparator implements Comparator but not Serializable At GenericUDAFPercentileCont.java:Serializable At GenericUDAFPercentileCont.java:[lines 109-114] | | | org.apache.hadoop.hive.ql.udf.generic.GenericUDAFPercentileCont$LongComparator implements Comparator but not Serializable At GenericUDAFPercentileCont.java:Serializable At GenericUDAFPercentileCont.java:[lines 101-105] | | | org.apache.hadoop.hive.ql.udf.generic.GenericUDAFPercentileCont$PercentileContEvaluator.terminatePartial(GenericUDAFEvaluator$AggregationBuffer) may expose internal representation by returning GenericUDAFPercentileCont$PercentileContEvaluator.partialResult At GenericUDAFPercentileCont.java:by returning GenericUDAFPercentileCont$PercentileContEvaluator.partialResult At GenericUDAFPercentileCont.java:[line 186] | \\ \\ || 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-15338/dev-support/hive-personality.sh | | git revision | master / 4e41560 | | Default Java | 1.8.0_111 | | findbugs | v3.0.0 | | checkstyle | http://104.198.109.242/logs//PreCommit-HIVE-Build-15338/yetus/diff-checkstyle-ql.txt | | findbugs | http://104.198.109.242/logs//PreCommit-HIVE-Build-15338/yetus/new-findbugs-ql.html | | asflicense | http://104.198.109.242/logs//PreCommit-HIVE-Build-15338/yetus/patch-asflicense-problems.txt | | modules | C: ql U: ql | | Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-15338/yetus.txt | | Powered by | Apache Yetus http://yetus.apache.org | This message was automatically generated. > Support percentile_cont / percentile_disc > ----------------------------------------- > > Key: HIVE-16255 > URL: https://issues.apache.org/jira/browse/HIVE-16255 > Project: Hive > Issue Type: Sub-task > Components: SQL > Reporter: Carter Shanklin > Assignee: Laszlo Bodor > Priority: Major > Attachments: HIVE-16255.01.patch, HIVE-16255.02.patch > > > Way back in HIVE-259, a percentile function was added that provides a subset > of the standard percentile_cont aggregate function. > The SQL standard provides some additional options and also a percentile_disc > aggregate function with different rules. In the standard you specify an > ordering with arbitrary value expression and the results are drawn from this > value expression. This aggregate functions should be usable as analytic > functions as well (i.e. support the over clause). The current percentile > function is able to be used with an over clause. > The rough outline of how this works is: > percentile_cont(number) within group (order by expression) [ over(window > spec) ] > percentile_disc(number) within group (order by expression) [ over(window > spec) ] > The value of number should be between 0 and 1. The value expression is > evaluated for each row of the group, nulls are discarded, and the remaining > rows are ordered. > — If PERCENTILE_CONT is specified, by considering the pair of consecutive > rows that are indicated by the argument, treated as a fraction of the total > number of rows in the group, and interpolating the value of the value > expression evaluated for these rows. > — If PERCENTILE_DISC is specified, by treating the group as a window > partition of the CUME_DIST window function, using the specified ordering of > the value expression as the window ordering, and returning the first value > expression whose cumulative distribution value is greater than or equal to > the argument. -- This message was sent by Atlassian JIRA (v7.6.3#76005)