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Posted to reviews@spark.apache.org by viirya <gi...@git.apache.org> on 2017/10/05 03:11:38 UTC
[GitHub] spark pull request #19436: [SQL][WIP] Fix FlatMapGroupsInR's child distribut...
GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/19436
[SQL][WIP] Fix FlatMapGroupsInR's child distribution when grouping attributes are empty
## What changes were proposed in this pull request?
Looks like `FlatMapGroupsInRExec.requiredChildDistribution` didn't consider empty grouping attributes.
WIP: Not quite sure if this will cause problem in R side. Add test to see Jenkins test result.
## How was this patch tested?
Added test.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 fix-flatmapinr-distribution
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19436.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #19436
----
commit 6710141767a2df92898af319bc4ef87f9110f911
Author: Liang-Chi Hsieh <vi...@gmail.com>
Date: 2017-10-05T03:08:00Z
Fix FlatMapGroupsInR's child distribution when grouping attributes are empty.
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[GitHub] spark pull request #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work...
Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/19436#discussion_r142901810
--- Diff: R/pkg/tests/fulltests/test_sparkSQL.R ---
@@ -3075,6 +3075,11 @@ test_that("gapply() and gapplyCollect() on a DataFrame", {
df1Collect <- gapplyCollect(df, list("a"), function(key, x) { x })
expect_identical(df1Collect, expected)
+ # gapply on empty grouping columns.
+ dfTwoPartition <- repartition(df, 2L)
+ df1TwoPartition <- gapply(dfTwoPartition, c(), function(key, x) { x }, schema(dfTwoPartition))
+ expect_identical(sort(collect(df1TwoPartition)), sort(expected))
--- End diff --
Actually, I tested these:
```R
df1 <- gapply(df, c(), function(key, x) { x }, schema(df))
actual <- collect(df1)
expect_identical(actual, expected)
```
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[GitHub] spark issue #19436: [SQL][WIP] Fix FlatMapGroupsInR's child distribution whe...
Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on the issue:
https://github.com/apache/spark/pull/19436
LGTM mind opening a JIRA?
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:
https://github.com/apache/spark/pull/19436
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[GitHub] spark pull request #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work...
Posted by viirya <gi...@git.apache.org>.
Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/19436#discussion_r142850005
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/objects.scala ---
@@ -394,7 +394,11 @@ case class FlatMapGroupsInRExec(
override def producedAttributes: AttributeSet = AttributeSet(outputObjAttr)
override def requiredChildDistribution: Seq[Distribution] =
- ClusteredDistribution(groupingAttributes) :: Nil
+ if (groupingAttributes.isEmpty) {
+ AllTuples :: Nil
--- End diff --
You mean empty grouping attributes == all tuples? Yeah, I think no grouping attributes means all tuples are in the one group.
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[GitHub] spark issue #19436: [SQL][WIP] Fix FlatMapGroupsInR's child distribution whe...
Posted by viirya <gi...@git.apache.org>.
Github user viirya commented on the issue:
https://github.com/apache/spark/pull/19436
@HyukjinKwon Yeah, wait me few minutes. Thanks.
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[GitHub] spark issue #19436: [SQL][WIP] Fix FlatMapGroupsInR's child distribution whe...
Posted by viirya <gi...@git.apache.org>.
Github user viirya commented on the issue:
https://github.com/apache/spark/pull/19436
Ok. The added test works to verify this is an issue. See the test result of https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/82468/testReport.
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
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[GitHub] spark pull request #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work...
Posted by asfgit <gi...@git.apache.org>.
Github user asfgit closed the pull request at:
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:
https://github.com/apache/spark/pull/19436
**[Test build #82472 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/82472/testReport)** for PR 19436 at commit [`0e111a8`](https://github.com/apache/spark/commit/0e111a8d095c9ecdb9fb8249332b9e12c15e8fce).
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
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**[Test build #82473 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/82473/testReport)** for PR 19436 at commit [`0e111a8`](https://github.com/apache/spark/commit/0e111a8d095c9ecdb9fb8249332b9e12c15e8fce).
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
Posted by viirya <gi...@git.apache.org>.
Github user viirya commented on the issue:
https://github.com/apache/spark/pull/19436
Thanks @HyukjinKwon @felixcheung
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
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Github user SparkQA commented on the issue:
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
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* This patch passes all tests.
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* This patch adds no public classes.
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[GitHub] spark pull request #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work...
Posted by viirya <gi...@git.apache.org>.
Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/19436#discussion_r142903183
--- Diff: R/pkg/tests/fulltests/test_sparkSQL.R ---
@@ -3075,6 +3075,11 @@ test_that("gapply() and gapplyCollect() on a DataFrame", {
df1Collect <- gapplyCollect(df, list("a"), function(key, x) { x })
expect_identical(df1Collect, expected)
+ # gapply on empty grouping columns.
+ dfTwoPartition <- repartition(df, 2L)
+ df1TwoPartition <- gapply(dfTwoPartition, c(), function(key, x) { x }, schema(dfTwoPartition))
+ expect_identical(sort(collect(df1TwoPartition)), sort(expected))
--- End diff --
Ok. Let me use your test code. I don't want to block this PR. Thanks.
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[GitHub] spark issue #19436: [SQL][WIP] Fix FlatMapGroupsInR's child distribution whe...
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
Posted by viirya <gi...@git.apache.org>.
Github user viirya commented on the issue:
https://github.com/apache/spark/pull/19436
retest this please.
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on the issue:
https://github.com/apache/spark/pull/19436
Merged to master, branch-2.2 and branch-2.1.
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[GitHub] spark issue #19436: [SQL][WIP] Fix FlatMapGroupsInR's child distribution whe...
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[GitHub] spark pull request #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work...
Posted by felixcheung <gi...@git.apache.org>.
Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/19436#discussion_r142849580
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/objects.scala ---
@@ -394,7 +394,11 @@ case class FlatMapGroupsInRExec(
override def producedAttributes: AttributeSet = AttributeSet(outputObjAttr)
override def requiredChildDistribution: Seq[Distribution] =
- ClusteredDistribution(groupingAttributes) :: Nil
+ if (groupingAttributes.isEmpty) {
+ AllTuples :: Nil
--- End diff --
should empty == all?
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:
https://github.com/apache/spark/pull/19436
**[Test build #82470 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/82470/testReport)** for PR 19436 at commit [`6710141`](https://github.com/apache/spark/commit/6710141767a2df92898af319bc4ef87f9110f911).
* This patch **fails due to an unknown error code, -9**.
* This patch merges cleanly.
* This patch adds no public classes.
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[GitHub] spark issue #19436: [SQL][WIP] Fix FlatMapGroupsInR's child distribution whe...
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Github user SparkQA commented on the issue:
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[GitHub] spark pull request #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work...
Posted by viirya <gi...@git.apache.org>.
Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/19436#discussion_r142902434
--- Diff: R/pkg/tests/fulltests/test_sparkSQL.R ---
@@ -3075,6 +3075,11 @@ test_that("gapply() and gapplyCollect() on a DataFrame", {
df1Collect <- gapplyCollect(df, list("a"), function(key, x) { x })
expect_identical(df1Collect, expected)
+ # gapply on empty grouping columns.
+ dfTwoPartition <- repartition(df, 2L)
+ df1TwoPartition <- gapply(dfTwoPartition, c(), function(key, x) { x }, schema(dfTwoPartition))
+ expect_identical(sort(collect(df1TwoPartition)), sort(expected))
--- End diff --
hmm, I think it should work. `repartition` is not necessary. I'm just wondering how to test this in R...
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
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[GitHub] spark issue #19436: [SQL][WIP] Fix FlatMapGroupsInR's child distribution whe...
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[GitHub] spark issue #19436: [SPARK-22206][SQL][SparkR] gapply in R can't work on emp...
Posted by viirya <gi...@git.apache.org>.
Github user viirya commented on the issue:
https://github.com/apache/spark/pull/19436
Let me install R environment to test it locally...
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