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Posted to reviews@spark.apache.org by HyukjinKwon <gi...@git.apache.org> on 2017/02/10 05:05:27 UTC

[GitHub] spark pull request #16882: [SPARK-19544][SQL] Improve error message when som...

GitHub user HyukjinKwon opened a pull request:

    https://github.com/apache/spark/pull/16882

    [SPARK-19544][SQL] Improve error message when some column types are compatible and others are not in set/union operations

    ## What changes were proposed in this pull request?
    
    This PR proposes to fix the error message when some data types are compatible and others are not in set/union operation.
    
    ```scala
    Seq((1,("a", 1))).toDF.union(Seq((1L,("a", "b"))).toDF)
    ```
    
    **Before**
    
    ```
    Union can only be performed on tables with the compatible column types.
    LongType <> IntegerType at the first column of the second table;;
    ```
    
    **After**
    
    ```
    Union can only be performed on tables with the compatible column types. 
    StructType(StructField(_1,StringType,true), StructField(_2,StringType,true)) <> StructType(StructField(_1,StringType,true), StructField(_2,IntegerType,false)) at the second column of the second table;;
    ```
    
    ## How was this patch tested?
    
    Unit tests in `AnalysisErrorSuite` and manual tests.


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/HyukjinKwon/spark SPARK-19544

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/spark/pull/16882.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 #16882
    
----
commit 07e698415bb6a48e60cd2359cd9d412c2f61e48b
Author: hyukjinkwon <gu...@gmail.com>
Date:   2017-02-10T05:01:16Z

    Improve error message when some column types are compatible and others are not in set/union operations

----


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Merged build finished. Test PASSed.


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[GitHub] spark pull request #16882: [SPARK-19544][SQL] Improve error message when som...

Posted by hvanhovell <gi...@git.apache.org>.
Github user hvanhovell commented on a diff in the pull request:

    https://github.com/apache/spark/pull/16882#discussion_r100774050
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala ---
    @@ -321,12 +321,12 @@ trait CheckAnalysis extends PredicateHelper {
                   // Check if the data types match.
                   dataTypes(child).zip(ref).zipWithIndex.foreach { case ((dt1, dt2), ci) =>
                     // SPARK-18058: we shall not care about the nullability of columns
    -                if (!dt1.sameType(dt2)) {
    +                if (TypeCoercion.findWiderTypeForTwo(dt1.asNullable, dt2.asNullable).isEmpty) {
                       failAnalysis(
                         s"""
                           |${operator.nodeName} can only be performed on tables with the compatible
    -                      |column types. $dt1 <> $dt2 at the ${ordinalNumber(ci)} column of
    -                      |the ${ordinalNumber(ti + 1)} table
    +                      |column types. ${dt1.simpleString} <> ${dt2.simpleString} at the
    --- End diff --
    
    `StructType.simpleString` gets truncated, so it might be hard/impossible to find the error. Can you use `StructType.catalogString`?
    
    For better UX it might be an idea to render the path to the offending variable, instead of printing the entire struct.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Test PASSed.
    Refer to this link for build results (access rights to CI server needed): 
    https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/72817/
    Test PASSed.


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[GitHub] spark pull request #16882: [SPARK-19544][SQL] Improve error message when som...

Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on a diff in the pull request:

    https://github.com/apache/spark/pull/16882#discussion_r100683913
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TypeCoercion.scala ---
    @@ -116,7 +116,7 @@ object TypeCoercion {
        * i.e. the main difference with [[findTightestCommonType]] is that here we allow some
        * loss of precision when widening decimal and double, and promotion to string.
        */
    -  private def findWiderTypeForTwo(t1: DataType, t2: DataType): Option[DataType] = (t1, t2) match {
    --- End diff --
    
    (Added)


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72693 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72693/testReport)** for PR 16882 at commit [`20b8e77`](https://github.com/apache/spark/commit/20b8e77cea6a45d0a4944288cb78fce280fb754d).


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72701 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72701/testReport)** for PR 16882 at commit [`20b8e77`](https://github.com/apache/spark/commit/20b8e77cea6a45d0a4944288cb78fce280fb754d).


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Oh, sure. Let me give a shot. Thank you for your quick review!


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Test FAILed.
    Refer to this link for build results (access rights to CI server needed): 
    https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/72683/
    Test FAILed.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72817 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72817/testReport)** for PR 16882 at commit [`4ef5c07`](https://github.com/apache/spark/commit/4ef5c07dc4bc7b4ba28f3fa2dcc13ad731b2e779).


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[GitHub] spark pull request #16882: [SPARK-19544][SQL] Improve error message when som...

Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on a diff in the pull request:

    https://github.com/apache/spark/pull/16882#discussion_r100667599
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala ---
    @@ -321,12 +321,12 @@ trait CheckAnalysis extends PredicateHelper {
                   // Check if the data types match.
                   dataTypes(child).zip(ref).zipWithIndex.foreach { case ((dt1, dt2), ci) =>
                     // SPARK-18058: we shall not care about the nullability of columns
    -                if (!dt1.sameType(dt2)) {
    +                if (TypeCoercion.findWiderTypeForTwo(dt1.asNullable, dt2.asNullable).isEmpty) {
                       failAnalysis(
                         s"""
                           |${operator.nodeName} can only be performed on tables with the compatible
    -                      |column types. $dt1 <> $dt2 at the ${ordinalNumber(ci)} column of
    -                      |the ${ordinalNumber(ti + 1)} table
    +                      |column types. ${dt1.simpleString} <> ${dt2.simpleString} at the
    --- End diff --
    
    (I used `simpleString` for consistency with other codes in this)


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[GitHub] spark pull request #16882: [SPARK-19544][SQL] Improve error message when som...

Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on a diff in the pull request:

    https://github.com/apache/spark/pull/16882#discussion_r100779764
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala ---
    @@ -321,12 +321,12 @@ trait CheckAnalysis extends PredicateHelper {
                   // Check if the data types match.
                   dataTypes(child).zip(ref).zipWithIndex.foreach { case ((dt1, dt2), ci) =>
                     // SPARK-18058: we shall not care about the nullability of columns
    -                if (!dt1.sameType(dt2)) {
    +                if (TypeCoercion.findWiderTypeForTwo(dt1.asNullable, dt2.asNullable).isEmpty) {
                       failAnalysis(
                         s"""
                           |${operator.nodeName} can only be performed on tables with the compatible
    -                      |column types. $dt1 <> $dt2 at the ${ordinalNumber(ci)} column of
    -                      |the ${ordinalNumber(ti + 1)} table
    +                      |column types. ${dt1.simpleString} <> ${dt2.simpleString} at the
    --- End diff --
    
    Sure, let me change.


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[GitHub] spark pull request #16882: [SPARK-19544][SQL] Improve error message when som...

Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on a diff in the pull request:

    https://github.com/apache/spark/pull/16882#discussion_r100683242
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TypeCoercion.scala ---
    @@ -116,7 +116,7 @@ object TypeCoercion {
        * i.e. the main difference with [[findTightestCommonType]] is that here we allow some
        * loss of precision when widening decimal and double, and promotion to string.
        */
    -  private def findWiderTypeForTwo(t1: DataType, t2: DataType): Option[DataType] = (t1, t2) match {
    --- End diff --
    
    Sure!


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72683 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72683/testReport)** for PR 16882 at commit [`07e6984`](https://github.com/apache/spark/commit/07e698415bb6a48e60cd2359cd9d412c2f61e48b).


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by hvanhovell <gi...@git.apache.org>.
Github user hvanhovell commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    @HyukjinKwon Can you also improve the error message. I don't think `StructType(StructField(_1,StringType,true), StructField(_2,StringType,true)) <> StructType(StructField(_1,StringType,true), StructField(_2,IntegerType,false))` is readable at all. Can we use catalog string instead?
    
    Other than that, this looks fine.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Merged build finished. Test FAILed.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Thank you @hvanhovell


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[GitHub] spark pull request #16882: [SPARK-19544][SQL] Improve error message when som...

Posted by dongjoon-hyun <gi...@git.apache.org>.
Github user dongjoon-hyun commented on a diff in the pull request:

    https://github.com/apache/spark/pull/16882#discussion_r100681737
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TypeCoercion.scala ---
    @@ -116,7 +116,7 @@ object TypeCoercion {
        * i.e. the main difference with [[findTightestCommonType]] is that here we allow some
        * loss of precision when widening decimal and double, and promotion to string.
        */
    -  private def findWiderTypeForTwo(t1: DataType, t2: DataType): Option[DataType] = (t1, t2) match {
    --- End diff --
    
    Hi, @HyukjinKwon .
    `private[analysis]`?


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Merged build finished. Test FAILed.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Merged build finished. Test PASSed.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Merged build finished. Test PASSed.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72683 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72683/testReport)** for PR 16882 at commit [`07e6984`](https://github.com/apache/spark/commit/07e698415bb6a48e60cd2359cd9d412c2f61e48b).
     * This patch **fails Spark unit tests**.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    cc @hvanhovell could you please take a look?


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Test PASSed.
    Refer to this link for build results (access rights to CI server needed): 
    https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/72756/
    Test PASSed.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Test FAILed.
    Refer to this link for build results (access rights to CI server needed): 
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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72817 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72817/testReport)** for PR 16882 at commit [`4ef5c07`](https://github.com/apache/spark/commit/4ef5c07dc4bc7b4ba28f3fa2dcc13ad731b2e779).
     * This patch passes all tests.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Test PASSed.
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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Merged build finished. Test FAILed.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Test FAILed.
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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Test FAILed.
    Refer to this link for build results (access rights to CI server needed): 
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    Test FAILed.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by hvanhovell <gi...@git.apache.org>.
Github user hvanhovell commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    LGTM - merging to master. Thanks!


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72692 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72692/testReport)** for PR 16882 at commit [`073c6f9`](https://github.com/apache/spark/commit/073c6f9d6198e1a98ccae4e9f62af2c6a3619aaa).


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72756 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72756/testReport)** for PR 16882 at commit [`03ec9de`](https://github.com/apache/spark/commit/03ec9dea7ddb923b2095c8e373f21d640a1300fd).
     * This patch passes all tests.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72737 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72737/testReport)** for PR 16882 at commit [`ad2fe5f`](https://github.com/apache/spark/commit/ad2fe5f61bb452f95d314c6b144b1f211eee06dc).


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72701 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72701/testReport)** for PR 16882 at commit [`20b8e77`](https://github.com/apache/spark/commit/20b8e77cea6a45d0a4944288cb78fce280fb754d).
     * This patch passes all tests.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Merged build finished. Test PASSed.


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[GitHub] spark pull request #16882: [SPARK-19544][SQL] Improve error message when som...

Posted by asfgit <gi...@git.apache.org>.
Github user asfgit closed the pull request at:

    https://github.com/apache/spark/pull/16882


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    retest this please


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    Test PASSed.
    Refer to this link for build results (access rights to CI server needed): 
    https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/72701/
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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72691 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72691/testReport)** for PR 16882 at commit [`c2fe413`](https://github.com/apache/spark/commit/c2fe413fb56804e486c651025ef8c860da3996a8).


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72737 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72737/testReport)** for PR 16882 at commit [`ad2fe5f`](https://github.com/apache/spark/commit/ad2fe5f61bb452f95d314c6b144b1f211eee06dc).
     * This patch passes all tests.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #16882: [SPARK-19544][SQL] Improve error message when some colum...

Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/16882
  
    **[Test build #72756 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/72756/testReport)** for PR 16882 at commit [`03ec9de`](https://github.com/apache/spark/commit/03ec9dea7ddb923b2095c8e373f21d640a1300fd).


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