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Posted to reviews@spark.apache.org by maropu <gi...@git.apache.org> on 2016/06/22 14:51:24 UTC

[GitHub] spark pull request #13847: [SPARK-16135][SQL] Implement hashCode and euqals ...

GitHub user maropu opened a pull request:

    https://github.com/apache/spark/pull/13847

    [SPARK-16135][SQL] Implement hashCode and euqals in UnsafeMapData

    ## What changes were proposed in this pull request?
    This pr to implement `hashCode` and `euqals` in `UnsafeMapData` because of the `==` behaivour of `UnsafeMapData` is different from that of `ArrayBasedMapData`.
    
    ## How was this patch tested?
    Add a new test suite `MapDataSuite` for comparison tests.
    
    


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

    $ git pull https://github.com/maropu/spark UnsafeMapTest

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

    https://github.com/apache/spark/pull/13847.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 #13847
    
----
commit 50f8be3e06186e6bbe1404800db1fb226a9e1c5c
Author: Takeshi YAMAMURO <li...@gmail.com>
Date:   2016-06-22T12:12:47Z

    Add tests for UnsafeMapData

----


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    Merged build finished. Test PASSed.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61175 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61175/consoleFull)** for PR 13847 at commit [`8ada73c`](https://github.com/apache/spark/commit/8ada73c8411f01b45d5f89e8c2fd48cb2a2725d3).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61052 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61052/consoleFull)** for PR 13847 at commit [`e8eaf70`](https://github.com/apache/spark/commit/e8eaf7042ceaf6ff1c420be666daad43e24499ce).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    Merged build finished. Test FAILed.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    I think we don't need to implement `equals` and `hashCode` for map type, as map type doesn't support equality and ordering by design, see https://issues.apache.org/jira/browse/SPARK-9415
    
    We should remove the `equals` and `hashCode` on `ArrayBasedMapData` and fix tests if needed


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[GitHub] spark pull request #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ...

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

    https://github.com/apache/spark/pull/13847


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    @maropu I think you also need to add these methods to `UnsafeArray` for this to work.
    
    Where in the spark code base do we compare two (unsafe) `MapData` objects? Or are you comparing these in your own code?


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    Merged build finished. Test PASSed.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    Merged build finished. Test FAILed.


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[GitHub] spark pull request #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ...

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

    https://github.com/apache/spark/pull/13847#discussion_r68473333
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/MapData.scala ---
    @@ -39,4 +39,7 @@ abstract class MapData extends Serializable {
           i += 1
         }
       }
    +
    +  // `MapData` should not implement `equals` and `hashCode` because the type cannot be used as join
    --- End diff --
    
    okay


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61208 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61208/consoleFull)** for PR 13847 at commit [`e4b1384`](https://github.com/apache/spark/commit/e4b138403859ff1662a50a88279dd653a7258c62).
     * This patch passes all tests.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    Merged build finished. Test PASSed.


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[GitHub] spark pull request #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ...

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

    https://github.com/apache/spark/pull/13847#discussion_r68386214
  
    --- Diff: sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/CodeGenerationSuite.scala ---
    @@ -115,7 +115,7 @@ class CodeGenerationSuite extends SparkFunSuite with ExpressionEvalHelper {
           new GenericArrayData(0 until length),
           new GenericArrayData(Seq.fill(length)(true))))
     
    -    if (!checkResult(actual, expected)) {
    +    if (!actual.zip(expected).forall { case (data, answer) => checkResult(data, answer)}) {
    --- End diff --
    
    okay, I'll try to replace it.


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[GitHub] spark pull request #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ...

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

    https://github.com/apache/spark/pull/13847#discussion_r68490096
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/MapData.scala ---
    @@ -19,6 +19,10 @@ package org.apache.spark.sql.catalyst.util
     
     import org.apache.spark.sql.types.DataType
     
    +/**
    + * `MapData` should not implement `equals` and `hashCode` because the type cannot be used as join
    --- End diff --
    
    okay, how about this?


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    Test FAILed.
    Refer to this link for build results (access rights to CI server needed): 
    https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/61052/
    Test FAILed.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    You could also just also use the approach taken in `UnsafeRow`.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61052 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61052/consoleFull)** for PR 13847 at commit [`e8eaf70`](https://github.com/apache/spark/commit/e8eaf7042ceaf6ff1c420be666daad43e24499ce).
     * This patch **fails to build**.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61208 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61208/consoleFull)** for PR 13847 at commit [`e4b1384`](https://github.com/apache/spark/commit/e4b138403859ff1662a50a88279dd653a7258c62).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    LGTM


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    Do we need to hash all values? This could be a performance issue if `hashCode` is called frequently on very large arrays.
    
    Story: MLlib had some performance issues caused by `Vector.hashCode`, which is called during Pyrolite serialization. It saves the Vector as the key in a hash map to avoid re-serialization of the same object. But the `hashCode` costs almost the same as re-serialization.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    Test PASSed.
    Refer to this link for build results (access rights to CI server needed): 
    https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/61208/
    Test PASSed.


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[GitHub] spark pull request #13847: [SPARK-16135][SQL] Implement hashCode and euqals ...

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

    https://github.com/apache/spark/pull/13847#discussion_r68100372
  
    --- Diff: sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeArrayData.java ---
    @@ -298,6 +298,10 @@ public UnsafeMapData getMap(int ordinal) {
         return map;
       }
     
    +  // This `hashCode` computation could consume much processor time for large data.
    +  // If the computation becomes a bottleneck, we can use a light-weight logic; the first fixed bytes
    +  // are used to compute `hashCode` (See `Vector.hashCode`).
    +  // The same issue exists in `UnsafeMapData.hashCode`.
    --- End diff --
    
    okay, I'll add now.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61168 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61168/consoleFull)** for PR 13847 at commit [`431a3fe`](https://github.com/apache/spark/commit/431a3fed713c401e0c75931ad8d90b110882d2c4).


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[GitHub] spark pull request #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ...

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

    https://github.com/apache/spark/pull/13847#discussion_r68385353
  
    --- Diff: sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/CodeGenerationSuite.scala ---
    @@ -115,7 +115,7 @@ class CodeGenerationSuite extends SparkFunSuite with ExpressionEvalHelper {
           new GenericArrayData(0 until length),
           new GenericArrayData(Seq.fill(length)(true))))
     
    -    if (!checkResult(actual, expected)) {
    +    if (!actual.zip(expected).forall { case (data, answer) => checkResult(data, answer)}) {
    --- End diff --
    
    can we turn map data in `actual` to scala map and compare it with `expected`? (also use scala map in `expected`)


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61038 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61038/consoleFull)** for PR 13847 at commit [`50f8be3`](https://github.com/apache/spark/commit/50f8be3e06186e6bbe1404800db1fb226a9e1c5c).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #3126 has started](https://amplab.cs.berkeley.edu/jenkins/job/NewSparkPullRequestBuilder/3126/consoleFull)** for PR 13847 at commit [`b6bac43`](https://github.com/apache/spark/commit/b6bac43eb2857def9b1e98e47cd30539f0e59945).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    retest this please


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    Merged build finished. Test PASSed.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    Thx, good direction. The current master doesn't throw any exception in an analyzer when map-typed data are passed into `collect_set`/`collect_list`. Probably, should we check the case in there?
    https://github.com/apache/spark/pull/13802/files#diff-4b06b5fe0cedf425de14469d1356d6ecR474


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Posted by AmplabJenkins <gi...@git.apache.org>.
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    https://github.com/apache/spark/pull/13847
  
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Posted by AmplabJenkins <gi...@git.apache.org>.
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    https://github.com/apache/spark/pull/13847
  
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    thanks, merging to master/2.0!


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    okay, I'm fixing now.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

Posted by AmplabJenkins <gi...@git.apache.org>.
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    https://github.com/apache/spark/pull/13847
  
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61173 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61173/consoleFull)** for PR 13847 at commit [`78b57c6`](https://github.com/apache/spark/commit/78b57c608609688ec5a25f2df619ec3706dcdfa2).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

Posted by AmplabJenkins <gi...@git.apache.org>.
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    https://github.com/apache/spark/pull/13847
  
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    https://github.com/apache/spark/pull/13847
  
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61174 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61174/consoleFull)** for PR 13847 at commit [`2feb984`](https://github.com/apache/spark/commit/2feb984a656dabad298d1108478b459d3d320722).
     * This patch passes all tests.
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     * This patch adds no public classes.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    looks pretty good, thanks for working on it!


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

Posted by AmplabJenkins <gi...@git.apache.org>.
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    https://github.com/apache/spark/pull/13847
  
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    thanks, merging to master/2.0!


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    okay, done.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61298 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61298/consoleFull)** for PR 13847 at commit [`902fe5f`](https://github.com/apache/spark/commit/902fe5fdf3ef9379252b7e8f7eaeaeaa6dd8759d).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61237 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61237/consoleFull)** for PR 13847 at commit [`902fe5f`](https://github.com/apache/spark/commit/902fe5fdf3ef9379252b7e8f7eaeaeaa6dd8759d).
     * This patch passes all tests.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61053 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61053/consoleFull)** for PR 13847 at commit [`b6bac43`](https://github.com/apache/spark/commit/b6bac43eb2857def9b1e98e47cd30539f0e59945).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    Test PASSed.
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61038 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61038/consoleFull)** for PR 13847 at commit [`50f8be3`](https://github.com/apache/spark/commit/50f8be3e06186e6bbe1404800db1fb226a9e1c5c).
     * This patch passes all tests.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61093 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61093/consoleFull)** for PR 13847 at commit [`827785d`](https://github.com/apache/spark/commit/827785d1dc104ee1eeed93178bdfae4f7df92845).
     * This patch **fails Spark unit tests**.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61175 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61175/consoleFull)** for PR 13847 at commit [`8ada73c`](https://github.com/apache/spark/commit/8ada73c8411f01b45d5f89e8c2fd48cb2a2725d3).
     * This patch passes all tests.
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61174 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61174/consoleFull)** for PR 13847 at commit [`2feb984`](https://github.com/apache/spark/commit/2feb984a656dabad298d1108478b459d3d320722).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

Posted by AmplabJenkins <gi...@git.apache.org>.
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    https://github.com/apache/spark/pull/13847
  
    Merged build finished. Test FAILed.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61298 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61298/consoleFull)** for PR 13847 at commit [`902fe5f`](https://github.com/apache/spark/commit/902fe5fdf3ef9379252b7e8f7eaeaeaa6dd8759d).
     * This patch passes all tests.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    At least, we'd be better to leave comments for that.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61178 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61178/consoleFull)** for PR 13847 at commit [`d95824b`](https://github.com/apache/spark/commit/d95824b9e56fe8e1e364dfe4573113a248d52ece).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

Posted by AmplabJenkins <gi...@git.apache.org>.
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    https://github.com/apache/spark/pull/13847
  
    Merged build finished. Test PASSed.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61093 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61093/consoleFull)** for PR 13847 at commit [`827785d`](https://github.com/apache/spark/commit/827785d1dc104ee1eeed93178bdfae4f7df92845).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    Yeah you are right about `UnsafeArrayData` (my bad).
    
    I would take the same approach as `UnsafeRow`.


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[GitHub] spark pull request #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ...

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

    https://github.com/apache/spark/pull/13847#discussion_r68487696
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/MapData.scala ---
    @@ -19,6 +19,10 @@ package org.apache.spark.sql.catalyst.util
     
     import org.apache.spark.sql.types.DataType
     
    +/**
    + * `MapData` should not implement `equals` and `hashCode` because the type cannot be used as join
    --- End diff --
    
    it's not your fault, but I think we need to add some comment for `MapData` itself, and then follows this comment as a note. We can simply say: `An internal data representation for map type in Spark SQL`.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    @hvanhovell please check again?


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    Test PASSed.
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    yea we should improve the type check of `CollectSet`


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[GitHub] spark pull request #13847: [SPARK-16135][SQL] Implement hashCode and euqals ...

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

    https://github.com/apache/spark/pull/13847#discussion_r68100206
  
    --- Diff: sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeArrayData.java ---
    @@ -298,6 +298,10 @@ public UnsafeMapData getMap(int ordinal) {
         return map;
       }
     
    +  // This `hashCode` computation could consume much processor time for large data.
    +  // If the computation becomes a bottleneck, we can use a light-weight logic; the first fixed bytes
    +  // are used to compute `hashCode` (See `Vector.hashCode`).
    +  // The same issue exists in `UnsafeMapData.hashCode`.
    --- End diff --
    
    The same issue also exists for UnsafeRow...


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61041 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61041/consoleFull)** for PR 13847 at commit [`30d28bc`](https://github.com/apache/spark/commit/30d28bcd45376dc082178e30005728249edd9b4a).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #3126 has finished](https://amplab.cs.berkeley.edu/jenkins/job/NewSparkPullRequestBuilder/3126/consoleFull)** for PR 13847 at commit [`b6bac43`](https://github.com/apache/spark/commit/b6bac43eb2857def9b1e98e47cd30539f0e59945).
     * This patch passes all tests.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    Merged build finished. Test FAILed.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    It seems `UnsafeArrayData` already has its own `equals` and hashCode`.
    Currently, spark doesn't compare unsafe MapData though, I think this might cause implicit bugs.



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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    I'm now checking failed tests...


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    The performance of `hashCode()` should be pretty good in this case, and this implementation is inline with the ones used in all other `Unsafe*` objects (MurMurHash). I'd rather be consistent. If this turns out to be a problem, we could always use the first n bytes (similar to the `Vector.hashCode`) for hashCode(), if it turns out to be a problem.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    Test PASSed.
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61053 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61053/consoleFull)** for PR 13847 at commit [`b6bac43`](https://github.com/apache/spark/commit/b6bac43eb2857def9b1e98e47cd30539f0e59945).
     * This patch **fails to build**.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61178 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61178/consoleFull)** for PR 13847 at commit [`d95824b`](https://github.com/apache/spark/commit/d95824b9e56fe8e1e364dfe4573113a248d52ece).
     * This patch passes all tests.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark pull request #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ...

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

    https://github.com/apache/spark/pull/13847#discussion_r68430262
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/MapData.scala ---
    @@ -39,4 +39,7 @@ abstract class MapData extends Serializable {
           i += 1
         }
       }
    +
    +  // `MapData` should not implement `equals` and `hashCode` because the type cannot be used as join
    --- End diff --
    
    Shall we put this in the class header?


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    aha, yes. It'd better to take the same approach in `UnsafeRow`?


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    Does the current implementation of `Vector.hashCode` have enough performance? If so, it's okay to follow the impl. to me.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    LGTM - @cloud-fan?


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61237 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61237/consoleFull)** for PR 13847 at commit [`902fe5f`](https://github.com/apache/spark/commit/902fe5fdf3ef9379252b7e8f7eaeaeaa6dd8759d).


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61168 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61168/consoleFull)** for PR 13847 at commit [`431a3fe`](https://github.com/apache/spark/commit/431a3fed713c401e0c75931ad8d90b110882d2c4).
     * This patch passes all tests.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

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

    https://github.com/apache/spark/pull/13847
  
    Test FAILed.
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Implement hashCode and euqals in Unsa...

Posted by AmplabJenkins <gi...@git.apache.org>.
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    https://github.com/apache/spark/pull/13847
  
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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    **[Test build #61173 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/61173/consoleFull)** for PR 13847 at commit [`78b57c6`](https://github.com/apache/spark/commit/78b57c608609688ec5a25f2df619ec3706dcdfa2).
     * This patch **fails Spark unit tests**.
     * This patch merges cleanly.
     * This patch adds no public classes.


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    thanks, merging to master/2.0!


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[GitHub] spark issue #13847: [SPARK-16135][SQL] Remove hashCode and euqals in ArrayBa...

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

    https://github.com/apache/spark/pull/13847
  
    LGTM,  retest this as the last test pass is 2 days ago.


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