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[SPARK-24871][SQL] Refactor Concat and MapConcat to avoid creating concatenator object for each row. #21824

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ueshin wants to merge 3 commits into from
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[SPARK-24871][SQL] Refactor Concat and MapConcat to avoid creating concatenator object for each row. #21824

ueshin wants to merge 3 commits into from

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@ueshin ueshin commented Jul 20, 2018

What changes were proposed in this pull request?

Refactor Concat and MapConcat to:

  • avoid creating concatenator object for each row.
  • make Concat handle containsNull properly.
  • make Concat shortcut if null child is found.

How was this patch tested?

Added some tests and existing tests.

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ueshin commented Jul 20, 2018

cc @mn-mikke @bersprockets

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ueshin commented Jul 20, 2018

also cc @cloud-fan @gatorsmile

cloud-fan
cloud-fan reviewed Jul 20, 2018
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...catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala Outdated
| ${CodeGenerator.getValue(s"args[y]", elementType, "z")}
|);""".stripMargin

val setterCode = if (checkForNull) {
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nit: nullSafeSetterCode

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cloud-fan commented Jul 20, 2018

LGTM

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SparkQA commented Jul 20, 2018

Test build #93316 has finished for PR 21824 at commit 644a30d.

  • This patch fails due to an unknown error code, -9.
  • This patch merges cleanly.
  • This patch adds no public classes.

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SparkQA commented Jul 20, 2018

Test build #93326 has finished for PR 21824 at commit c254523.

  • This patch fails Spark unit tests.
  • This patch merges cleanly.
  • This patch adds no public classes.

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ueshin commented Jul 20, 2018

Jenkins, retest this please.

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SparkQA commented Jul 20, 2018

Test build #93330 has finished for PR 21824 at commit c254523.

  • This patch passes all tests.
  • This patch merges cleanly.
  • This patch adds no public classes.

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cloud-fan commented Jul 20, 2018

thanks, merging to master!

@asfgit asfgit closed this in 7b6d36b Jul 20, 2018
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@ueshin @cloud-fan @SparkQA