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[SPARK-14578] [SQL] Fix codegen for CreateExternalRow with nested wide schema - #12338
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davies wants to merge 2 commits into
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[SPARK-14578] [SQL] Fix codegen for CreateExternalRow with nested wide schema#12338davies wants to merge 2 commits into
davies wants to merge 2 commits into
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davies
commented
Apr 12, 2016
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SparkQA
commented
Apr 12, 2016
Test build #55651 has finished for PR 12338 at commit
|
cloud-fan
commented
Apr 13, 2016
Contributor
LGTM |
cloud-fan
commented
Apr 13, 2016
Contributor
One more question, actually there are some more places that we use local variables as the input for expressions, e.g. |
davies
commented
Apr 13, 2016
ContributorAuthor
This is used for non-whole-stage codegen, also MapObjects does not support interpret mode, or it's better to fallback. Class member may prevent JIT compiler to do more optimization, so we should not aggresively put all of them as class members. Merging this into master. |
asfgit pushed a commit
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Apr 19, 2016
… type ## What changes were proposed in this pull request? After #12067, we now use expressions to do the aggregation in `TypedAggregateExpression`. To implement buffer merge, we produce a new buffer deserializer expression by replacing `AttributeReference` with right-side buffer attribute, like other `DeclarativeAggregate`s do, and finally combine the left and right buffer deserializer with `Invoke`. However, after #12338, we will add loop variable to class members when codegen `MapObjects`. If the `Aggregator` buffer type is `Seq`, which is implemented by `MapObjects` expression, we will add the same loop variable to class members twice(by left and right buffer deserializer), which cause the `ClassFormatError`. This PR fixes this issue by calling `distinct` before declare the class menbers. ## How was this patch tested? new regression test in `DatasetAggregatorSuite` Author: Wenchen Fan <wenchen@databricks.com> Closes#12468 from cloud-fan/bug.
kapilsingh5050 pushed a commit
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Dec 12, 2016
…with nested wide schema The wide schema, the expression of fields will be splitted into multiple functions, but the variable for loopVar can't be accessed in splitted functions, this PR change them as class member. Added regression test. Author: Davies Liu <davies@databricks.com> Closesapache#12338 from davies/nested_row. Conflicts: sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/json/JsonSuite.scala
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What changes were proposed in this pull request?
The wide schema, the expression of fields will be splitted into multiple functions, but the variable for loopVar can't be accessed in splitted functions, this PR change them as class member.
How was this patch tested?
Added regression test.