[SPARK-20335] [SQL] Children expressions of Hive UDF impacts the determinism of Hive UDF #17635
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gatorsmile
commented
Apr 14, 2017
| Row(null, null, 110.0, null, null, 10.0) :: Nil) | ||
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| test("non-deterministic children expressions of UDAF") { |
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This is just to improve the test case coverage.
gatorsmile
commented
Apr 14, 2017
| )) | ||
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| test("non-deterministic children expressions of UDAF") { |
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This is just to improve the test case coverage.
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Test build #75793 has started for PR 17635 at commit |
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Test build #75791 has finished for PR 17635 at commit
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viirya
reviewed
Apr 14, 2017
| test("non-deterministic children expressions of UDAF") { | ||
| withTempView("view1") { | ||
| spark.range(1).selectExpr("id as x", "id as y").createTempView("view1") | ||
| withUserDefinedFunction("testUDAFPercentile" -> true, "testMock" -> true) { |
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LGTM except a minor comment on the test. |
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Test build #75824 has finished for PR 17635 at commit
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cc @cloud-fan |
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+1 |
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LGTM, merging to master! @gatorsmile shall we backport this PR? |
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Maybe, yes. Will do it later. Thank you! |
asfgit
pushed a commit
that referenced
this pull request
Apr 17, 2017
…acts the determinism of Hive UDF ### What changes were proposed in this pull request? This PR is to backport #17635 to Spark 2.1 --- ```JAVA /** * Certain optimizations should not be applied if UDF is not deterministic. * Deterministic UDF returns same result each time it is invoked with a * particular input. This determinism just needs to hold within the context of * a query. * * return true if the UDF is deterministic */ boolean deterministic() default true; ``` Based on the definition of [UDFType](https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/udf/UDFType.java#L42-L50), when Hive UDF's children are non-deterministic, Hive UDF is also non-deterministic. ### How was this patch tested? Added test cases. Author: Xiao Li <[email protected]> Closes #17652 from gatorsmile/backport-17635.
peter-toth
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to peter-toth/spark
that referenced
this pull request
Oct 6, 2018
…minism of Hive UDF ### What changes were proposed in this pull request? ```JAVA /** * Certain optimizations should not be applied if UDF is not deterministic. * Deterministic UDF returns same result each time it is invoked with a * particular input. This determinism just needs to hold within the context of * a query. * * return true if the UDF is deterministic */ boolean deterministic() default true; ``` Based on the definition of [UDFType](https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/udf/UDFType.java#L42-L50), when Hive UDF's children are non-deterministic, Hive UDF is also non-deterministic. ### How was this patch tested? Added test cases. Author: Xiao Li <[email protected]> Closes apache#17635 from gatorsmile/udfDeterministic.
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What changes were proposed in this pull request?
Based on the definition of UDFType, when Hive UDF's children are non-deterministic, Hive UDF is also non-deterministic.
How was this patch tested?
Added test cases.