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[SPARK-24605][SQL] size(null) returns null instead of -1 #21598

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[SPARK-24605][SQL] size(null) returns null instead of -1 #21598

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2338b78
New implementation of size returns null for null input
MaxGekk Jun 20, 2018
e18568f
Test for legacy and new implementation of size()
MaxGekk Jun 20, 2018
64dc3b2
Call single param constructor
MaxGekk Jun 20, 2018
b6539a5
Fix expression tests
MaxGekk Jun 20, 2018
80114b3
isPublic flag is reverted back for the global config
MaxGekk Jun 20, 2018
5d58d82
Replacing config name by var name in SQLConf
MaxGekk Jun 20, 2018
431fca8
Folding Array and Map cases to one, throwing exception for unsupporte…
MaxGekk Jun 20, 2018
64a1b7d
Changing config description
MaxGekk Jun 20, 2018
10e7a2d
Updated description and added a couple examples
MaxGekk Jun 26, 2018
cf9364d
Unifying code for legacy and new path
MaxGekk Jun 26, 2018
bb21e13
Merge remote-tracking branch 'origin/master' into size-of-null2
MaxGekk Jun 26, 2018
ae2c7f1
Fix merge conflicts
MaxGekk Jun 26, 2018
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Unifying code for legacy and new path
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@MaxGekk
MaxGekk committed Jun 26, 2018
commit cf9364d2e5aa1e6710bcc4d37c6e35d16b5343e7
6 changes: 1 addition & 5 deletions ...alyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala
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Expand Up @@ -119,11 +119,7 @@ case class Size(
${CodeGenerator.javaType(dataType)} ${ev.value} = ${childGen.isNull} ? -1 :
(${childGen.value}).numElements();""", isNull = FalseLiteral)
} else {
child.dataType match {
case _: ArrayType | _: MapType => defineCodeGen(ctx, ev, c => s"($c).numElements()")
case other => throw new UnsupportedOperationException(
s"The size function doesn't support the operand type ${other.getClass.getCanonicalName}")
}
defineCodeGen(ctx, ev, c => s"($c).numElements()")
}
}
}
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