Skip to content

[SPARK-8654][SQL] Fix Analysis exception when using NULL IN (...) #8983

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
dilipbiswal wants to merge 6 commits into from
Closed

[SPARK-8654][SQL] Fix Analysis exception when using NULL IN (...) #8983

Show file tree
Hide file tree
Changes from 2 commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
38f973b
[SPARK-8654] Analysis exception when using NULL IN (...) : invalid cast
dilipbiswal Oct 2, 2015
acbd6a6
Fixing testcase based on review comments
dilipbiswal Oct 5, 2015
d33e786
Raise an error if the inlist contains incompatible types
dilipbiswal Oct 8, 2015
ac9265d
Fix scala style check failures
dilipbiswal Oct 8, 2015
cf976a6
Apply code review comments
dilipbiswal Oct 8, 2015
6bfdf2f
Fix the comment
dilipbiswal Oct 8, 2015
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/HiveTypeCoercion.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -305,12 +305,17 @@ object HiveTypeCoercion {

/**
* Convert all expressions in in() list to the left operator type
* except when the left operator type is NullType. In case when left hand
* operator type is NullType create a Literal(Null).
*/
object InConversion extends Rule[LogicalPlan] {
def apply(plan: LogicalPlan): LogicalPlan = plan resolveExpressions {
// Skip nodes who's children have not been resolved yet.
case e if !e.childrenResolved => e

case i @ In(a, b) if (a.dataType == NullType) =>
Literal.create(null, BooleanType)
Copy link
Contributor

@cloud-fan cloud-fan Oct 5, 2015

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

instead of just casting null to boolean, can we come up with a better idea according to the data types of b?

Copy link
Contributor

@cloud-fan cloud-fan Oct 5, 2015

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Ah sorry for my mistake. I thought you are casting the a to boolean type, but actually you just turn the result to boolean null.

Can you reference to a hive doc that says something like "if the value is null, the In operation will always return null"? I think we should follow hive semantic here.


case i @ In(a, b) if b.exists(_.dataType != a.dataType) =>
i.makeCopy(Array(a, b.map(Cast(_, a.dataType))))
}
Expand Down
7 changes: 7 additions & 0 deletions sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisSuite.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -135,4 +135,11 @@ class AnalysisSuite extends AnalysisTest {
plan = testRelation.select(CreateStructUnsafe(Seq(a, (a + 1).as("a+1"))).as("col"))
checkAnalysis(plan, plan)
}

test("SPARK-8654: invalid CAST in NULL IN(...) expression") {
val plan = Project(Alias(In(Literal(null), Seq(Literal(1), Literal(2))), "a")() :: Nil,
LocalRelation()
)
assertAnalysisSuccess(plan)
}
}