Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/7398#discussion_r34650234
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/ExpressionTypeCheckingSuite.scala
---
@@ -53,9 +53,10 @@ class ExpressionTypeCheckingSuite extends SparkFunSuite {
}
test("check types for unary arithmetic") {
- assertError(UnaryMinus('stringField), "operator - accepts numeric
type")
- assertError(Abs('stringField), "function abs accepts numeric type")
- assertError(BitwiseNot('stringField), "operator ~ accepts integral
type")
+ assertError(UnaryMinus('stringField), "argument 1 is expected to be of
type numeric")
--- End diff --
can you also update UnaryMinus and UnaryPositive to support Interval type?
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