mgaido91 commented on a change in pull request #25041: [SPARK-28133][SQL] Add
acosh/asinh/atanh functions to SQL
URL: https://github.com/apache/spark/pull/25041#discussion_r303231040
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/mathExpressions.scala
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@@ -557,6 +580,31 @@ case class Sin(child: Expression) extends
UnaryMathExpression(math.sin, "SIN")
""")
case class Sinh(child: Expression) extends UnaryMathExpression(math.sinh,
"SINH")
+@ExpressionDescription(
+ usage = """
+ _FUNC_(expr) - Returns inverse hyperbolic sine of `expr`.
+ """,
+ arguments = """
+ Arguments:
+ * expr - hyperbolic angle
+ """,
+ examples = """
+ Examples:
+ > SELECT _FUNC_(0);
+ 0.0
+ """,
+ since = "3.0.0")
+case class Asinh(child: Expression)
+ extends UnaryMathExpression((x: Double) => x match {
+ case Double.NegativeInfinity => Double.NegativeInfinity
+ case _ => math.log(x + math.sqrt(x * x + 1.0)) }, "ASINH") {
+ override def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode = {
+ defineCodeGen(ctx, ev, c =>
Review comment:
The PR was this one: https://github.com/apache/spark/pull/24636. The bug
opened there for janino cannot happen here, but I remember I also had issues in
that PR in a case when there was a cast added to the terms.
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