cloud-fan commented on a change in pull request #34729:
URL: https://github.com/apache/spark/pull/34729#discussion_r783114281
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File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/MathExpressionsSuite.scala
##########
@@ -705,6 +818,42 @@ class MathExpressionsSuite extends SparkFunSuite with
ExpressionEvalHelper {
checkEvaluation(BRound(-3.5, 0), -4.0)
checkEvaluation(BRound(-0.35, 1), -0.4)
checkEvaluation(BRound(-35, -1), -40)
+ checkEvaluation(checkDataTypeAndCast(
+ FloorExpressionBuilder.build(Seq(Literal(2.5), Literal(0)))), 2L)
+ checkEvaluation(checkDataTypeAndCast(
+ FloorExpressionBuilder.build(Seq(Literal(3.5), Literal(0)))), 3L)
+ checkEvaluation(checkDataTypeAndCast(
+ FloorExpressionBuilder.build(Seq(Literal(-2.5), Literal(0)))), -3L)
+ checkEvaluation(checkDataTypeAndCast(
+ FloorExpressionBuilder.build(Seq(Literal(-3.5), Literal(0)))), -4L)
+ checkEvaluation(checkDataTypeAndCast(
+ FloorExpressionBuilder.build(Seq(Literal(-0.35), Literal(1)))), -0.4)
+ checkEvaluation(checkDataTypeAndCast(
+ FloorExpressionBuilder.build(Seq(Literal(-35), Literal(-1)))), -40L)
+ checkEvaluation(checkDataTypeAndCast(
+ CeilExpressionBuilder.build(Seq(Literal(2.5), Literal(0)))), 3L)
+ checkEvaluation(checkDataTypeAndCast(
+ CeilExpressionBuilder.build(Seq(Literal(3.5), Literal(0)))), 4L)
+ checkEvaluation(checkDataTypeAndCast(
+ CeilExpressionBuilder.build(Seq(Literal(-2.5), Literal(0)))), -2L)
+ checkEvaluation(checkDataTypeAndCast(
+ CeilExpressionBuilder.build(Seq(Literal(-3.5), Literal(0)))), -3L)
+ checkEvaluation(checkDataTypeAndCast(
+ CeilExpressionBuilder.build(Seq(Literal(-0.35), Literal(1)))), -0.3)
+ checkEvaluation(checkDataTypeAndCast(
+ CeilExpressionBuilder.build(Seq(Literal(-35), Literal(-1)))), -30L)
+ checkEvaluation(checkDataTypeAndCast(
+ FloorExpressionBuilder.build(Seq(Literal(-0.1), Literal(0)))), -1L)
+ checkEvaluation(checkDataTypeAndCast(
+ FloorExpressionBuilder.build(Seq(Literal(5), Literal(0)))), 5L)
+ checkEvaluation(checkDataTypeAndCast(
+ FloorExpressionBuilder.build(Seq(Literal(3.1411), Literal(-3)))), 0L)
+ checkEvaluation(checkDataTypeAndCast(
+ CeilExpressionBuilder.build(Seq(Literal(-0.1), Literal(0)))), 0L)
+ checkEvaluation(checkDataTypeAndCast(
+ CeilExpressionBuilder.build(Seq(Literal(5), Literal(0)))), 5L)
+ checkEvaluation(checkDataTypeAndCast(
+ CeilExpressionBuilder.build(Seq(Literal(3.1411), Literal(-3)))), 1000L)
Review comment:
I'm a bit concerned about this case. It means the result can be
arbitrarily big, if the `scale` is a very large negative number.
Since we return long for negative scale, I think the scale can't be smaller
than `-18`. However, this can be weird if the input is decimal, e.g. there is a
column `col` of type `decimal(38, 0)`, it's weird if we fail `ceil(col, -30)`.
It seems to be that, `RoundCeil` should only accept decimal inputs if the
scale is not 0. Then return type should consider both the input decimal type
and the scale value.
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