Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/22395#discussion_r216854603
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/dsl/package.scala ---
@@ -72,6 +72,7 @@ package object dsl {
def - (other: Expression): Expression = Subtract(expr, other)
def * (other: Expression): Expression = Multiply(expr, other)
def / (other: Expression): Expression = Divide(expr, other)
+ def div (other: Expression): Expression = IntegralDivide(expr, other)
--- End diff --
The failure looks like relevant.
```scala
org.scalatest.exceptions.TestFailedException:
Expected "struct<[CAST((CAST(5 AS DOUBLE) / CAST(2 AS DOUBLE)) AS
BIGINT):big]int>",
but got "struct<[(5 div 2):]int>" Schema did not match for query #19 select
5 div 2
```
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