Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/22870#discussion_r228776577
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/windowExpressions.scala
---
@@ -206,7 +206,7 @@ case class SpecifiedWindowFrame(
// Check combination (of expressions).
(lower, upper) match {
case (l: Expression, u: Expression) if !isValidFrameBoundary(l, u) =>
- TypeCheckFailure(s"Window frame upper bound '$upper' does not
followes the lower bound " +
+ TypeCheckFailure(s"Window frame upper bound '$upper' does not
follow the lower bound " +
--- End diff --
We need to rerun org.apache.spark.sql.SQLQueryTestSuite
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