beliefer commented on a change in pull request #25172: [SPARK-28412][SQL] ANSI
SQL: OVERLAY function support byte array
URL: https://github.com/apache/spark/pull/25172#discussion_r306621651
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File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/StringExpressionsSuite.scala
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@@ -452,6 +452,45 @@ class StringExpressionsSuite extends SparkFunSuite with
ExpressionEvalHelper {
// scalastyle:on
}
+ test("overlay for byte array") {
+ val input = Literal(Array[Byte](1, 2, 3, 4, 5, 6, 7, 8, 9))
+ checkEvaluation(new Overlay(input, Literal(Array[Byte](-1)),
+ Literal.create(6, IntegerType)), Array[Byte](1, 2, 3, 4, 5, -1, 7, 8, 9))
Review comment:
I have added tests for negative and zero. I think this behavior is very
different from ANSI SQL and other databases.
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