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[SPARK-56625][SPARK][SQL][TESTS] Strengthen array_position collation coverage #55542

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[SPARK-56625][SPARK][SQL][TESTS] Strengthen array_position collation coverage #55542

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14 changes: 14 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/collation/CollationSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -2724,4 +2724,18 @@ class CollationSuite extends DatasourceV2SQLBase with AdaptiveSparkPlanHelper {
}
}

test("array_position respects schema-level non-binary collation") {
val q =
"""SELECT array_position(a, 'HELLO') AS pos
|FROM (
| SELECT CAST(array(
| CASE id WHEN 0 THEN 'hello'
| WHEN 1 THEN 'HELLO'
| ELSE 'world'
| END
| ) AS ARRAY<STRING COLLATE UTF8_LCASE>) AS a
| FROM range(3)
|)""".stripMargin
checkAnswer(sql(q), Seq(Row(1L), Row(1L), Row(0L)))
}
}