[GitHub] [spark] beliefer commented on a change in pull request #27508: [SPARK-30763][SQL] Fix java.lang.IndexOutOfBoundsException No group 1 for regexp_extract

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beliefer commented on a change in pull request #27508: [SPARK-30763][SQL] Fix java.lang.IndexOutOfBoundsException No group 1 for regexp_extract
URL: https://github.com/apache/spark/pull/27508#discussion_r377061365
 
 

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 File path: sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/RegexpExpressionsSuite.scala
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 @@ -293,6 +293,27 @@ class RegexpExpressionsSuite extends SparkFunSuite with ExpressionEvalHelper {
 
     val nonNullExpr = RegExpExtract(Literal("100-200"), Literal("(\\d+)-(\\d+)"), Literal(1))
     checkEvaluation(nonNullExpr, "100", row1)
+
+    // invalid group index
+    val row8 = create_row("100-200", "(\\d+)-(\\d+)", 3)
+    val row9 = create_row("100-200", "(\\d+).*", 2)
+    val row10 = create_row("100-200", "\\d+", 1)
+
+    val invalidGroupIndex1 = intercept[AnalysisException] {
+      evaluateWithoutCodegen(expr, row8)
 
 Review comment:
   Thanks. I know it now.

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