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[SPARK-16939][SQL] Fix build error by using Tuple1 explicitly in StringFunctionsSuite #14526

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[SPARK-16939][SQL] Fix build error by using Tuple1 explicitly in StringFunctionsSuite #14526

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2 changes: 1 addition & 1 deletion sql/core/src/test/scala/org/apache/spark/sql/StringFunctionsSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,7 @@ class StringFunctionsSuite extends QueryTest with SharedSQLContext {
}

test("non-matching optional group") {
val df = Seq("aaaac").toDF("s")
val df = Seq(Tuple1("aaaac")).toDF("s")
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OK, I guess that Scala 2.11 has an implicit conversion that Scala 2.10 does not that would make this conversion automatically, hence the PR builder succeeded. We could also just add a dummy column in the example, but I suppose this is the best way to ensure that the fix works in 1.6, and also makes the test a little more robust. LGTM, thanks.

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Thank you, @srowen .

checkAnswer(
df.select(regexp_extract($"s", "(a+)(b)?(c)", 2)),
Row("")
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