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[SPARK-56426][SQL] Fix LATERAL VIEW column alias with dot in name #55282

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[SPARK-56426][SQL] Fix LATERAL VIEW column alias with dot in name #55282

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6 changes: 5 additions & 1 deletion sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -3190,7 +3190,11 @@ class Analyzer(
throw QueryCompilationErrors.nestedGeneratorError(g.generator)
}
g.copy(generatorOutput =
GeneratorResolution.makeGeneratorOutput(g.generator, g.generatorOutput.map(_.name)))
GeneratorResolution.makeGeneratorOutput(
g.generator, g.generatorOutput.map {
case ua: UnresolvedAttribute => ua.nameParts.head
case a => a.name
}))
}
}
}
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11 changes: 11 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -3440,6 +3440,17 @@ class SQLQuerySuite extends QueryTest with SharedSparkSession with AdaptiveSpark
checkAnswer(df2, Row(1) :: Nil)
}

test("SPARK-56426: LATERAL VIEW column alias with dot in name should resolve correctly") {
checkAnswer(
sql(
"""
|SELECT id, `skill.inst`
|FROM VALUES (1, array('a', 'b')) AS (id, skills)
|LATERAL VIEW explode(skills) skills_table AS `skill.inst`
""".stripMargin),
Row(1, "a") :: Row(1, "b") :: Nil)
}

test("SPARK-30279 Support 32 or more grouping attributes for GROUPING_ID()") {
withTempView("t") {
sql("CREATE TEMPORARY VIEW t AS SELECT * FROM " +
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