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[SPARK-34556][SQL][3.0] Checking duplicate static partition columns should respect case sensitive conf #31714

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[SPARK-34556][SQL][3.0] Checking duplicate static partition columns should respect case sensitive conf #31714

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6 changes: 5 additions & 1 deletion sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -500,7 +500,11 @@ class AstBuilder(conf: SQLConf) extends SqlBaseBaseVisitor[AnyRef] with Logging
// Before calling `toMap`, we check duplicated keys to avoid silently ignore partition values
// in partition spec like PARTITION(a='1', b='2', a='3'). The real semantical check for
// partition columns will be done in analyzer.
checkDuplicateKeys(parts, ctx)
if (conf.caseSensitiveAnalysis) {
checkDuplicateKeys(parts, ctx)
} else {
checkDuplicateKeys(parts.map(kv => kv._1.toLowerCase(Locale.ROOT) -> kv._2), ctx)
}
parts.toMap
}

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11 changes: 11 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/execution/command/DDLParserSuite.scala
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Expand Up @@ -353,6 +353,17 @@ class DDLParserSuite extends AnalysisTest with SharedSparkSession {
assert(e.contains("Found duplicate keys 'key1'"))
}

test("SPARK-34556: duplicate keys in partition spec") {
val e = intercept[ParseException] {
parser.parsePlan("INSERT OVERWRITE t PARTITION (c='2', C='3') VALUES (1)")
}.getMessage
assert(e.contains("Found duplicate keys 'c'"))
val conf = new SQLConf()
conf.setConf(SQLConf.CASE_SENSITIVE, true)
val caseSensitiveParser = new SparkSqlParser(conf)
caseSensitiveParser.parsePlan("INSERT OVERWRITE t PARTITION (c='2', C='3') VALUES (1)")
}

test("duplicate columns in partition specs") {
val e = intercept[ParseException] {
parser.parsePlan(
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