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[AURON #2166] Wire existing native scalar functions in NativeConverters #2162

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[AURON #2166] Wire existing native scalar functions in NativeConverters #2162

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dd643d4
Wire 6 native scalar functions: ascii, bit_length, chr, translate, re…
ShreyeshArangath Apr 4, 2026
cc3f1f5
Remove non-ASCII character from bit_length test data
ShreyeshArangath Apr 4, 2026
acc7724
Use unicode escape for multi-byte character in bit_length test
ShreyeshArangath Apr 4, 2026
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58 changes: 58 additions & 0 deletions spark-extension-shims-spark/src/test/scala/org/apache/auron/AuronFunctionSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -685,4 +685,62 @@ class AuronFunctionSuite extends AuronQueryTest with BaseAuronSQLSuite {
}
}
}

test("ascii function") {
withTable("t1") {
sql("create table t1(c1 string) using parquet")
sql("insert into t1 values('A'), ('abc'), (''), (null)")
checkSparkAnswerAndOperator("select ascii(c1) from t1")
}
}

test("bit_length function") {
withTable("t1") {
sql("create table t1(c1 string) using parquet")
sql("insert into t1 values('hello'), (''), (null), ('caf\\u00e9')")
checkSparkAnswerAndOperator("select bit_length(c1) from t1")
}
}

test("chr function") {
withTable("t1") {
sql("create table t1(c1 bigint) using parquet")
sql("insert into t1 values(65), (97), (48), (null)")
checkSparkAnswerAndOperator("select chr(c1) from t1")
}
}

test("translate function") {
withTable("t1") {
sql("create table t1(c1 string) using parquet")
sql("insert into t1 values('AaBbCc'), ('hello'), (''), (null)")
checkSparkAnswerAndOperator("select translate(c1, 'ABC', 'xyz') from t1")
}
}

test("replace function") {
withTable("t1") {
sql("create table t1(c1 string) using parquet")
sql("insert into t1 values('hello world'), ('aaa'), (''), (null)")
checkSparkAnswerAndOperator("select replace(c1, 'world', 'spark') from t1")
checkSparkAnswerAndOperator("select replace(c1, 'a', '') from t1")
}
}

test("date_trunc function") {
withSQLConf(SQLConf.SESSION_LOCAL_TIMEZONE.key -> "UTC") {
withTable("t1") {
sql("create table t1(c1 timestamp) using parquet")
sql("""insert into t1 values
| (timestamp'2024-03-15 14:30:45'),
| (timestamp'2024-12-31 23:59:59'),
| (null)
|""".stripMargin)
checkSparkAnswerAndOperator("select date_trunc('year', c1) from t1")
checkSparkAnswerAndOperator("select date_trunc('month', c1) from t1")
checkSparkAnswerAndOperator("select date_trunc('day', c1) from t1")
checkSparkAnswerAndOperator("select date_trunc('hour', c1) from t1")
}
}
}
}
11 changes: 11 additions & 0 deletions spark-extension/src/main/scala/org/apache/spark/sql/auron/NativeConverters.scala
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Expand Up @@ -891,6 +891,17 @@ object NativeConverters extends Logging {
buildScalarFunction(pb.ScalarFunction.FindInSet, e.children, e.dataType)
case e: Abs if e.dataType.isInstanceOf[FloatType] || e.dataType.isInstanceOf[DoubleType] =>
buildScalarFunction(pb.ScalarFunction.Abs, e.children, e.dataType)
case e: Ascii => buildScalarFunction(pb.ScalarFunction.Ascii, e.children, e.dataType)
case e: BitLength =>
buildScalarFunction(pb.ScalarFunction.BitLength, e.children, e.dataType)
case e: Chr => buildScalarFunction(pb.ScalarFunction.Chr, e.children, e.dataType)
case e: StringTranslate =>
buildScalarFunction(pb.ScalarFunction.Translate, e.children, e.dataType)
case e: StringReplace =>
buildScalarFunction(pb.ScalarFunction.Replace, e.children, e.dataType)
case e: TruncTimestamp =>
buildScalarFunction(pb.ScalarFunction.DateTrunc, e.children, e.dataType)

case e: OctetLength =>
buildScalarFunction(pb.ScalarFunction.OctetLength, e.children, e.dataType)
case Length(arg) if arg.dataType == StringType =>
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