Github user gczsjdy commented on a diff in the pull request:
https://github.com/apache/spark/pull/16476#discussion_r95060307
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ConditionalExpressionSuite.scala
---
@@ -137,4 +139,48 @@ class ConditionalExpressionSuite extends SparkFunSuite
with ExpressionEvalHelper
checkEvaluation(CaseKeyWhen(c6, Seq(c5, c2, c4, c3)), null, row)
checkEvaluation(CaseKeyWhen(literalNull, Seq(c2, c5, c1, c6)), null,
row)
}
+
+ test("case field") {
+ val str1 = Literal("è±è±ä¸ç")
+ val str2 = Literal("a")
+ val str3 = Literal("b")
+ val str4 = Literal("")
+ val str5 = Literal("999")
+ val strNull = Literal.create(null, StringType)
+
+ val bool1 = Literal(true)
+ val bool2 = Literal(false)
+
+ val int1 = Literal(1)
+ val int2 = Literal(2)
+ val int3 = Literal(3)
+ val int4 = Literal(999)
+ val intNull = Literal.create(null, IntegerType)
+
+ val double1 = Literal(1.221)
+ val double2 = Literal(1.222)
+ val double3 = Literal(1.224)
+
+ val timeStamp1 = Literal(new Timestamp(2016, 12, 27, 14, 22, 1, 1))
+ val timeStamp2 = Literal(new Timestamp(1988, 6, 3, 1, 1, 1, 1))
+ val timeStamp3 = Literal(new Timestamp(1990, 6, 5, 1, 1, 1, 1))
+
+ val date1 = Literal(new Date(1949, 1, 1))
+ val date2 = Literal(new Date(1979, 1, 1))
+ val date3 = Literal(new Date(1989, 1, 1))
+
+ checkEvaluation(Field(Seq(str1, str2, str3, str1)), 3)
+ checkEvaluation(Field(Seq(str2, str2, str2, str1)), 1)
+ checkEvaluation(Field(Seq(str4, str4, str4, str1)), 1)
+ checkEvaluation(Field(Seq(bool1, bool2, bool1, bool1)), 2)
+ checkEvaluation(Field(Seq(int1, int2, int3, int1)), 3)
+ checkEvaluation(Field(Seq(double2, double3, double1, double2)), 3)
+ checkEvaluation(Field(Seq(timeStamp1, timeStamp2, timeStamp3,
timeStamp1)), 3)
+ checkEvaluation(Field(Seq(date1, date1, date2, date3)), 1)
+ checkEvaluation(Field(Seq(int4, double3, str5, bool1, date1,
timeStamp2, int4)), 6)
+ checkEvaluation(Field(Seq(str5, str1, str2, str4)), 0)
+ checkEvaluation(Field(Seq(int4, double3, str5, bool1, date1,
timeStamp2, int3)), 0)
+ checkEvaluation(Field(Seq(int1, strNull, intNull, bool1, date1,
timeStamp2, int3)), 0)
+ checkEvaluation(Field(Seq(strNull, int1, str1, str2, str3)), 0)
--- End diff --
@gatorsmile Sure.
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