JNSimba commented on code in PR #284:
URL:
https://github.com/apache/doris-spark-connector/pull/284#discussion_r2006906063
##########
spark-doris-connector/spark-doris-connector-spark-3.5/src/main/scala/org/apache/doris/spark/read/expression/V2ExpressionBuilder.scala:
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@@ -55,6 +55,21 @@ class V2ExpressionBuilder(inValueLengthLimit: Int) {
case "<=" => s"`${build(e.children()(0))}` <=
${build(e.children()(1))}"
case ">" => s"`${build(e.children()(0))}` >
${build(e.children()(1))}"
case ">=" => s"`${build(e.children()(0))}` >=
${build(e.children()(1))}"
+ case "CASE_WHEN" =>
+ val fragment = new StringBuilder("CASE ")
+ val expressions = e.children()
+
+ for(i<- 0 until expressions.size - 1 by 2){
+ fragment.append(s" WHEN ${build(expressions(i))} THEN
${build(expressions(i+1))} ")
+ }
+
+ if (expressions.length % 2 != 0) {
+ val last = expressions(expressions.length - 1)
+ fragment.append(s" ELSE ${build(last)} ")
+ }
+ fragment.append(" END")
+
+ fragment.mkString
Review Comment:
Can you add a test for this?
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