Github user kiszk commented on a diff in the pull request:
https://github.com/apache/spark/pull/18966#discussion_r143798289
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala
---
@@ -769,16 +769,21 @@ class CodegenContext {
foldFunctions: Seq[String] => String = _.mkString("", ";\n", ";")):
String = {
val blocks = new ArrayBuffer[String]()
val blockBuilder = new StringBuilder()
+ val maxLines = SQLConf.get.maxCodegenLinesPerFunction
--- End diff --
@gatorsmile I understand your concern about the possibility of new
performance regression. I will use the original threshold (max characters) as
hard-coded value.
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