bowenliang123 commented on code in PR #6786:
URL: https://github.com/apache/kyuubi/pull/6786#discussion_r1823819701
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kyuubi-common/src/main/scala/org/apache/kyuubi/engine/result/TColumnGenerator.scala:
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@@ -33,16 +33,18 @@ trait TColumnGenerator[RowT] extends
TRowSetColumnGetter[RowT] {
val rowSize = rows.length
val ret = new JArrayList[T](rowSize)
val nulls = new JBitSet()
+ val isConvertFuncDefined = Option(convertFunc).isDefined
var idx = 0
rows.foreach { row =>
val isNull = isColumnNullAt(row, ordinal)
if (isNull) {
nulls.set(idx, true)
ret.add(defaultVal)
} else {
- val value = Option(convertFunc) match {
- case Some(f) => f(row, ordinal)
- case _ => getColumnAs[T](row, ordinal)
+ val value = if (isConvertFuncDefined) {
+ convertFunc(row, ordinal)
+ } else {
+ getColumnAs[T](row, ordinal)
Review Comment:
I would still prefer to use an extracted boolean value for this. I assume
that accessing a boolean costs less step and byte code steps for comparing
`convertFunc` to `null`, especially since it's repeatedly used and checked once
for each row.
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