raminqaf commented on code in PR #29636:
URL: https://github.com/apache/flink/pull/29636#discussion_r4394378568
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flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/codegen/calls/ScalarOperatorGens.scala:
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@@ -1747,11 +1747,18 @@ object ScalarOperatorGens {
tmpValue
)
} else if (isCharacterString(keyType)) {
- val fieldName = key.literalValue.get.toString
+ val fieldAccess = key.literalValue match {
+ case Some(fieldName) if fieldName != null =>
+ val getterTerm =
+ ctx.addReusableObject(new VariantFieldGetter(fieldName.toString),
"variantFieldGetter")
+ s"$getterTerm.getField($variantTerm)"
+ // A key that is not a literal, or a NULL literal, whose access code
never runs.
+ case _ => s"$variantTerm.getField($keyTerm.toString())"
Review Comment:
`$keyTerm` is of type `BinaryStringData` so dropping the `toString()` will
cause Janino to fail.
We can `toBytes` and add a helper to `BinaryVariant`, but we need the
guaranty that the bytes are valid UTF-8.
```suggestion
case _ => s"$variantTerm.getField($keyTerm.toBytes())"
```
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