twalthr commented on a change in pull request #10960: [FLINK-15487][table]
Update code generation for new type inference
URL: https://github.com/apache/flink/pull/10960#discussion_r373519914
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File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/codegen/CodeGenUtils.scala
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@@ -694,38 +706,67 @@ object CodeGenUtils {
}
}
+ /**
+ * Generates code for converting the given external source data type to the
internal data format.
+ *
+ * Use this function for converting at the edges of the API.
+ */
def genToInternalIfNeeded(
ctx: CodeGeneratorContext,
- t: DataType,
- term: String): String = {
- if (isInternalClass(t)) {
- s"(${boxedTypeTermForType(fromDataTypeToLogicalType(t))}) $term"
+ sourceType: DataType,
+ externalTerm: String)
+ : GeneratedExpression = {
+ // convert external source type to internal format
+ val internalResultTerm = if (isInternalClass(sourceType)) {
+ s"(${boxedTypeTermForType(fromDataTypeToLogicalType(sourceType))})
$externalTerm"
Review comment:
The cast is actually not necessary anymore because of the cast in
`BridgingSqlFunctionCallGen`. I remove it for now.
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