luoyuxia commented on code in PR #22904:
URL: https://github.com/apache/flink/pull/22904#discussion_r1250482173
##########
flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/extraction/TypeInferenceExtractor.java:
##########
@@ -143,6 +145,27 @@ public static TypeInference forAsyncTableFunction(
return extractTypeInference(mappingExtractor);
}
+ public static TypeInference forProcedure(
+ DataTypeFactory typeFactory, Class<? extends Procedure> procedure)
{
+ final ProcedureMappingExtractor mappingExtractor =
+ new ProcedureMappingExtractor(
+ typeFactory,
+ procedure,
+ ProcedureDefinition.PROCEDURE_CALL,
+
ProcedureMappingExtractor.createParameterSignatureExtraction(1),
+
ProcedureMappingExtractor.createReturnTypeResultExtraction(),
+
ProcedureMappingExtractor.createParameterAndReturnTypeVerification());
+ try {
+ return extractTypeInferenceOrError(mappingExtractor);
+ } catch (Throwable t) {
+ throw extractionError(
+ t,
+ "Could not extract a valid type inference for procedure
class '%s'. "
+ + "Please check for implementation mistakes and/or
provide a corresponding hint.",
+ mappingExtractor.getFunctionClass().getName());
+ }
+ }
Review Comment:
Good suggestion.
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