raminqaf commented on code in PR #28025:
URL: https://github.com/apache/flink/pull/28025#discussion_r3201871357
##########
flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/inference/strategies/FromChangelogTypeStrategy.java:
##########
@@ -273,23 +276,26 @@ private static Optional<List<DataType>>
validateErrorHandling(
return Optional.empty();
}
- private static String resolveOpColumnName(final CallContext callContext) {
- return callContext
- .getArgumentValue(ARG_OP, ColumnList.class)
- .filter(cl -> !cl.getNames().isEmpty())
- .map(cl -> cl.getNames().get(0))
- .orElse(DEFAULT_OP_COLUMN_NAME);
- }
-
private static List<Field> buildOutputFields(
final TableSemantics tableSemantics, final String opColumnName) {
final List<Field> inputFields =
DataType.getFields(tableSemantics.dataType());
-
- // Exclude the op column (becomes RowKind), keep all other columns
- return inputFields.stream()
- .filter(f -> !f.getName().equals(opColumnName))
+ return Arrays.stream(
+ ChangelogTypeStrategyUtils.computeOutputIndices(
+ tableSemantics, opColumnName))
+ .mapToObj(inputFields::get)
.collect(Collectors.toList());
}
+ /**
+ * Returns the index of the column matching {@code opColumnName} within
the given input fields,
+ * or empty if no field matches.
+ */
+ private static OptionalInt resolveOpColumnIndex(
+ final List<Field> inputFields, final String opColumnName) {
+ return IntStream.range(0, inputFields.size())
+ .filter(i -> inputFields.get(i).getName().equals(opColumnName))
+ .findFirst();
+ }
+
Review Comment:
Nice catch. Applied
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