twalthr commented on code in PR #26076:
URL: https://github.com/apache/flink/pull/26076#discussion_r1928537953
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flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/inference/SystemTypeInference.java:
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@@ -57,10 +56,15 @@
@Internal
public class SystemTypeInference {
- private static final List<StaticArgument>
PROCESS_TABLE_FUNCTION_SYSTEM_ARGS =
+ public static final List<StaticArgument>
PROCESS_TABLE_FUNCTION_SYSTEM_ARGS =
List.of(StaticArgument.scalar("uid", DataTypes.STRING(), true));
- /** Format of unique identifiers for {@link ProcessTableFunction}. */
+ /**
+ * Format of unique identifiers for {@link ProcessTableFunction}.
+ *
+ * <p>Leading digits are not allowed. This also prevents that a custom PTF
uid can infer with
Review Comment:
```suggestion
* <p>Leading digits are not allowed. This also prevents that a custom
PTF uid can interfere with
```
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