snuyanzin commented on code in PR #29368:
URL: https://github.com/apache/flink/pull/29368#discussion_r4167832678
##########
flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/operations/utils/CorrelatedFunctionTableFactory.java:
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@@ -91,7 +100,11 @@ private CorrelatedFunctionQueryOperation
unwrapFromAlias(CallExpression call) {
+ alias)))
.collect(toList());
- if (!isFunctionOfKind(children.get(0), FunctionKind.TABLE)) {
+ // SNAPSHOT is PROCESS_TABLE rather than TABLE but is valid in a
LATERAL join.
+ Expression firstChild = children.get(0);
+ if (!isFunctionOfKind(children.get(0), FunctionKind.TABLE)
Review Comment:
```suggestion
if (!isFunctionOfKind(firstChild, FunctionKind.TABLE)
```
?
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