cloud-fan commented on code in PR #49518:
URL: https://github.com/apache/spark/pull/49518#discussion_r1928073973
##########
common/utils/src/main/resources/error/error-conditions.json:
##########
@@ -3129,6 +3129,29 @@
],
"sqlState" : "42836"
},
+ "INVALID_RECURSIVE_REFERENCE" : {
+ "message" : [
+ "Invalid recursive reference found inside WITH RECURSIVE clause."
+ ],
+ "subClass" : {
+ "NUMBER" : {
+ "message" : [
+ "Multiple self-references to one recursive CTE are not allowed."
+ ]
+ },
+ "PLACE" : {
+ "message" : [
+ "Recursive references cannot be used on the right side of left
outer/semi/anti joins, on the left side of right outer joins, in full outer
joins and in aggregates."
Review Comment:
```suggestion
"Recursive references cannot be used on the right side of left
outer/semi/anti joins, on the left side of right outer joins, in full outer
joins, in aggregates, and in subquery expressions."
```
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