cloud-fan commented on code in PR #43465:
URL: https://github.com/apache/spark/pull/43465#discussion_r1368141330
##########
common/utils/src/main/resources/error/error-classes.json:
##########
@@ -31,6 +31,15 @@
],
"sqlState" : "42702"
},
+ "AMBIGUOUS_COLUMN_REFERENCE" : {
+ "message" : [
+ "Column <name> is ambiguous. It's because you joined several DataFrame
together, and some of these DataFrames are the same.",
Review Comment:
It's different. This is for found more than one matching dataframes, but
`AMBIGUOUS_REFERENCE` is for found more than one matching attribute from
candidates.
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