srielau commented on code in PR #38937:
URL: https://github.com/apache/spark/pull/38937#discussion_r1042786058
##########
core/src/main/resources/error/error-classes.json:
##########
@@ -932,7 +932,7 @@
},
"NUM_COLUMNS_MISMATCH" : {
"message" : [
- "<operator> can only be performed on tables with the same number of
columns, but the first table has <refNumColumns> columns and the
<invalidOrdinalNum> table has <invalidNumColumns> columns."
+ "<operator> expects matching number of columns. But the left side
(target) has <leftNumCols> while the right side (source) has <rightNumCols>."
Review Comment:
I'm thinking of the operator being UNION (hence left and right).
So:
SET
INSERT
UNION
INTERSECT
EXCEPT
IN (?) -- this may go through struct logic not sure)
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