[GitHub] [spark] bjornjorgensen commented on a diff in pull request #38937: [SPARK-41406][SQL] Refactor error message for `NUM_COLUMNS_MISMATCH` to make it more generic

[GitBox <gi...@apache.org>]

bjornjorgensen commented on code in PR #38937:
URL: https://github.com/apache/spark/pull/38937#discussion_r1041987130


##########
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:
   expects matching number of columns -> expect matching numbers of columns



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