Hisoka-X commented on code in PR #42220:
URL: https://github.com/apache/spark/pull/42220#discussion_r1297961931


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TableOutputResolver.scala:
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@@ -238,11 +238,17 @@ object TableOutputResolver {
 
     if (reordered.length == expectedCols.length) {
       if (matchedCols.size < inputCols.length) {
-        val extraCols = inputCols.filterNot(col => 
matchedCols.contains(col.name))
-          .map(col => s"${toSQLId(col.name)}").mkString(", ")
-        throw 
QueryCompilationErrors.incompatibleDataToTableExtraStructFieldsError(
-          tableName, colPath.quoted, extraCols
-        )
+        if (colPath.isEmpty) {
+          val cannotFindCol = expectedCols.filter(col => 
!matchedCols.contains(col.name)).head.name
+          throw 
QueryCompilationErrors.incompatibleDataToTableCannotFindDataError(tableName,

Review Comment:
   > if (reordered.length == expectedCols.length) I think this means there is 
no missing col
   
   Yep, but there are some special for V1 case, eg: table [x, y, z], inputcol: 
[x, y, k], when we set `fillDefaultValue` as true, the  `reordered` will be [x, 
y, null as z]. Then `reordered.length == expectedCols.length` will be true.
   
   This PR only change the error to `CANNOT_FIND_DATA`, but I'm not sure we 
should support case like `table [x, y, z], inputcol: [x, y, k]`? Then just put 
`z` as `null`.
   
   In the future, when we support default value on DS V2, we will face this 
problem again.
   
   
   



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