diff --git a/pkg/workload/schemachange/error_screening.go b/pkg/workload/schemachange/error_screening.go
index 6292014bee12..4d5ad403700d 100644
--- a/pkg/workload/schemachange/error_screening.go
+++ b/pkg/workload/schemachange/error_screening.go
@@ -560,14 +560,20 @@ SELECT count(*) > 0
 	return nil
 }
 
+func getValidGenerationErrors() errorCodeSet {
+	return errorCodeSet{
+		pgcode.NumericValueOutOfRange:    true,
+		pgcode.FloatingPointException:    true,
+		pgcode.InvalidTextRepresentation: true,
+	}
+}
+
 // isValidGenerationError these codes can be observed when evaluating values
 // for generated expressions. These are errors are not ignored, but added into
 // the expected set of errors.
 func isValidGenerationError(code string) bool {
 	pgCode := pgcode.MakeCode(code)
-	return pgCode == pgcode.NumericValueOutOfRange ||
-		pgCode == pgcode.FloatingPointException ||
-		pgCode == pgcode.InvalidTextRepresentation
+	return getValidGenerationErrors().contains(pgCode)
 }
 
 // validateGeneratedExpressionsForInsert goes through generated expressions and
diff --git a/pkg/workload/schemachange/operation_generator.go b/pkg/workload/schemachange/operation_generator.go
index f075e199533f..c447fee36163 100644
--- a/pkg/workload/schemachange/operation_generator.go
+++ b/pkg/workload/schemachange/operation_generator.go
@@ -1335,6 +1335,14 @@ func (og *operationGenerator) createTableAs(ctx context.Context, tx pgx.Tx) (*op
 		{code: pgcode.DuplicateColumn, condition: duplicateColumns},
 	}.add(opStmt.expectedExecErrors)
 
+	// Confirm the select itself doesn't run into any column generation errors,
+	// by executing it independently first until we add validation when adding
+	// generated columns. See issue: #81698?, which will allow us to remove this
+	// logic in the future.
+	if opStmt.expectedExecErrors.empty() {
+		opStmt.potentialExecErrors.merge(getValidGenerationErrors())
+	}
+
 	opStmt.sql = fmt.Sprintf(`CREATE TABLE %s AS %s FETCH FIRST %d ROWS ONLY`,
 		destTableName, selectStatement.String(), MaxRowsToConsume)
 	return opStmt, nil