integration tests order by aggregation function

Author: emasab

x-pack/plugin/sql/qa/src/main/resources/agg-ordering.csv-spec

@@ -1,5 +1,5 @@
 aggSumWithColumnRepeatedWithOrderAsc
-SELECT gender AS g, gender, SUM(salary) AS s3, SUM(salary), SUM(salary) AS s5 FROM test_emp GROUP BY gender ORDER BY gender;
+SELECT gender AS g, gender, SUM(salary) AS s3, SUM(salary), SUM(salary) AS s5 FROM test_emp GROUP BY gender ORDER BY SUM(salary);
 
 g:s  | gender:s  | s3:i  | SUM(salary):i | s5:i
 null |null       |487605 |487605         |487605
@@ -8,7 +8,7 @@ M    |M          |2671054|2671054        |2671054
 ;
 
 aggSumWithAliasWithColumnRepeatedWithOrderDesc
-SELECT gender AS g, gender, SUM(salary) AS s3, SUM(salary), SUM(salary) AS s5 FROM test_emp GROUP BY g ORDER BY g DESC;
+SELECT gender AS g, gender, SUM(salary) AS s3, SUM(salary), SUM(salary) AS s5 FROM test_emp GROUP BY g ORDER BY s5 DESC;
 
 g:s  | gender:s  | s3:i  | SUM(salary):i | s5:i
 M    |M          |2671054|2671054        |2671054
@@ -17,7 +17,7 @@ null |null       |487605 |487605         |487605
 ;
 
 aggSumWithNumericRefWithColumnRepeatedWithOrderDesc
-SELECT gender AS g, gender, SUM(salary) AS s3, SUM(salary), SUM(salary) AS s5 FROM test_emp GROUP BY 2 ORDER BY 2 DESC;
+SELECT gender AS g, gender, SUM(salary) AS s3, SUM(salary), SUM(salary) AS s5 FROM test_emp GROUP BY 2 ORDER BY 3 DESC;
 
 g:s  | gender:s  | s3:i  | SUM(salary):i | s5:i
 M    |M          |2671054|2671054        |2671054