Fix having clause bug for complex joins

We update column attributes of various clauses for a query
inluding target columns, select clauses when we introduce
new range table entries in the query.

It seems having clause column attributes were not updated.

This fix resolves the issue

src/backend/distributed/planner/multi_physical_planner.c

@@ -691,6 +691,18 @@ BuildJobQuery(MultiNode *multiNode, List *dependedJobList)
 		}
 	}
 
+	/* set correct column attributes for having columns */
+	if (updateColumnAttributes)
+	{
+		columnCell = NULL;
+		columnList = pull_var_clause_default((Node *) havingQual);
+		foreach(columnCell, columnList)
+		{
+			Var *column = (Var *) lfirst(columnCell);
+			UpdateColumnAttributes(column, rangeTableList, dependedJobList);
+		}
+	}
+
 	/*
 	 * Build the From/Where construct. We keep the where-clause list implicitly
 	 * AND'd, since both partition and join pruning depends on the clauses being