Merge pull request #24424 from AfshanKhan/fix-add-stat-comp-in-sal-struct

fix: allow statistical component in salary structure.
diff --git a/erpnext/payroll/doctype/salary_structure/salary_structure.py b/erpnext/payroll/doctype/salary_structure/salary_structure.py
index 340f4e8..bf1c746 100644
--- a/erpnext/payroll/doctype/salary_structure/salary_structure.py
+++ b/erpnext/payroll/doctype/salary_structure/salary_structure.py
@@ -216,8 +216,9 @@
 	return frappe.db.sql("""
 		select t1.salary_component
 		from `tabSalary Component` t1, `tabSalary Component Account` t2
-		where t1.name = t2.parent
+		where (t1.name = t2.parent
 		and t1.type = %s 
-		and t2.company = %s
+		and t2.company = %s)
+		or (t1.statistical_component = 1)
 		order by salary_component
-	""", (filters['type'], filters['company']) )
+	""", (filters['type'], filters['company']))