From: miker <miker@dcc99617-32d9-48b4-a31d-7c20da2025e4>
Date: Tue, 28 Jun 2005 20:53:22 +0000 (+0000)
Subject: org_unit proximity function (slow)
X-Git-Url: https://old-git.evergreen-ils.org/?a=commitdiff_plain;h=53d288ce9dbef8a8143fc539fa2def369a4b122a;p=Evergreen.git

org_unit proximity function (slow)


git-svn-id: svn://svn.open-ils.org/ILS/trunk@957 dcc99617-32d9-48b4-a31d-7c20da2025e4
---

diff --git a/Open-ILS/src/sql/Postgres/020.schema.functions.sql b/Open-ILS/src/sql/Postgres/020.schema.functions.sql
index 89fdca33ae..059aa79c22 100644
--- a/Open-ILS/src/sql/Postgres/020.schema.functions.sql
+++ b/Open-ILS/src/sql/Postgres/020.schema.functions.sql
@@ -76,3 +76,12 @@ CREATE OR REPLACE FUNCTION actor.org_unit_full_path ( INT ) RETURNS SETOF actor.
 	  FROM	actor.org_unit_descendants($1);
 ' LANGUAGE SQL STABLE;
 
+
+CREATE OR REPLACE FUNCTION actor.org_unit_proximity ( INT, INT ) RETURNS INT AS '
+	SELECT COUNT(id)::INT FROM (
+		select * from (SELECT id FROM  actor.org_unit_ancestors($1) UNION SELECT  id FROM  actor.org_unit_ancestors($2)) x
+			EXCEPT
+		select * from (SELECT id FROM  actor.org_unit_ancestors($1) INTERSECT SELECT  id FROM  actor.org_unit_ancestors($2)) y) z;
+' LANGUAGE SQL STABLE;
+
+