mysql/core_enum_seqmax_update.sql

diff --git a/mysql/core_enum_seqmax_update.sql b/mysql/core_enum_seqmax_update.sql
index e69de29..91b4c2f 100644 (file)
--- a/mysql/core_enum_seqmax_update.sql
+++ b/mysql/core_enum_seqmax_update.sql
@@ -0,0 +1,26 @@
+
+-- fixes sequencing..
+
+DROP FUNCTION IF EXISTS core_enum_seqmax_update;
+DELIMITER $$
+CREATE FUNCTION core_enum_seqmax_update( in_etype varchar(128))
+        RETURNS INT(11) DETERMINISTIC
+
+BEGIN
+        DECLARE v_seqmax INT(11);
+        SELECT MAX(seqid) +1 INTO v_seqmax FROM core_enum WHERE
+            etype = in_etype;
+        UPDATE core_enum SET seqmax = v_seqmax WHERE etype = in_etype;
+        RETURN v_seqmax;
+    END $$
+DELIMITER ;
+
+
+
+
+
+-- usage: SELECT core_enum_seqmax_update(DISTINCT(etype)) FROM core_enum;
+DROP TABLE IF EXISTS core_enum_tmp;
+CREATE TEMPORARY TABLE core_enum_tmp SELECT DISTINCT(etype) FROM core_enum;
+SELECT core_enum_seqmax_update(etype) FROM core_enum_tmp;
+DROP TABLE IF EXISTS core_enum_tmp;
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