[DB] show-variants to help, and remove variants removes also #2 versions

1 files changed, 23 insertions, 0 deletions

diff --git a/show-variants.mysql b/show-variants.mysql
new file mode 100644
index 0000000..3eeeeac
--- /dev/null
+++ b/show-variants.mysql
@@ -0,0 +1,23 @@
+
+USE lastfm
+
+
+/**
+ * Deletes all entries in badges
+ * for each unique username + type
+ * where more than one style or color exists
+ */
+
+DROP TABLE IF EXISTS tmp ;
+CREATE TEMPORARY TABLE tmp (SELECT username, type, COUNT(username) AS count FROM badges GROUP BY username, type ) ;
+
+SELECT badges.username, badges.type, badges.style, badges.color, badges.hits, tmp.count
+	FROM badges, tmp
+	WHERE badges.username = tmp.username
+	AND ( (badges.type = tmp.type AND tmp.count > 1)
+	   OR ( (badges.type LIKE concat(tmp.type,"%") OR tmp.type LIKE concat(badges.type,"%"))
+		 AND badges.type != tmp.type )
+	   ) ;
+
+DROP TABLE tmp ;
+