Deduplication complete!

src/sql/0-run-first/contributions.sql

@@ -17,8 +17,9 @@ WHERE engineer_contributions.`Project Number` in (SELECT DISTINCT `Project Numbe
   AND users.priv & POW(2, 25) > 0;
 
 ALTER TABLE engineer_contributions
-    ADD COLUMN id INT AUTO_INCREMENT KEY FIRST;
+    ADD COLUMN IF NOT EXISTS  id INT AUTO_INCREMENT KEY FIRST;
 
+#https://stackoverflow.com/a/9639548
 DELETE
 FROM engineer_contributions
 WHERE id IN (SELECT bad_rows.id
@@ -31,4 +32,6 @@ WHERE id IN (SELECT bad_rows.id
                                     bad_rows.`Project Number`
                                      AND good_rows.min_id <> bad_rows.id);
 
-ALTER TABLE engineer_contributions DROP COLUMN IF EXISTS id;
+ALTER TABLE engineer_contributions DROP COLUMN IF EXISTS id;
+
+select * from engineer_contributions;