2026-03-12 20:23:15

tpt/aot/soe_indexes.sql

@@ -0,0 +1,39 @@
+-- undo optimizations to bad scalability
+
+-- ALTER SEQUENCE SOE.ORDERS_SEQ NOORDER CACHE 2;  -- enq: SV
+ALTER SEQUENCE SOE.ORDERS_SEQ NOORDER CACHE 2;   -- enq: SQ
+
+--@disable_restricting_fks SOE.ORDERS
+ALTER TABLE SOE.ORDER_ITEMS DISABLE CONSTRAINT ORDER_ITEMS_ORDER_ID_FK;
+ALTER TABLE soe.orders DISABLE CONSTRAINT order_pk;
+
+DROP INDEX soe.order_pk;
+DROP INDEX soe.ord_order_date_ix;
+
+CREATE UNIQUE INDEX SOE.ORDER_PK ON SOE.ORDERS (ORDER_ID) 
+NOLOGGING TABLESPACE SOE PARALLEL 4;
+
+CREATE INDEX SOE.ORD_ORDER_DATE_IX ON SOE.ORDERS (ORDER_DATE) 
+NOLOGGING TABLESPACE SOE PARALLEL 4;
+
+CREATE BITMAP INDEX SOE.ORDER_MAGIC ON SOE.ORDERS(ORDER_ID,ORDER_DATE)
+NOLOGGING TABLESPACE SOE PARALLEL 4;
+
+ALTER INDEX SOE.ORDER_PK NOPARALLEL;
+ALTER INDEX SOE.ORD_ORDER_DATE_IX NOPARALLEL;
+ALTER INDEX SOE.ORDER_MAGIC NOPARALLEL;
+
+ALTER TABLE soe.orders ENABLE VALIDATE CONSTRAINT order_pk;
+
+
+
+ALTER SESSION SET ddl_lock_timeout = 10;
+
+ALTER TABLE soe.orders ENABLE VALIDATE CONSTRAINT order_pk;
+ALTER TABLE soe.orders ENABLE VALIDATE CONSTRAINT orders_customer_id_fk;
+
+
+-- reverse key
+-- recreate above indexes with REVERSE flag
+
+