diff --git a/migrations/000.023.sql b/migrations/000.023.sql
new file mode 100644
index 0000000..e54fc4e
--- /dev/null
+++ b/migrations/000.023.sql
@@ -0,0 +1,18 @@
+-- PW-597
+DROP INDEX IF EXISTS ix_confirmed;
+
+CREATE  INDEX ix_confirmed
+    ON  "order-orders_fields" (value)
+ WHERE  fieldid = 175; -- 4984 kB
+
+DROP INDEX IF EXISTS ix_creditinvoice;
+
+CREATE  INDEX ix_creditinvoice
+    ON  "order-orders_fields" (value)
+ WHERE  fieldid = 199; -- 184 kB
+
+DROP INDEX IF EXISTS ix_invoiceid;
+
+CREATE  INDEX ix_invoiceid
+    ON  "order-orders_fields" (value)
+ WHERE  fieldid = 172; -- 4360 kB