MDEV-25866 Upgrade from pre-10.5.10 to 10.5.10 causes CHECK errors on…

… encrypted Aria tables

Hard to do a test case, but tested by hand and verified that mysql_upgrade
will update the encrypted MariaDB tables.

storage/maria/ha_maria.cc

@@ -4198,6 +4198,26 @@ int ha_maria::find_unique_row(uchar *record, uint constrain_no)
   return rc;
 }
 
+
+/**
+   Check if a table needs to be repaired
+*/
+
+int ha_maria::check_for_upgrade(HA_CHECK_OPT *check)
+{
+  if (table->s->mysql_version && table->s->mysql_version <= 100509 &&
+      (file->s->base.extra_options & MA_EXTRA_OPTIONS_ENCRYPTED))
+  {
+    /*
+      Encrypted tables before 10.5.9 had a bug where LSN was not
+      stored on the pages. These must be repaired!
+    */
+    return HA_ADMIN_NEEDS_ALTER;
+  }
+  return HA_ADMIN_OK;
+}
+
+
 struct st_mysql_storage_engine maria_storage_engine=
 { MYSQL_HANDLERTON_INTERFACE_VERSION };
 

storage/maria/ha_maria.h

@@ -144,6 +144,7 @@ class __attribute__((visibility("default"))) ha_maria :public handler
   int check(THD * thd, HA_CHECK_OPT * check_opt) override;
   int analyze(THD * thd, HA_CHECK_OPT * check_opt) override;
   int repair(THD * thd, HA_CHECK_OPT * check_opt) override;
+  int check_for_upgrade(HA_CHECK_OPT *check_opt) override;
   bool check_and_repair(THD * thd) override final;
   bool is_crashed() const override final;
   bool is_changed() const;