We are changing the application server from WAS to JBOSS. During the migration, should we truncate the cache table listed below and any other specific tables to clean up ? or is this activity unnecessary? truncate table pega_rules.pr_sys_appcache_dep immediate; truncate table pega_rules.pr_sys_appcache_entry immediate; truncate table pega_rules.pr_sys_appcache_shortcut immediate; truncate table pega_rules.pr_sys_cache_dep immediate; truncate table pega_rules.pr_sys_cache_entry immediate; truncate table pega_rules.pr_sys_cache_impl immediate; truncate table pega_rules.pr_assembledclasses immediate; truncate table pega_rules.pr4_rule_sysgen immediate; truncate table pega_rules.pr_sys_rule_impl immediate; truncate table pega_data.pr_sys_updatescache immediate; truncate table pega_rules.pr_sys_app_hierarchy_flat immediate; truncate table pega_rules.pr_sys_app_ruleset_index immediate; truncate table pega_rules.pr_sys_class_ancestors immediate; truncate table pega_rules.pr_sysgen_static_content immediate;