CRM/CorePrevNextCachecivicrm_prevnext_cacheTable to cache items for navigation on civicrm searched results.3.4 id Prev Next Cache ID int unsigned true Number 3.4 id true entity_table Prev Next Entity Table varchar 64 physical tablename for entity being joined to discount, e.g. civicrm_event 3.4 entity_id1 Prev Next Entity ID 1 int unsigned true FK to entity table specified in entity_table column. 3.4 entity_id2 Prev Next Entity ID 2 int unsigned false FK to entity table specified in entity_table column. 3.4 cachekey Cache Key varchar 255 Unique path name for cache element of the searched item 3.4 data Prev Next Data longtext cached snapshot of the serialized data PHP 3.4 is_selected Is Selected boolean 0 true 4.2 index_all cachekey entity_id1 entity_id2 entity_table is_selected