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class="mw-pt-languages noprint navigation-not-searchable" lang="en" dir="ltr"><div class="mw-pt-languages-label">Languages:</div><ul class="mw-pt-languages-list"><li><a href="/wiki/Manual:Primary_key_storage_in_other_fields/de" class="mw-pt-progress mw-pt-progress--low" title="Manual:Primary key storage in other fields/de (8% translated)" lang="de" dir="ltr">Deutsch</a></li> <li><span class="mw-pt-languages-ui mw-pt-languages-selected mw-pt-progress mw-pt-progress--complete" lang="en" dir="ltr">English</span></li> <li><a href="/wiki/Manual:Primary_key_storage_in_other_fields/es" class="mw-pt-progress mw-pt-progress--med" title="Manual:Primary key storage in other fields/es (23% translated)" lang="es" dir="ltr">español</a></li> <li><a href="/wiki/Manual:Primary_key_storage_in_other_fields/fr" class="mw-pt-progress mw-pt-progress--complete" title="Clé primaire de stockage des autres champs (100% translated)" lang="fr" dir="ltr">français</a></li> <li><a href="/wiki/Manual:Primary_key_storage_in_other_fields/pl" class="mw-pt-progress mw-pt-progress--low" title="Manual:Primary key storage in other fields/pl (8% translated)" lang="pl" dir="ltr">polski</a></li> <li><a href="/wiki/Manual:Primary_key_storage_in_other_fields/cs" class="mw-pt-progress mw-pt-progress--complete" title="Příručka:Primární úložiště klíčů v jiných polích (100% translated)" lang="cs" dir="ltr">čeština</a></li> <li><a href="/wiki/Manual:Primary_key_storage_in_other_fields/uk" class="mw-pt-progress mw-pt-progress--complete" title="Посібник:Зберігання первинного ключа в інших полях (100% translated)" lang="uk" dir="ltr">українська</a></li> <li><a href="/wiki/Manual:Primary_key_storage_in_other_fields/ar" class="mw-pt-progress mw-pt-progress--med" title="Manual:Primary key storage in other fields/ar (23% translated)" lang="ar" dir="rtl">العربية</a></li> <li><a href="/wiki/Manual:Primary_key_storage_in_other_fields/zh" class="mw-pt-progress mw-pt-progress--med" title="手册:其他字段上的主关键存储 (23% translated)" lang="zh" dir="ltr">中文</a></li> <li><a href="/wiki/Manual:Primary_key_storage_in_other_fields/ja" class="mw-pt-progress mw-pt-progress--high" title="Manual:他のフィールドへの主キーの格納 (92% translated)" lang="ja" dir="ltr">日本語</a></li> <li><a href="/wiki/Manual:Primary_key_storage_in_other_fields/ko" class="mw-pt-progress mw-pt-progress--med" title="Manual:다른 필드의 기본 키 스토리지 (46% translated)" lang="ko" dir="ltr">한국어</a></li></ul></div> <p>This is a page to track primary key storage in other fields in the core and in extensions used on WMF wikis. Nearly all of the primary keys are auto-incrementing numerical keys. Exceptions are marked accordingly. <a href="/wiki/Special:MyLanguage/Manual:log_search_table#ls_value" title="Special:MyLanguage/Manual:log search table">log_search.ls_value</a> is not included here, but it can contain any number of primary keys. </p> <div class="mw-heading mw-heading2"><h2 id="Usage">Usage</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manual:Primary_key_storage_in_other_fields&action=edit&section=1" title="Edit section: Usage"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Core">Core</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manual:Primary_key_storage_in_other_fields&action=edit&section=2" title="Edit section: Core"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable sortable"> <tbody><tr> <th>Primary key </th> <th>Storage elsewhere </th></tr> <tr> <td rowspan="7"><a href="/wiki/Special:MyLanguage/Manual:actor_table#actor_id" title="Special:MyLanguage/Manual:actor table">actor.actor_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:archive_table#ar_actor" title="Special:MyLanguage/Manual:archive table">archive.ar_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:filearchive_table#fa_actor" title="Special:MyLanguage/Manual:filearchive table">filearchive.fa_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:image_table#img_actor" title="Special:MyLanguage/Manual:image table">image.img_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:ipblocks_table#ipb_by_actor" title="Special:MyLanguage/Manual:ipblocks table">ipblocks.ipb_by_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:oldimage_table#oi_actor" title="Special:MyLanguage/Manual:oldimage table">oldimage.oi_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:logging_table#log_actor" title="Special:MyLanguage/Manual:logging table">logging.log_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:recentchanges_table#rc_actor" title="Special:MyLanguage/Manual:recentchanges table">recentchanges.rc_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:archive_table#ar_id" title="Special:MyLanguage/Manual:archive table">archive.ar_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:category_table#cat_id" title="Special:MyLanguage/Manual:category table">category.cat_id</a> </td> <td>N/A </td></tr> <tr> <td rowspan="12"><a href="/wiki/Special:MyLanguage/Manual:comment_table#comment_id" title="Special:MyLanguage/Manual:comment table">comment.comment_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:revision_comment_temp_table#revcomment_comment_id" title="Special:MyLanguage/Manual:revision comment temp table">revision_comment_temp.revcomment_comment_id</a> <span style="color:#d33">(removed in 1.40)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:archive_table#ar_comment_id" title="Special:MyLanguage/Manual:archive table">archive.ar_comment_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:ipblocks_table#ipb_reason_id" title="Special:MyLanguage/Manual:ipblocks table">ipblocks.ipb_reason_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:image_table#img_description_id" title="Special:MyLanguage/Manual:image table">image.img_description_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:image_comment_temp_table#imgcomment_description_id" title="Special:MyLanguage/Manual:image comment temp table">image_comment_temp.imgcomment_description_id</a> <span style="color:#d33">(removed in 1.31)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:oldimage_table#oi_description_id" title="Special:MyLanguage/Manual:oldimage table">oldimage.oi_description_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:filearchive_table#fa_deleted_reason_id" title="Special:MyLanguage/Manual:filearchive table">filearchive.fa_deleted_reason_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:filearchive_table#fa_description_id" title="Special:MyLanguage/Manual:filearchive table">filearchive.fa_description_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:recentchanges_table#rc_comment_id" title="Special:MyLanguage/Manual:recentchanges table">recentchanges.rc_comment_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:logging_table#log_comment_id" title="Special:MyLanguage/Manual:logging table">logging.log_comment_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:protected_titles_table#pt_reason_id" title="Special:MyLanguage/Manual:protected titles table">protected_titles.pt_reason_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:revision_table#rev_comment_id" title="Special:MyLanguage/Manual:revision table">revision.rev_comment_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:content_table#content_id" title="Special:MyLanguage/Manual:content table">content.content_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:slots_table#slot_content_id" title="Special:MyLanguage/Manual:slots table">slots.slot_content_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:externallinks_table#el_id" title="Special:MyLanguage/Manual:externallinks table">externallinks.el_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:filearchive_table#fa_id" title="Special:MyLanguage/Manual:filearchive table">filearchive.fa_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:image_table#img_name" title="Special:MyLanguage/Manual:image table">image.img_name</a> <p><small>(Note this primary key is not a numerical index, but the file name!)</small> </p> </td> <td><a href="/wiki/Special:MyLanguage/Manual:image_comment_temp_table#imgcomment_name" title="Special:MyLanguage/Manual:image comment temp table">image_comment_temp.imgcomment_name</a> <span style="color:#d33">(removed in 1.31)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:ip_changes_table#ipc_rev_id" title="Special:MyLanguage/Manual:ip changes table">ip_changes.ipc_rev_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:ipblocks_table#ipb_id" title="Special:MyLanguage/Manual:ipblocks table">ipblocks.ipb_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:ipblocks_table#ipb_parent_block_id" title="Special:MyLanguage/Manual:ipblocks table">ipblocks.ipb_parent_block_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:job_table#job_id" title="Special:MyLanguage/Manual:job table">job.job_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:linktarget_table#lt_id" title="Special:MyLanguage/Manual:linktarget table">linktarget.lt_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:pagelinks_table#pl_target_id" title="Special:MyLanguage/Manual:pagelinks table">pagelinks.pl_target_id</a> </td></tr> <tr> <td rowspan="4"><a href="/wiki/Special:MyLanguage/Manual:logging_table#log_id" title="Special:MyLanguage/Manual:logging table">logging.log_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:change_tag_table#ct_log_id" title="Special:MyLanguage/Manual:change tag table">change_tag.ct_log_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:log_search_table#ls_log_id" title="Special:MyLanguage/Manual:log search table">log_search.ls_log_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:recentchanges_table#rc_logid" title="Special:MyLanguage/Manual:recentchanges table">recentchanges.rc_logid</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:tag_summary_table#ts_log_id" title="Special:MyLanguage/Manual:tag summary table">tag_summary.ts_log_id</a> <span style="color:#d33">(removed in 1.33)</span> </td></tr> <tr> <td rowspan="16"><a href="/wiki/Special:MyLanguage/Manual:page_table#page_id" title="Special:MyLanguage/Manual:page table">page.page_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:archive_table#ar_page_id" title="Special:MyLanguage/Manual:archive table">archive.ar_page_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:categorylinks_table#cl_from" title="Special:MyLanguage/Manual:categorylinks table">categorylinks.cl_from</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:externallinks_table#el_from" title="Special:MyLanguage/Manual:externallinks table">externallinks.el_from</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:hitcounter_table#hc_id" title="Special:MyLanguage/Manual:hitcounter table">hitcounter.hc_id</a> <span style="color:#d33">(removed in 1.25)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:imagelinks_table#il_from" title="Special:MyLanguage/Manual:imagelinks table">imagelinks.il_from</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:iwlinks_table#iwl_from" title="Special:MyLanguage/Manual:iwlinks table">iwlinks.iwl_from</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:langlinks_table#ll_from" title="Special:MyLanguage/Manual:langlinks table">langlinks.ll_from</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:logging_table#log_page" title="Special:MyLanguage/Manual:logging table">logging.log_page</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:pagelinks_table#pl_from" title="Special:MyLanguage/Manual:pagelinks table">pagelinks.pl_from</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:page_props_table#pp_page" title="Special:MyLanguage/Manual:page props table">page_props.pp_page</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:page_restrictions_table#pr_page" title="Special:MyLanguage/Manual:page restrictions table">page_restrictions.pr_page</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:recentchanges_table#rc_cur_id" title="Special:MyLanguage/Manual:recentchanges table">recentchanges.rc_cur_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:redirect_table#rd_from" title="Special:MyLanguage/Manual:redirect table">redirect.rd_from</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:revision_table#rev_page" title="Special:MyLanguage/Manual:revision table">revision.rev_page</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:searchindex_table#si_page" title="Special:MyLanguage/Manual:searchindex table">searchindex.si_page</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:templatelinks_table#tl_from" title="Special:MyLanguage/Manual:templatelinks table">templatelinks.tl_from</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:page_restrictions_table#pr_id" title="Special:MyLanguage/Manual:page restrictions table">page_restrictions.pr_id</a> </td> <td>N/A </td></tr> <tr> <td rowspan="2"><a href="/wiki/Special:MyLanguage/Manual:recentchanges_table#rc_id" title="Special:MyLanguage/Manual:recentchanges table">recentchanges.rc_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:change_tag_table#ct_rc_id" title="Special:MyLanguage/Manual:change tag table">change_tag.ct_rc_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:tag_summary_table#ts_rc_id" title="Special:MyLanguage/Manual:tag summary table">tag_summary.ts_rc_id</a> <span style="color:#d33">(removed in 1.33)</span> </td></tr> <tr> <td rowspan="11"><a href="/wiki/Special:MyLanguage/Manual:revision_table#rev_id" title="Special:MyLanguage/Manual:revision table">revision.rev_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:archive_table#ar_rev_id" title="Special:MyLanguage/Manual:archive table">archive.ar_rev_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:archive_table#ar_parent_id" title="Special:MyLanguage/Manual:archive table">archive.ar_parent_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:change_tag_table#ct_rev_id" title="Special:MyLanguage/Manual:change tag table">change_tag.ct_rev_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:ip_changes_table#ipc_rev_id" title="Special:MyLanguage/Manual:ip changes table">ip_changes.ipc_rev_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:page_table#page_latest" title="Special:MyLanguage/Manual:page table">page.page_latest</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:recentchanges_table#rc_this_oldid" title="Special:MyLanguage/Manual:recentchanges table">recentchanges.rc_this_oldid</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:recentchanges_table#rc_last_oldid" title="Special:MyLanguage/Manual:recentchanges table">recentchanges.rc_last_oldid</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:revision_table#rev_parent_id" title="Special:MyLanguage/Manual:revision table">revision.rev_parent_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:revision_comment_temp_table#revcomment_rev" title="Special:MyLanguage/Manual:revision comment temp table">revision_comment_temp.revcomment_rev</a> <span style="color:#d33">(removed in 1.40)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:tag_summary_table#ts_rev_id" title="Special:MyLanguage/Manual:tag summary table">tag_summary.ts_rev_id</a> <span style="color:#d33">(removed in 1.33)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:slots_table#slot_revision_id" title="Special:MyLanguage/Manual:slots table">slots.slot_revision_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:sites_table#site_id" title="Special:MyLanguage/Manual:sites table">sites.site_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:site_stats_table#ss_row_id" title="Special:MyLanguage/Manual:site stats table">site_stats.ss_row_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:slot_roles_table#role_id" title="Special:MyLanguage/Manual:slot roles table">slot_roles.role_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:slots_table#slot_role_id" title="Special:MyLanguage/Manual:slots table">slots.slot_role_id</a> </td></tr> <tr> <td rowspan="2"><a href="/wiki/Special:MyLanguage/Manual:text_table#old_id" title="Special:MyLanguage/Manual:text table">text.old_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:archive_table#ar_text_id" title="Special:MyLanguage/Manual:archive table">archive.ar_text_id</a> <span style="color:#d33">(removed in 1.35)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:revision_table#rev_text_id" title="Special:MyLanguage/Manual:revision table">revision.rev_text_id</a> <span style="color:#d33">(removed in 1.35)</span> </td></tr> <tr> <td rowspan="17"><a href="/wiki/Special:MyLanguage/Manual:user_table#user_id" title="Special:MyLanguage/Manual:user table">user.user_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:archive_table#ar_user" title="Special:MyLanguage/Manual:archive table">archive.ar_user</a> <span style="color:#d33">(removed in 1.34)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:filearchive_table#fa_deleted_user" title="Special:MyLanguage/Manual:filearchive table">filearchive.fa_deleted_user</a> <span style="color:#d33">(removed in 1.34)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:filearchive_table#fa_user" title="Special:MyLanguage/Manual:filearchive table">filearchive.fa_user</a> <span style="color:#d33">(removed in 1.34)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:image_table#img_user" title="Special:MyLanguage/Manual:image table">image.img_user</a> <span style="color:#d33">(removed in 1.34)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:ipblocks_table#ipb_user" title="Special:MyLanguage/Manual:ipblocks table">ipblocks.ipb_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:ipblocks_table#ipb_by" title="Special:MyLanguage/Manual:ipblocks table">ipblocks.ipb_by</a> <span style="color:#d33">(removed in 1.34)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:logging_table#log_user" title="Special:MyLanguage/Manual:logging table">logging.log_user</a> <span style="color:#d33">(removed in 1.34)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:oldimage_table#oi_user" title="Special:MyLanguage/Manual:oldimage table">oldimage.oi_user</a> <span style="color:#d33">(removed in 1.34)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:protected_titles_table#pt_user" title="Special:MyLanguage/Manual:protected titles table">protected_titles.pt_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:recentchanges_table#rc_user" title="Special:MyLanguage/Manual:recentchanges table">recentchanges.rc_user</a> <span style="color:#d33">(removed in 1.34)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:revision_table#rev_user" title="Special:MyLanguage/Manual:revision table">revision.rev_user</a> <span style="color:#d33">(removed in 1.35)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:uploadstash_table#us_user" title="Special:MyLanguage/Manual:uploadstash table">uploadstash.us_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:user_former_groups_table#ufg_user" title="Special:MyLanguage/Manual:user former groups table">user_former_groups.ufg_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:user_groups_table#ug_user" title="Special:MyLanguage/Manual:user groups table">user_groups.ug_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:user_newtalk_table#user_id" title="Special:MyLanguage/Manual:user newtalk table">user_newtalk.user_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:user_properties_table#up_user" title="Special:MyLanguage/Manual:user properties table">user_properties.up_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:watchlist_table#wl_user" title="Special:MyLanguage/Manual:watchlist table">watchlist.wl_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:watchlist_table#wl_id" title="Special:MyLanguage/Manual:watchlist table">watchlist.wl_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Manual:watchlist_expiry_table#we_item" title="Special:MyLanguage/Manual:watchlist expiry table">watchlist_expiry.we_item</a> </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Extensions_used_on_Wikimedia_wikis">Extensions used on Wikimedia wikis</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manual:Primary_key_storage_in_other_fields&action=edit&section=3" title="Edit section: Extensions used on Wikimedia wikis"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable sortable"> <tbody><tr> <th>Primary key </th> <th>Storage elsewhere </th></tr> <tr> <td rowspan="5"><a href="/wiki/Special:MyLanguage/Manual:actor_table#actor_id" title="Special:MyLanguage/Manual:actor table">actor.actor_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_changes_table#cuc_actor" title="Special:MyLanguage/Extension:CheckUser/cu changes table">cu_changes.cuc_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_log_event_table#cule_actor" title="Special:MyLanguage/Extension:CheckUser/cu log event table">cu_log_event.cule_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_private_event_table#cupe_actor" title="Special:MyLanguage/Extension:CheckUser/cu private event table">cu_private_event.cupe_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_log_table#cul_actor" title="Special:MyLanguage/Extension:CheckUser/cu log table">cu_log.cul_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:DiscussionTools/discussiontools_items_table#it_actor" title="Special:MyLanguage/Extension:DiscussionTools/discussiontools items table">discussiontools_items.it_actor</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:archive_table#ar_id" title="Special:MyLanguage/Manual:archive table">archive.ar_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:category_table#cat_id" title="Special:MyLanguage/Manual:category table">category.cat_id</a> </td> <td>N/A </td></tr> <tr> <td rowspan="4"><a href="/wiki/Special:MyLanguage/Manual:comment_table#comment_id" title="Special:MyLanguage/Manual:comment table">comment.comment_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_changes_table#cuc_comment_id" title="Special:MyLanguage/Extension:CheckUser/cu changes table">cu_changes.cuc_comment_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_private_event_table#cupe_comment_id" title="Special:MyLanguage/Extension:CheckUser/cu private event table">cu_private_event.cupe_comment_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_log_table#cul_reason_id" title="Special:MyLanguage/Extension:CheckUser/cu log table">cu_log.cul_reason_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_log_table#cul_reason_plaintext_id" title="Special:MyLanguage/Extension:CheckUser/cu log table">cu_log.cul_reason_plaintext_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:content_table#content_id" title="Special:MyLanguage/Manual:content table">content.content_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:externallinks_table#el_id" title="Special:MyLanguage/Manual:externallinks table">externallinks.el_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:filearchive_table#fa_id" title="Special:MyLanguage/Manual:filearchive table">filearchive.fa_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:image_table#img_name" title="Special:MyLanguage/Manual:image table">image.img_name</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:ip_changes_table#ipc_rev_id" title="Special:MyLanguage/Manual:ip changes table">ip_changes.ipc_rev_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:ipblocks_table#ipb_id" title="Special:MyLanguage/Manual:ipblocks table">ipblocks.ipb_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:job_table#job_id" title="Special:MyLanguage/Manual:job table">job.job_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:linktarget_table#lt_id" title="Special:MyLanguage/Manual:linktarget table">linktarget.lt_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:logging_table#log_id" title="Special:MyLanguage/Manual:logging table">logging.log_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_log_event_table#cule_log_id" title="Special:MyLanguage/Extension:CheckUser/cu log event table">cu_log_event.cule_log_id</a> </td></tr> <tr> <td rowspan="15"><a href="/wiki/Special:MyLanguage/Manual:page_table#page_id" title="Special:MyLanguage/Manual:page table">page.page_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Extension:TitleKey/titlekey_table#tk_page" title="Special:MyLanguage/Extension:TitleKey/titlekey table">titlekey.tk_page</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_changes_table#cuc_page_id" title="Special:MyLanguage/Extension:CheckUser/cu changes table">cu_changes.cuc_page_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_private_event_table#cupe_page" title="Special:MyLanguage/Extension:CheckUser/cu private event table">cu_private_event.cupe_page</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Echo/echo_event_table#event_page_id" title="Special:MyLanguage/Extension:Echo/echo event table">echo_event.event_page_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Echo/echo_target_page_table#etp_page" title="Special:MyLanguage/Extension:Echo/echo target page table">echo_target_page.etp_page</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:FlaggedRevs/flaggedpages_table#fp_page_id" title="Special:MyLanguage/Extension:FlaggedRevs/flaggedpages table">flaggedpages.fp_page_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:FlaggedRevs/flaggedpage_pending_table#fpp_page_id" title="Special:MyLanguage/Extension:FlaggedRevs/flaggedpage pending table">flaggedpage_pending.fpp_page_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:FlaggedRevs/flaggedrevs_table#fr_page_id" title="Special:MyLanguage/Extension:FlaggedRevs/flaggedrevs table">flaggedrevs.fr_page_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:FlaggedRevs/flaggedpage_config_table#fpc_page_id" title="Special:MyLanguage/Extension:FlaggedRevs/flaggedpage config table">flaggedpage_config.fpc_page_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Proofread_Page/pr_index_table#pr_page_id" title="Special:MyLanguage/Extension:Proofread Page/pr index table">pr_index.pr_page_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Translate/translate_sections_table#trs_page" title="Special:MyLanguage/Extension:Translate/translate sections table">translate_sections.trs_page</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Translate/revtag_table#rt_page" title="Special:MyLanguage/Extension:Translate/revtag table">revtag.rt_page</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Translate/translate_reviews_table#trr_page" title="Special:MyLanguage/Extension:Translate/translate reviews table">translate_reviews.trr_page</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Translate/translate_translatable_bundles_table#ttb_page_id" title="Special:MyLanguage/Extension:Translate/translate translatable bundles table">translate_translatable_bundles.ttb_page_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Wikispeech/wikispeech_utterance_table#wsu_page_id" title="Special:MyLanguage/Extension:Wikispeech/wikispeech utterance table">wikispeech_utterance.wsu_page_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:page_restrictions_table#pr_id" title="Special:MyLanguage/Manual:page restrictions table">page_restrictions.pr_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:recentchanges_table#rc_id" title="Special:MyLanguage/Manual:recentchanges table">recentchanges.rc_id</a> </td> <td>N/A </td></tr> <tr> <td rowspan="7"><a href="/wiki/Special:MyLanguage/Manual:revision_table#rev_id" title="Special:MyLanguage/Manual:revision table">revision.rev_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Extension:AbuseFilter/abuse_filter_log_table#afl_rev_id" title="Special:MyLanguage/Extension:AbuseFilter/abuse filter log table">abuse_filter_log.afl_rev_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_changes_table#cuc_this_oldid" title="Special:MyLanguage/Extension:CheckUser/cu changes table">cu_changes.cuc_this_oldid</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_changes_table#cuc_last_oldid" title="Special:MyLanguage/Extension:CheckUser/cu changes table">cu_changes.cuc_last_oldid</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CreditsSource/revsrc_table#revsrc_id" title="Special:MyLanguage/Extension:CreditsSource/revsrc table">revsrc.revsrc_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:FlaggedRevs/flaggedrevs_table#fr_rev_id" title="Special:MyLanguage/Extension:FlaggedRevs/flaggedrevs table">flaggedrevs.fr_rev_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Translate/revtag_table#rt_revision" title="Special:MyLanguage/Extension:Translate/revtag table">revtag.rt_revision</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Translate/translate_reviews_table#trr_revision" title="Special:MyLanguage/Extension:Translate/translate reviews table">translate_reviews.trr_revision</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:sites_table#site_id" title="Special:MyLanguage/Manual:sites table">sites.site_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:site_stats_table#ss_row_id" title="Special:MyLanguage/Manual:site stats table">site_stats.ss_row_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:slot_roles_table#role_id" title="Special:MyLanguage/Manual:slot roles table">slot_roles.role_id</a> </td> <td>N/A </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:text_table#old_id" title="Special:MyLanguage/Manual:text table">text.old_id</a> </td> <td>N/A </td></tr> <tr> <td rowspan="14"><a href="/wiki/Special:MyLanguage/Manual:user_table#user_id" title="Special:MyLanguage/Manual:user table">user.user_id</a> </td> <td><a href="/wiki/Special:MyLanguage/Extension:AbuseFilter/abuse_filter_table#af_user" title="Special:MyLanguage/Extension:AbuseFilter/abuse filter table">abuse_filter.af_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:AbuseFilter/abuse_filter_history_table#afh_user" title="Special:MyLanguage/Extension:AbuseFilter/abuse filter history table">abuse_filter_history.afh_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:AbuseFilter/abuse_filter_log_table#afl_user" title="Special:MyLanguage/Extension:AbuseFilter/abuse filter log table">abuse_filter_log.afl_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_changes_table#cuc_user" title="Special:MyLanguage/Extension:CheckUser/cu changes table">cu_changes.cuc_user</a> <span style="color:#d33">(removed in 1.39)</span> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_log_table#cul_user" title="Special:MyLanguage/Extension:CheckUser/cu log table">cu_log.cul_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:CheckUser/cu_log_table#cul_target_id" title="Special:MyLanguage/Extension:CheckUser/cu log table">cu_log.cul_target_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Echo/echo_notification_table#notification_user" title="Special:MyLanguage/Extension:Echo/echo notification table">echo_notification.notification_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:Echo/echo_email_batch_table#eeb_user_id" title="Special:MyLanguage/Extension:Echo/echo email batch table">echo_email_batch.eeb_user_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:FlaggedRevs/flaggedrevs_table#fr_user" title="Special:MyLanguage/Extension:FlaggedRevs/flaggedrevs table">flaggedrevs.fr_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:FlaggedRevs/flaggedrevs_promote_table#frp_user_id" title="Special:MyLanguage/Extension:FlaggedRevs/flaggedrevs promote table">flaggedrevs_promote.frp_user_id</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:LoginNotify/loginnotify_seen_net_table#lsn_user" title="Special:MyLanguage/Extension:LoginNotify/loginnotify seen net table">loginnotify_seen_net.lsn_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:SecurePoll/securepoll_lists_table#li_member" title="Special:MyLanguage/Extension:SecurePoll/securepoll lists table">securepoll_lists.li_member</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:SecurePoll/securepoll_elections_table#el_owner" title="Special:MyLanguage/Extension:SecurePoll/securepoll elections table">securepoll_elections.el_owner</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Extension:SecurePoll/securepoll_strike_table#st_user" title="Special:MyLanguage/Extension:SecurePoll/securepoll strike table">securepoll_strike.st_user</a> </td></tr> <tr> <td><a href="/wiki/Special:MyLanguage/Manual:watchlist_table#wl_id" title="Special:MyLanguage/Manual:watchlist table">watchlist.wl_id</a> </td> <td>N/A </td></tr></tbody></table> <div class="navbox-styles nomobile"><style data-mw-deduplicate="TemplateStyles:r6230902">.mw-parser-output .navbox{border:1px solid #aaa;box-sizing:border-box;width:100%;margin:auto;clear:both;font-size:88%;text-align:center;padding:1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox th,.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow{text-align:center;padding-left:1em;padding-right:1em}.mw-parser-output th.navbox-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background:#fdfdfd}.mw-parser-output .navbox-list{border-color:#fdfdfd}.mw-parser-output .navbox th,.mw-parser-output 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ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li,.mw-parser-output .hlist .mw-empty-elt{display:none}.mw-parser-output .hlist dt:after{content:": "}.mw-parser-output .hlist dd:after,.mw-parser-output .hlist li:after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child:after,.mw-parser-output .hlist dt:last-child:after,.mw-parser-output .hlist li:last-child:after{content:none}.mw-parser-output .hlist dd dd:first-child:before,.mw-parser-output .hlist dd dt:first-child:before,.mw-parser-output .hlist dd li:first-child:before,.mw-parser-output .hlist dt dd:first-child:before,.mw-parser-output .hlist dt dt:first-child:before,.mw-parser-output .hlist dt li:first-child:before,.mw-parser-output .hlist li dd:first-child:before,.mw-parser-output .hlist li dt:first-child:before,.mw-parser-output .hlist li li:first-child:before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child:after,.mw-parser-output .hlist dd dt:last-child:after,.mw-parser-output .hlist dd li:last-child:after,.mw-parser-output .hlist dt dd:last-child:after,.mw-parser-output .hlist dt dt:last-child:after,.mw-parser-output .hlist dt li:last-child:after,.mw-parser-output .hlist li dd:last-child:after,.mw-parser-output .hlist li dt:last-child:after,.mw-parser-output .hlist li li:last-child:after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li:before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child:before,.mw-parser-output .hlist dt ol>li:first-child:before,.mw-parser-output .hlist li ol>li:first-child:before{content:" ("counter(listitem)"\a0 "}</style><style data-mw-deduplicate="TemplateStyles:r4692751">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar ul{display:inline;white-space:nowrap}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em;width:6em}</style><div class="plainlinks hlist navbar mini"><ul><li class="nv-view"><a href="/wiki/Template:Databases" title="Template:Databases"><abbr title="View this template" style=";;background:none transparent;border:none;box-shadow:none; padding:0;">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Databases" title="Template talk:Databases"><abbr title="Discuss this template" style=";;background:none transparent;border:none;box-shadow:none; padding:0;">t</abbr></a></li><li class="nv-edit"><a class="external text" href="https://www.mediawiki.org/w/index.php?title=Template:Databases&action=edit"><abbr title="Edit this template" style=";;background:none transparent;border:none;box-shadow:none; padding:0;">e</abbr></a></li></ul></div><div id="Databases" style="font-size:114%;margin:0 4em"><a href="/wiki/Special:MyLanguage/Manual:Database_layout" title="Special:MyLanguage/Manual:Database layout">Databases</a><span style="display:none"><a href="/wiki/Manual:Database_layout" title="Manual:Database layout"> </a></span></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%;white-space:inherit; min-width:9em">Engines</th><td class="navbox-list1 navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><div class="navbox-styles nomobile"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r6230902"></div></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Current</th><td class="navbox-list1 navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Special:MyLanguage/Manual:MariaDB" title="Special:MyLanguage/Manual:MariaDB">MariaDB</a><span style="display:none"><a href="/wiki/Manual:MariaDB" title="Manual:MariaDB"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Manual:MySQL" title="Special:MyLanguage/Manual:MySQL">MySQL</a><span style="display:none"><a href="/wiki/Manual:MySQL" title="Manual:MySQL"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Manual:PostgreSQL" title="Special:MyLanguage/Manual:PostgreSQL">PostgreSQL</a><span style="display:none"><a href="/wiki/Manual:PostgreSQL" title="Manual:PostgreSQL"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Manual:SQLite" title="Special:MyLanguage/Manual:SQLite">SQLite</a><span style="display:none"><a href="/wiki/Manual:SQLite" title="Manual:SQLite"> </a></span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Former</th><td class="navbox-list1 navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Special:MyLanguage/Manual:Oracle" title="Special:MyLanguage/Manual:Oracle">Oracle</a><span style="display:none"><a href="/wiki/Manual:Oracle" title="Manual:Oracle"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Manual:Microsoft_SQL_Server" title="Special:MyLanguage/Manual:Microsoft SQL Server">SQL Server</a><span style="display:none"><a href="/wiki/Manual:Microsoft_SQL_Server" title="Manual:Microsoft SQL Server"> </a></span></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;white-space:inherit; min-width:9em">Technical documentation</th><td class="navbox-list1 navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Special:MyLanguage/Manual:Database_layout" title="Special:MyLanguage/Manual:Database layout">Schema</a><span style="display:none"><a href="/wiki/Manual:Database_layout" title="Manual:Database layout"> </a></span> (<a href="/wiki/Special:MyLanguage/Category:MediaWiki_database_tables" title="Special:MyLanguage/Category:MediaWiki database tables">tables</a><span style="display:none"><a href="/wiki/Category:MediaWiki_database_tables" title="Category:MediaWiki database tables"> </a></span>)</li> <li><a href="/wiki/Special:MyLanguage/API:Database_field_and_API_property_associations" title="Special:MyLanguage/API:Database field and API property associations">API property associations</a><span style="display:none"><a href="/wiki/API:Database_field_and_API_property_associations" title="API:Database field and API property associations"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Database_field_prefixes" title="Special:MyLanguage/Database field prefixes">Field prefixes</a><span style="display:none"><a href="/wiki/Database_field_prefixes" title="Database field prefixes"> </a></span></li> <li><b><a href="/wiki/Special:MyLanguage/Manual:Primary_key_storage_in_other_fields" title="Special:MyLanguage/Manual:Primary key storage in other fields">Primary key storage in other fields</a></b><span style="display:none"><a class="mw-selflink selflink"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Category:Wikimedia_extension_database_tables" title="Special:MyLanguage/Category:Wikimedia extension database tables">Wikimedia extension tables</a><span style="display:none"><a href="/wiki/Category:Wikimedia_extension_database_tables" title="Category:Wikimedia extension database tables"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Manual:Database_inconsistencies" title="Special:MyLanguage/Manual:Database inconsistencies">Inconsistencies</a><span style="display:none"><a href="/wiki/Manual:Database_inconsistencies" title="Manual:Database inconsistencies"> </a></span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;white-space:inherit; min-width:9em">Configuration</th><td class="navbox-list1 navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Special:MyLanguage/Manual:Configuration_settings#Database_settings" title="Special:MyLanguage/Manual:Configuration settings">Settings</a><span style="display:none"><a href="/wiki/Manual:Configuration_settings#Database_settings" title="Manual:Configuration settings"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Manual:Shared_database" title="Special:MyLanguage/Manual:Shared database">Sharing</a><span style="display:none"><a href="/wiki/Manual:Shared_database" title="Manual:Shared database"> </a></span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;white-space:inherit; min-width:9em">Development</th><td class="navbox-list1 navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Special:MyLanguage/Manual:Database_access" title="Special:MyLanguage/Manual:Database access">Access</a><span style="display:none"><a href="/wiki/Manual:Database_access" title="Manual:Database access"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Database_optimization" title="Special:MyLanguage/Database optimization">Optimization</a><span style="display:none"><a href="/wiki/Database_optimization" title="Database optimization"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/MediaWiki_database_policy" title="Special:MyLanguage/MediaWiki database policy">Policy</a><span style="display:none"><a href="/wiki/MediaWiki_database_policy" title="MediaWiki database policy"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Manual:DatabaseUpdater.php" title="Special:MyLanguage/Manual:DatabaseUpdater.php">Updater</a><span style="display:none"><a href="/wiki/Manual:DatabaseUpdater.php" title="Manual:DatabaseUpdater.php"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Manual:Hooks/LoadExtensionSchemaUpdates" title="Special:MyLanguage/Manual:Hooks/LoadExtensionSchemaUpdates">Extension schema updates</a><span style="display:none"><a href="/wiki/Manual:Hooks/LoadExtensionSchemaUpdates" title="Manual:Hooks/LoadExtensionSchemaUpdates"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Manual:Schema_changes" title="Special:MyLanguage/Manual:Schema changes">Schema changes</a><span style="display:none"><a href="/wiki/Manual:Schema_changes" title="Manual:Schema changes"> </a></span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;white-space:inherit; min-width:9em">Core tables</th><td class="navbox-list1 navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><div class="navbox-styles nomobile"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r6230902"></div></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Current</th><td class="navbox-list1 navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Special:MyLanguage/Manual:actor_table" title="Special:MyLanguage/Manual:actor table">actor</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:archive_table" title="Special:MyLanguage/Manual:archive table">archive</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:block_table" title="Special:MyLanguage/Manual:block table">block</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:block_target_table" title="Special:MyLanguage/Manual:block target table">block_target</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:bot_passwords_table" title="Special:MyLanguage/Manual:bot passwords table">bot_passwords</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:category_table" title="Special:MyLanguage/Manual:category table">category</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:categorylinks_table" title="Special:MyLanguage/Manual:categorylinks table">categorylinks</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:change_tag_table" title="Special:MyLanguage/Manual:change tag table">change_tag</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:change_tag_def_table" title="Special:MyLanguage/Manual:change tag def table">change_tag_def</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:comment_table" title="Special:MyLanguage/Manual:comment table">comment</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:content_table" title="Special:MyLanguage/Manual:content table">content</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:content_models_table" title="Special:MyLanguage/Manual:content models table">content_models</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:externallinks_table" title="Special:MyLanguage/Manual:externallinks table">externallinks</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:filearchive_table" title="Special:MyLanguage/Manual:filearchive table">filearchive</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:image_table" title="Special:MyLanguage/Manual:image table">image</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:imagelinks_table" title="Special:MyLanguage/Manual:imagelinks table">imagelinks</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:interwiki_table" title="Special:MyLanguage/Manual:interwiki table">interwiki</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:iwlinks_table" title="Special:MyLanguage/Manual:iwlinks table">iwlinks</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:ipblocks_table" title="Special:MyLanguage/Manual:ipblocks table">ipblocks</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:ipblocks_restrictions_table" title="Special:MyLanguage/Manual:ipblocks restrictions table">ipblocks_restrictions</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:ip_changes_table" title="Special:MyLanguage/Manual:ip changes table">ip_changes</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:job_table" title="Special:MyLanguage/Manual:job table">job</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:l10n_cache_table" title="Special:MyLanguage/Manual:l10n cache table">l10n_cache</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:langlinks_table" title="Special:MyLanguage/Manual:langlinks table">langlinks</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:linktarget_table" title="Special:MyLanguage/Manual:linktarget table">linktarget</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:logging_table" title="Special:MyLanguage/Manual:logging table">logging</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:log_search_table" title="Special:MyLanguage/Manual:log search table">log_search</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:module_deps_table" title="Special:MyLanguage/Manual:module deps table">module_deps</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:objectcache_table" title="Special:MyLanguage/Manual:objectcache table">objectcache</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:oldimage_table" title="Special:MyLanguage/Manual:oldimage table">oldimage</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:page_table" title="Special:MyLanguage/Manual:page table">page</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:pagelinks_table" title="Special:MyLanguage/Manual:pagelinks table">pagelinks</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:page_props_table" title="Special:MyLanguage/Manual:page props table">page_props</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:page_restrictions_table" title="Special:MyLanguage/Manual:page restrictions table">page_restrictions</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:protected_titles_table" title="Special:MyLanguage/Manual:protected titles table">protected_titles</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:querycache_table" title="Special:MyLanguage/Manual:querycache table">querycache</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:querycachetwo_table" title="Special:MyLanguage/Manual:querycachetwo table">querycachetwo</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:querycache_info_table" title="Special:MyLanguage/Manual:querycache info table">querycache_info</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:recentchanges_table" title="Special:MyLanguage/Manual:recentchanges table">recentchanges</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:redirect_table" title="Special:MyLanguage/Manual:redirect table">redirect</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:revision_table" title="Special:MyLanguage/Manual:revision table">revision</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:searchindex_table" title="Special:MyLanguage/Manual:searchindex table">searchindex</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:sites_table" title="Special:MyLanguage/Manual:sites table">sites</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:site_identifiers_table" title="Special:MyLanguage/Manual:site identifiers table">site_identifiers</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:site_stats_table" title="Special:MyLanguage/Manual:site stats table">site_stats</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:slots_table" title="Special:MyLanguage/Manual:slots table">slots</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:slot_roles_table" title="Special:MyLanguage/Manual:slot roles table">slot_roles</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:templatelinks_table" title="Special:MyLanguage/Manual:templatelinks table">templatelinks</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:text_table" title="Special:MyLanguage/Manual:text table">text</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:updatelog_table" title="Special:MyLanguage/Manual:updatelog table">updatelog</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:uploadstash_table" title="Special:MyLanguage/Manual:uploadstash table">uploadstash</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:user_table" title="Special:MyLanguage/Manual:user table">user</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:user_autocreate_serial_table" title="Special:MyLanguage/Manual:user autocreate serial table">user_autocreate_serial</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:user_former_groups_table" title="Special:MyLanguage/Manual:user former groups table">user_former_groups</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:user_groups_table" title="Special:MyLanguage/Manual:user groups table">user_groups</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:user_newtalk_table" title="Special:MyLanguage/Manual:user newtalk table">user_newtalk</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:user_properties_table" title="Special:MyLanguage/Manual:user properties table">user_properties</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:watchlist_table" title="Special:MyLanguage/Manual:watchlist table">watchlist</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:watchlist_expiry_table" title="Special:MyLanguage/Manual:watchlist expiry table">watchlist_expiry</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Former</th><td class="navbox-list1 navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Special:MyLanguage/Manual:blobs_table" title="Special:MyLanguage/Manual:blobs table">blobs</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:brokenlinks_table" title="Special:MyLanguage/Manual:brokenlinks table">brokenlinks</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:config_table" title="Special:MyLanguage/Manual:config table">config</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:cur_table" title="Special:MyLanguage/Manual:cur table">cur</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:external_user_table" title="Special:MyLanguage/Manual:external user table">external_user</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:hitcounter_table" title="Special:MyLanguage/Manual:hitcounter table">hitcounter</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:image_comment_temp_table" title="Special:MyLanguage/Manual:image comment temp table">image_comment_temp</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:ipblocks_old_table" title="Special:MyLanguage/Manual:ipblocks old table">ipblocks_old</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:links_table" title="Special:MyLanguage/Manual:links table">links</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:linkscc_table" title="Special:MyLanguage/Manual:linkscc table">linkscc</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:math_table" title="Special:MyLanguage/Manual:math table">math</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:msg_resource_table" title="Special:MyLanguage/Manual:msg resource table">msg_resource</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:msg_resource_links_table" title="Special:MyLanguage/Manual:msg resource links table">msg_resource_links</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:old_table" title="Special:MyLanguage/Manual:old table">old</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:profiling_table" title="Special:MyLanguage/Manual:profiling table">profiling</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:revision_actor_temp_table" title="Special:MyLanguage/Manual:revision actor temp table">revision_actor_temp</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:revision_comment_temp_table" title="Special:MyLanguage/Manual:revision comment temp table">revision_comment_temp</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:tag_summary_table" title="Special:MyLanguage/Manual:tag summary table">tag_summary</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:trackbacks_table" title="Special:MyLanguage/Manual:trackbacks table">trackbacks</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:transcache_table" title="Special:MyLanguage/Manual:transcache table">transcache</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:user_rights_table" title="Special:MyLanguage/Manual:user rights table">user_rights</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:valid_tag_table" title="Special:MyLanguage/Manual:valid tag table">valid_tag</a></li> <li><a href="/wiki/Special:MyLanguage/Manual:validate_table" title="Special:MyLanguage/Manual:validate table">validate</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" 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