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wiki.techinc.nl/maintenance/abstractSchemaChanges/patch-recentchanges-rc_id-bigint.json
Alexander Vorwerk 28bdd790ee Make rc_id a bigint 
Wikidata is at 51.3% of its maximum value (see [1]), so we still have
comfortable time to make this change, but it will inevitably be
necessary and there is no point in postponing this change into the
future. The autoincrement value will not get smaller. ¯\_(ツ)_/¯

Also since rc only stores stuff for 30 days, the table is not that
big.

[1] - https://grafana.wikimedia.org/d/79S1Hq9Mz/wikidata-reliability-metrics?viewPanel=29&orgId=1

Bug: T63111
Change-Id: Icf3dc9815814ef73aa6a39f1c221a349e6b76872
2024-05-04 21:14:51 +02:00

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{
"before": {
"name": "recentchanges",
"comment": "Primarily a summary table for Special:RecentChanges, this table contains some additional info on edits from the last few days",
"columns": [
{
"name": "rc_id",
"type": "integer",
"options": {
"autoincrement": true,
"unsigned": true,
"notnull": true
}
},
{
"name": "rc_timestamp",
"type": "mwtimestamp",
"options": {
"notnull": true
}
},
{
"name": "rc_actor",
"comment": "As in revision",
"type": "bigint",
"options": {
"unsigned": true,
"notnull": true
}
},
{
"name": "rc_namespace",
"comment": "When pages are renamed, their RC entries do _not_ change.",
"type": "integer",
"options": {
"notnull": true,
"default": 0
}
},
{
"name": "rc_title",
"type": "binary",
"options": {
"notnull": true,
"default": "",
"length": 255
}
},
{
"name": "rc_comment_id",
"comment": "as in revision...",
"type": "bigint",
"options": {
"unsigned": true,
"notnull": true
}
},
{
"name": "rc_minor",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_bot",
"comment": "Edits by user accounts with the 'bot' rights key are marked with a 1 here, and will be hidden from the default view.",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_new",
"comment": "Set if this change corresponds to a page creation",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_cur_id",
"comment": "Key to page_id (was cur_id prior to 1.5). This will keep links working after moves while retaining the at-the-time name in the changes list.",
"type": "integer",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_this_oldid",
"comment": "rev_id of the given revision",
"type": "integer",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_last_oldid",
"comment": "rev_id of the prior revision, for generating diff links.",
"type": "integer",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_type",
"comment": "The type of change entry (RC_EDIT,RC_NEW,RC_LOG,RC_EXTERNAL)",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_source",
"comment": "The source of the change entry (replaces rc_type) default of '' is temporary, needed for initial migration",
"type": "binary",
"options": {
"notnull": true,
"default": "",
"length": 16
}
},
{
"name": "rc_patrolled",
"comment": "If the Recent Changes Patrol option is enabled, users may mark edits as having been reviewed to remove a warning flag on the RC list. A value of 1 indicates the page has been reviewed.",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_ip",
"comment": "Recorded IP address the edit was made from, if the $wgPutIPinRC option is enabled.",
"type": "binary",
"options": {
"notnull": true,
"default": "",
"length": 40
}
},
{
"name": "rc_old_len",
"comment": "Text length in characters before the edit",
"type": "integer",
"options": {
"notnull": false
}
},
{
"name": "rc_new_len",
"comment": "Text length in characters after the edit",
"type": "integer",
"options": {
"notnull": false
}
},
{
"name": "rc_deleted",
"comment": "Visibility of recent changes items, bitfield",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_logid",
"comment": "Value corresponding to log_id, specific log entries",
"type": "integer",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_log_type",
"comment": "Store log type info here, or null",
"type": "binary",
"options": {
"notnull": false,
"default": null,
"length": 255
}
},
{
"name": "rc_log_action",
"comment": "Store log action or null",
"type": "binary",
"options": {
"notnull": false,
"default": null,
"length": 255
}
},
{
"name": "rc_params",
"comment": "Log params",
"type": "blob",
"options": {
"notnull": false,
"length": 65535
}
}
],
"indexes": [
{
"name": "rc_timestamp",
"comment": "Special:Recentchanges",
"columns": [
"rc_timestamp"
],
"unique": false
},
{
"name": "rc_namespace_title_timestamp",
"comment": "Special:Watchlist",
"columns": [
"rc_namespace",
"rc_title",
"rc_timestamp"
],
"unique": false
},
{
"name": "rc_cur_id",
"comment": "Special:Recentchangeslinked when finding changes in pages linked from a page",
"columns": [
"rc_cur_id"
],
"unique": false
},
{
"name": "rc_new_name_timestamp",
"comment": "Special:Newpages",
"columns": [
"rc_new",
"rc_namespace",
"rc_timestamp"
],
"unique": false
},
{
"name": "rc_ip",
"comment": "Blank unless $wgPutIPinRC=true (false at WMF), possibly used by extensions, but mostly replaced by CheckUser.",
"columns": [
"rc_ip"
],
"unique": false
},
{
"name": "rc_ns_actor",
"comment": "Probably intended for Special:NewPages namespace filter",
"columns": [
"rc_namespace",
"rc_actor"
],
"unique": false
},
{
"name": "rc_actor",
"comment": "SiteStats active user count, Special:ActiveUsers, Special:NewPages user filter",
"columns": [
"rc_actor",
"rc_timestamp"
],
"unique": false
},
{
"name": "rc_name_type_patrolled_timestamp",
"comment": "ApiQueryRecentChanges (T140108)",
"columns": [
"rc_namespace",
"rc_type",
"rc_patrolled",
"rc_timestamp"
],
"unique": false
},
{
"name": "rc_this_oldid",
"comment": "Article.php and friends (T139012)",
"columns": [
"rc_this_oldid"
],
"unique": false
}
],
"pk": [
"rc_id"
]
},
"after": {
"name": "recentchanges",
"comment": "Primarily a summary table for Special:RecentChanges, this table contains some additional info on edits from the last few days",
"columns": [
{
"name": "rc_id",
"type": "bigint",
"options": {
"autoincrement": true,
"unsigned": true,
"notnull": true
}
},
{
"name": "rc_timestamp",
"type": "mwtimestamp",
"options": {
"notnull": true
}
},
{
"name": "rc_actor",
"comment": "As in revision",
"type": "bigint",
"options": {
"unsigned": true,
"notnull": true
}
},
{
"name": "rc_namespace",
"comment": "When pages are renamed, their RC entries do _not_ change.",
"type": "integer",
"options": {
"notnull": true,
"default": 0
}
},
{
"name": "rc_title",
"type": "binary",
"options": {
"notnull": true,
"default": "",
"length": 255
}
},
{
"name": "rc_comment_id",
"comment": "as in revision...",
"type": "bigint",
"options": {
"unsigned": true,
"notnull": true
}
},
{
"name": "rc_minor",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_bot",
"comment": "Edits by user accounts with the 'bot' rights key are marked with a 1 here, and will be hidden from the default view.",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_new",
"comment": "Set if this change corresponds to a page creation",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_cur_id",
"comment": "Key to page_id (was cur_id prior to 1.5). This will keep links working after moves while retaining the at-the-time name in the changes list.",
"type": "integer",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_this_oldid",
"comment": "rev_id of the given revision",
"type": "integer",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_last_oldid",
"comment": "rev_id of the prior revision, for generating diff links.",
"type": "integer",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_type",
"comment": "The type of change entry (RC_EDIT,RC_NEW,RC_LOG,RC_EXTERNAL)",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_source",
"comment": "The source of the change entry (replaces rc_type) default of '' is temporary, needed for initial migration",
"type": "binary",
"options": {
"notnull": true,
"default": "",
"length": 16
}
},
{
"name": "rc_patrolled",
"comment": "If the Recent Changes Patrol option is enabled, users may mark edits as having been reviewed to remove a warning flag on the RC list. A value of 1 indicates the page has been reviewed.",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_ip",
"comment": "Recorded IP address the edit was made from, if the $wgPutIPinRC option is enabled.",
"type": "binary",
"options": {
"notnull": true,
"default": "",
"length": 40
}
},
{
"name": "rc_old_len",
"comment": "Text length in characters before the edit",
"type": "integer",
"options": {
"notnull": false
}
},
{
"name": "rc_new_len",
"comment": "Text length in characters after the edit",
"type": "integer",
"options": {
"notnull": false
}
},
{
"name": "rc_deleted",
"comment": "Visibility of recent changes items, bitfield",
"type": "mwtinyint",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_logid",
"comment": "Value corresponding to log_id, specific log entries",
"type": "integer",
"options": {
"unsigned": true,
"notnull": true,
"default": 0
}
},
{
"name": "rc_log_type",
"comment": "Store log type info here, or null",
"type": "binary",
"options": {
"notnull": false,
"default": null,
"length": 255
}
},
{
"name": "rc_log_action",
"comment": "Store log action or null",
"type": "binary",
"options": {
"notnull": false,
"default": null,
"length": 255
}
},
{
"name": "rc_params",
"comment": "Log params",
"type": "blob",
"options": {
"notnull": false,
"length": 65535
}
}
],
"indexes": [
{
"name": "rc_timestamp",
"comment": "Special:Recentchanges",
"columns": [
"rc_timestamp"
],
"unique": false
},
{
"name": "rc_namespace_title_timestamp",
"comment": "Special:Watchlist",
"columns": [
"rc_namespace",
"rc_title",
"rc_timestamp"
],
"unique": false
},
{
"name": "rc_cur_id",
"comment": "Special:Recentchangeslinked when finding changes in pages linked from a page",
"columns": [
"rc_cur_id"
],
"unique": false
},
{
"name": "rc_new_name_timestamp",
"comment": "Special:Newpages",
"columns": [
"rc_new",
"rc_namespace",
"rc_timestamp"
],
"unique": false
},
{
"name": "rc_ip",
"comment": "Blank unless $wgPutIPinRC=true (false at WMF), possibly used by extensions, but mostly replaced by CheckUser.",
"columns": [
"rc_ip"
],
"unique": false
},
{
"name": "rc_ns_actor",
"comment": "Probably intended for Special:NewPages namespace filter",
"columns": [
"rc_namespace",
"rc_actor"
],
"unique": false
},
{
"name": "rc_actor",
"comment": "SiteStats active user count, Special:ActiveUsers, Special:NewPages user filter",
"columns": [
"rc_actor",
"rc_timestamp"
],
"unique": false
},
{
"name": "rc_name_type_patrolled_timestamp",
"comment": "ApiQueryRecentChanges (T140108)",
"columns": [
"rc_namespace",
"rc_type",
"rc_patrolled",
"rc_timestamp"
],
"unique": false
},
{
"name": "rc_this_oldid",
"comment": "Article.php and friends (T139012)",
"columns": [
"rc_this_oldid"
],
"unique": false
}
],
"pk": [
"rc_id"
]
}
}
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