Drop duplicate database indexes

These duplicate indexes were found by the pt-duplicate-key-checker
tool in percona-toolkit.  Duplicate indexes waste space and slow down
the query planner.  Closes #835.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
This commit is contained in:
Anders Kaseorg 2014-12-18 02:18:17 -05:00
parent d8895ec679
commit bd40827b73
5 changed files with 31 additions and 20 deletions

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@ -1,6 +1,6 @@
<?php <?php
define('EXPECTED_CONFIG_VERSION', 26); define('EXPECTED_CONFIG_VERSION', 26);
define('SCHEMA_VERSION', 126); define('SCHEMA_VERSION', 127);
define('LABEL_BASE_INDEX', -1024); define('LABEL_BASE_INDEX', -1024);
define('PLUGIN_FEED_BASE_INDEX', -128); define('PLUGIN_FEED_BASE_INDEX', -128);

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@ -133,9 +133,7 @@ create table ttrss_feeds (id integer not null auto_increment primary key,
view_settings varchar(250) not null default '', view_settings varchar(250) not null default '',
pubsub_state integer not null default 0, pubsub_state integer not null default 0,
favicon_last_checked datetime default null, favicon_last_checked datetime default null,
index(owner_uid),
foreign key (owner_uid) references ttrss_users(id) ON DELETE CASCADE, foreign key (owner_uid) references ttrss_users(id) ON DELETE CASCADE,
index(cat_id),
foreign key (cat_id) references ttrss_feed_categories(id) ON DELETE SET NULL, foreign key (cat_id) references ttrss_feed_categories(id) ON DELETE SET NULL,
index(parent_feed), index(parent_feed),
foreign key (parent_feed) references ttrss_feeds(id) ON DELETE SET NULL) ENGINE=InnoDB DEFAULT CHARSET=UTF8; foreign key (parent_feed) references ttrss_feeds(id) ON DELETE SET NULL) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
@ -167,7 +165,6 @@ create table ttrss_entries (id integer not null primary key auto_increment,
author varchar(250) not null default '') ENGINE=InnoDB DEFAULT CHARSET=UTF8; author varchar(250) not null default '') ENGINE=InnoDB DEFAULT CHARSET=UTF8;
create index ttrss_entries_date_entered_index on ttrss_entries(date_entered); create index ttrss_entries_date_entered_index on ttrss_entries(date_entered);
create index ttrss_entries_guid_index on ttrss_entries(guid);
create index ttrss_entries_updated_idx on ttrss_entries(updated); create index ttrss_entries_updated_idx on ttrss_entries(updated);
create table ttrss_user_entries ( create table ttrss_user_entries (
@ -187,13 +184,10 @@ create table ttrss_user_entries (
last_marked datetime, last_marked datetime,
last_published datetime, last_published datetime,
unread bool not null default 1, unread bool not null default 1,
index (ref_id),
foreign key (ref_id) references ttrss_entries(id) ON DELETE CASCADE, foreign key (ref_id) references ttrss_entries(id) ON DELETE CASCADE,
index (feed_id),
foreign key (feed_id) references ttrss_feeds(id) ON DELETE CASCADE, foreign key (feed_id) references ttrss_feeds(id) ON DELETE CASCADE,
index (orig_feed_id), index (orig_feed_id),
foreign key (orig_feed_id) references ttrss_archived_feeds(id) ON DELETE SET NULL, foreign key (orig_feed_id) references ttrss_archived_feeds(id) ON DELETE SET NULL,
index (owner_uid),
foreign key (owner_uid) references ttrss_users(id) ON DELETE CASCADE) ENGINE=InnoDB DEFAULT CHARSET=UTF8; foreign key (owner_uid) references ttrss_users(id) ON DELETE CASCADE) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
create index ttrss_user_entries_owner_uid_index on ttrss_user_entries(owner_uid); create index ttrss_user_entries_owner_uid_index on ttrss_user_entries(owner_uid);
@ -301,7 +295,7 @@ create table ttrss_tags (id integer primary key auto_increment,
create table ttrss_version (schema_version int not null) ENGINE=InnoDB DEFAULT CHARSET=UTF8; create table ttrss_version (schema_version int not null) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
insert into ttrss_version values (126); insert into ttrss_version values (127);
create table ttrss_enclosures (id integer primary key auto_increment, create table ttrss_enclosures (id integer primary key auto_increment,
content_url text not null, content_url text not null,
@ -311,7 +305,6 @@ create table ttrss_enclosures (id integer primary key auto_increment,
duration text not null, duration text not null,
width integer not null default 0, width integer not null default 0,
height integer not null default 0, height integer not null default 0,
index (post_id),
foreign key (post_id) references ttrss_entries(id) ON DELETE cascade) ENGINE=InnoDB DEFAULT CHARSET=UTF8; foreign key (post_id) references ttrss_entries(id) ON DELETE cascade) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
create index ttrss_enclosures_post_id_idx on ttrss_enclosures(post_id); create index ttrss_enclosures_post_id_idx on ttrss_enclosures(post_id);
@ -347,8 +340,6 @@ create table ttrss_prefs (pref_name varchar(250) not null primary key,
index(section_id), index(section_id),
foreign key (section_id) references ttrss_prefs_sections(id)) ENGINE=InnoDB DEFAULT CHARSET=UTF8; foreign key (section_id) references ttrss_prefs_sections(id)) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
create index ttrss_prefs_pref_name_idx on ttrss_prefs(pref_name);
insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('PURGE_OLD_DAYS', 3, '60', 1); insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('PURGE_OLD_DAYS', 3, '60', 1);
insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('DEFAULT_UPDATE_INTERVAL', 3, '30', 1); insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('DEFAULT_UPDATE_INTERVAL', 3, '30', 1);
insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('DEFAULT_ARTICLE_LIMIT', 3, '30', 2); insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('DEFAULT_ARTICLE_LIMIT', 3, '30', 2);
@ -418,18 +409,15 @@ create table ttrss_user_prefs (
profile integer, profile integer,
index (profile), index (profile),
foreign key (profile) references ttrss_settings_profiles(id) ON DELETE CASCADE, foreign key (profile) references ttrss_settings_profiles(id) ON DELETE CASCADE,
index (owner_uid),
foreign key (owner_uid) references ttrss_users(id) ON DELETE CASCADE, foreign key (owner_uid) references ttrss_users(id) ON DELETE CASCADE,
index (pref_name),
foreign key (pref_name) references ttrss_prefs(pref_name) ON DELETE CASCADE) ENGINE=InnoDB DEFAULT CHARSET=UTF8; foreign key (pref_name) references ttrss_prefs(pref_name) ON DELETE CASCADE) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
create index ttrss_user_prefs_owner_uid_index on ttrss_user_prefs(owner_uid); create index ttrss_user_prefs_owner_uid_index on ttrss_user_prefs(owner_uid);
create index ttrss_user_prefs_pref_name_idx on ttrss_user_prefs(pref_name); create index ttrss_user_prefs_pref_name_idx on ttrss_user_prefs(pref_name);
create table ttrss_sessions (id varchar(250) unique not null primary key, create table ttrss_sessions (id varchar(250) not null primary key,
data text, data text,
expire integer not null, expire integer not null,
index (id),
index (expire)) ENGINE=InnoDB DEFAULT CHARSET=UTF8; index (expire)) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
create table ttrss_feedbrowser_cache ( create table ttrss_feedbrowser_cache (

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@ -148,7 +148,6 @@ create table ttrss_entries (id serial not null primary key,
lang varchar(2), lang varchar(2),
author varchar(250) not null default ''); author varchar(250) not null default '');
create index ttrss_entries_guid_index on ttrss_entries(guid);
-- create index ttrss_entries_title_index on ttrss_entries(title); -- create index ttrss_entries_title_index on ttrss_entries(title);
create index ttrss_entries_date_entered_index on ttrss_entries(date_entered); create index ttrss_entries_date_entered_index on ttrss_entries(date_entered);
create index ttrss_entries_updated_idx on ttrss_entries(updated); create index ttrss_entries_updated_idx on ttrss_entries(updated);
@ -261,7 +260,7 @@ create index ttrss_tags_post_int_id_idx on ttrss_tags(post_int_id);
create table ttrss_version (schema_version int not null); create table ttrss_version (schema_version int not null);
insert into ttrss_version values (126); insert into ttrss_version values (127);
create table ttrss_enclosures (id serial not null primary key, create table ttrss_enclosures (id serial not null primary key,
content_url text not null, content_url text not null,
@ -300,8 +299,6 @@ create table ttrss_prefs (pref_name varchar(250) not null primary key,
access_level integer not null default 0, access_level integer not null default 0,
def_value text not null); def_value text not null);
create index ttrss_prefs_pref_name_idx on ttrss_prefs(pref_name);
insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('PURGE_OLD_DAYS', 3, '60', 1); insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('PURGE_OLD_DAYS', 3, '60', 1);
insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('DEFAULT_UPDATE_INTERVAL', 3, '30', 1); insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('DEFAULT_UPDATE_INTERVAL', 3, '30', 1);
insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('DEFAULT_ARTICLE_LIMIT', 3, '30', 2); insert into ttrss_prefs (pref_name,type_id,def_value,section_id) values('DEFAULT_ARTICLE_LIMIT', 3, '30', 2);
@ -374,7 +371,7 @@ create index ttrss_user_prefs_owner_uid_index on ttrss_user_prefs(owner_uid);
create index ttrss_user_prefs_pref_name_idx on ttrss_user_prefs(pref_name); create index ttrss_user_prefs_pref_name_idx on ttrss_user_prefs(pref_name);
-- create index ttrss_user_prefs_value_index on ttrss_user_prefs(value); -- create index ttrss_user_prefs_value_index on ttrss_user_prefs(value);
create table ttrss_sessions (id varchar(250) unique not null primary key, create table ttrss_sessions (id varchar(250) not null primary key,
data text, data text,
expire integer not null); expire integer not null);

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@ -0,0 +1,18 @@
BEGIN;
ALTER TABLE ttrss_enclosures DROP INDEX post_id;
ALTER TABLE ttrss_entries DROP INDEX ttrss_entries_guid_index;
ALTER TABLE ttrss_feeds DROP INDEX owner_uid;
ALTER TABLE ttrss_feeds DROP INDEX cat_id;
ALTER TABLE ttrss_prefs DROP INDEX ttrss_prefs_pref_name_idx;
ALTER TABLE ttrss_sessions DROP INDEX id_2;
ALTER TABLE ttrss_sessions DROP INDEX id;
ALTER TABLE ttrss_user_entries DROP INDEX ref_id;
ALTER TABLE ttrss_user_entries DROP INDEX owner_uid;
ALTER TABLE ttrss_user_entries DROP INDEX feed_id;
ALTER TABLE ttrss_user_prefs DROP INDEX pref_name;
ALTER TABLE ttrss_user_prefs DROP INDEX owner_uid;
UPDATE ttrss_version SET schema_version = 127;
COMMIT;

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@ -0,0 +1,8 @@
BEGIN;
DROP INDEX ttrss_entries_guid_index;
DROP INDEX ttrss_prefs_pref_name_idx;
UPDATE ttrss_version SET schema_version = 127;
COMMIT;