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add combined index for item.uid and item.item_unseen. this speeds up notifications by a magnitude.

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This commit is contained in:
Mario Vavti
2017-09-01 21:27:59 +02:00
parent 3af3b36db3
commit e935473c5c
7 changed files with 27 additions and 11 deletions
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5
install/schema_mysql.sql
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@@ -650,8 +650,9 @@ CREATE TABLE IF NOT EXISTS `item` (
KEY `created` (`created`),
KEY `edited` (`edited`),
KEY `received` (`received`),
KEY `uid_commented` (`uid`,`commented`),
KEY `uid_created` (`uid`,`created`),
KEY `uid_commented` (`uid`, `commented`),
KEY `uid_created` (`uid`, `created`),
KEY `uid_item_unseen` (`uid`, `item_unseen`);
KEY `aid` (`aid`),
KEY `owner_xchan` (`owner_xchan`),
KEY `author_xchan` (`author_xchan`),

1
install/schema_postgres.sql
View File

@@ -621,6 +621,7 @@ create index "item_edited" on item ("edited");
create index "item_received" on item ("received");
create index "item_uid_commented" on item ("uid","commented");
create index "item_uid_created" on item ("uid","created");
create index "item_uid_unseen" on item ("uid","item_unseen");
create index "item_changed" on item ("changed");
create index "item_comments_closed" on item ("comments_closed");
create index "item_aid" on item ("aid");

16
install/update.php
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@@ -1,6 +1,6 @@
<?php
define( 'UPDATE_VERSION' , 1193 );
define( 'UPDATE_VERSION' , 1194 );
/**
*
@@ -2978,3 +2978,17 @@ function update_r1192() {
return UPDATE_SUCCESS;
return UPDATE_FAILED;
}
function update_r1193() {
if(ACTIVE_DBTYPE == DBTYPE_POSTGRES) {
$r1 = q("CREATE INDEX item_uid_unseen ON item (uid, item_unseen)");
}
else {
$r1 = q("ALTER TABLE item ADD INDEX uid_item_unseen (uid, item_unseen);");
}
if($r1)
return UPDATE_SUCCESS;
return UPDATE_FAILED;
}