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Merge "Avoid master queries when old filter checks are viewed"
author
jenkins-bot
<jenkins-bot@gerrit.wikimedia.org>
Thu, 26 Jan 2017 17:46:24 +0000
(17:46 +0000)
committer
Gerrit Code Review
<gerrit@wikimedia.org>
Thu, 26 Jan 2017 17:46:24 +0000
(17:46 +0000)
includes/page/WikiPage.php
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diff --git
a/includes/page/WikiPage.php
b/includes/page/WikiPage.php
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f760cd1
..
ab95eea
100644
(file)
--- a/
includes/page/WikiPage.php
+++ b/
includes/page/WikiPage.php
@@
-2088,8
+2088,12
@@
class WikiPage implements Page, IDBAccessObject {
);
} else {
// Try to avoid a second parse if {{REVISIONID}} is used
- $edit->popts->setSpeculativeRevIdCallback( function () {
- return 1 + (int)wfGetDB( DB_MASTER )->selectField(
+ $dbIndex = ( $this->mDataLoadedFrom & self::READ_LATEST ) === self::READ_LATEST
+ ? DB_MASTER // use the best possible guess
+ : DB_REPLICA; // T154554
+
+ $edit->popts->setSpeculativeRevIdCallback( function () use ( $dbIndex ) {
+ return 1 + (int)wfGetDB( $dbIndex )->selectField(
'revision',
'MAX(rev_id)',
[],