Merge "rdbms: make LBFactory "cliMode" check for phpdbg"

[lhc/web/wiklou.git] / includes / libs / rdbms / loadbalancer / ILoadBalancer.php

diff --git a/includes/libs/rdbms/loadbalancer/ILoadBalancer.php b/includes/libs/rdbms/loadbalancer/ILoadBalancer.php
index 8210507..715f4e4 100644 (file)
--- a/includes/libs/rdbms/loadbalancer/ILoadBalancer.php
+++ b/includes/libs/rdbms/loadbalancer/ILoadBalancer.php
@@ -109,6 +109,7 @@ interface ILoadBalancer {
         *  - queryLogger: PSR-3 logger instance. [optional]
         *  - perfLogger: PSR-3 logger instance. [optional]
         *  - errorLogger : Callback that takes an Exception and logs it. [optional]
+        *  - deprecationLogger: Callback to log a deprecation warning. [optional]
         * @throws InvalidArgumentException
         */
        public function __construct( array $params );
@@ -615,4 +616,19 @@ interface ILoadBalancer {
         * @param array[] $aliases Map of (table => (dbname, schema, prefix) map)
         */
        public function setTableAliases( array $aliases );
+
+       /**
+        * Convert certain index names to alternative names before querying the DB
+        *
+        * Note that this applies to indexes regardless of the table they belong to.
+        *
+        * This can be employed when an index was renamed X => Y in code, but the new Y-named
+        * indexes were not yet built on all DBs. After all the Y-named ones are added by the DBA,
+        * the aliases can be removed, and then the old X-named indexes dropped.
+        *
+        * @param string[] $aliases
+        * @return mixed
+        * @since 1.31
+        */
+       public function setIndexAliases( array $aliases );
 }