Merge "rdbms: add SHOW to isTransactableQuery() and add QUERY_IGNORE_DBO_TRX uses"

diff --combined includes/libs/rdbms/database/Database.php
index 9cdbc9c,2c319ea..dfad922
--- 1/includes/libs/rdbms/database/Database.php
--- 2/includes/libs/rdbms/database/Database.php
+++ b/includes/libs/rdbms/database/Database.php
@@@ -1068,7 -1068,7 +1068,7 @@@ abstract class Database implements IDat
        protected function isTransactableQuery( $sql ) {
                return !in_array(
                        $this->getQueryVerb( $sql ),
-                       [ 'BEGIN', 'ROLLBACK', 'COMMIT', 'SET', 'SHOW', 'CREATE', 'ALTER', 'USE' ],
+                       [ 'BEGIN', 'ROLLBACK', 'COMMIT', 'SET', 'SHOW', 'CREATE', 'ALTER', 'USE', 'SHOW' ],
                        true
                );
        }
@@@ -3626,7 -3626,7 +3626,7 @@@
         * Actually run any "atomic section cancel" callbacks.
         *
         * @param int $trigger IDatabase::TRIGGER_* constant
 -       * @param AtomicSectionIdentifier[]|null $sectionId Section IDs to cancel,
 +       * @param AtomicSectionIdentifier[]|null $sectionIds Section IDs to cancel,
         *  null on transaction rollback
         */
        private function runOnAtomicSectionCancelCallbacks(