MDL-51245 mssql: Diagnose missing READ_COMMITTED_SNAPSHOT mode
commit0e5bcf0a0b1118ab208f026eed7478e96ae65e6a
authorEloy Lafuente (stronk7) <stronk7@moodle.org>
Fri, 4 Sep 2015 00:05:29 +0000 (4 02:05 +0200)
committerEloy Lafuente (stronk7) <stronk7@moodle.org>
Tue, 8 Sep 2015 00:59:50 +0000 (8 02:59 +0200)
tree83440d38dab1a9639d726a193af6aa54fdbcb709
parenta332c3c4e88a8dbf86edf87aaa899c783d3c9c14
MDL-51245 mssql: Diagnose missing READ_COMMITTED_SNAPSHOT mode

Without it, transactions are executed in standard READ_COMMITED
mode, without snapshoting/row versioning, leading to update conflicts
under high concurrency.
lang/en/error.php
lib/dml/mssql_native_moodle_database.php