Disallow subtraction on unsigned columns:

[mailer.git] / inc / db / lib-mysqli.php

diff --git a/inc/db/lib-mysqli.php b/inc/db/lib-mysqli.php
index 27798e9bb278d18d779545955df0261cf1261b95..9a1be873010ff6d78a9cef318bfa8739c8d03437 100644 (file)
--- a/inc/db/lib-mysqli.php
+++ b/inc/db/lib-mysqli.php
@@ -218,6 +218,9 @@ function sqlConnectToDatabase ($host, $login, $password, $file, $line) {
        `character_set_connection`='utf8',
        `character_set_database`='utf8',
        `character_set_server`='utf8'", $file . ':' . __FUNCTION__, $line . ':' . __LINE__);
+
+               // Disallow subtraction for unsigned columns
+               sqlQuery("SET `sql_mode`='NO_UNSIGNED_SUBTRACTION'", $file . ':' . __FUNCTION__, $line . ':' . __LINE__);
        } // END - if
 
        // Any errors encountered?