Fix #4401
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index df0ce6a..bad641d 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -1566,11 +1566,11 @@
'\s*>\s*', // >
'\s+IS NULL', // IS NULL
'\s+IS NOT NULL', // IS NOT NULL
- '\s+EXISTS\s*\([^\)]+\)', // EXISTS(sql)
- '\s+NOT EXISTS\s*\([^\)]+\)', // NOT EXISTS(sql)
+ '\s+EXISTS\s*\(.*\)', // EXISTS(sql)
+ '\s+NOT EXISTS\s*\(.*\)', // NOT EXISTS(sql)
'\s+BETWEEN\s+', // BETWEEN value AND value
- '\s+IN\s*\([^\)]+\)', // IN(list)
- '\s+NOT IN\s*\([^\)]+\)', // NOT IN (list)
+ '\s+IN\s*\(.*\)', // IN(list)
+ '\s+NOT IN\s*\(.*\)', // NOT IN (list)
'\s+LIKE\s+\S.*('.$_les.')?', // LIKE 'expr'[ ESCAPE '%s']
'\s+NOT LIKE\s+\S.*('.$_les.')?' // NOT LIKE 'expr'[ ESCAPE '%s']
);