Github user ilgrosso commented on a diff in the pull request: https://github.com/apache/syncope/pull/40#discussion_r89058906 --- Diff: core/persistence-jpa/src/main/java/org/apache/syncope/core/persistence/jpa/dao/JPAAnySearchDAO.java --- @@ -769,7 +783,12 @@ private void fillAttributeQuery(final StringBuilder query, final PlainAttrValue if (not) { query.append(" NOT "); } - query.append(" LIKE ?").append(setParameter(parameters, cond.getExpression())); + query.append(" LIKE "); --- End diff -- Ah, it seems you're right, good to know! For additional safety, I have found references for [H2](http://www.h2database.com/html/functions.html#lower), [MySQL](http://www.sqlinfo.net/mysql/mysql_function_upper_lower.php), [PostgreSQL](https://www.postgresql.org/docs/9.3/static/functions-string.html), [Oracle DB](http://www.sqlinfo.net/oracle/oracle_function_upper_lower.php), [MS SQL Server](http://www.sqlinfo.net/sqlserver/sql_server_function_upper_lower.php), hence all of our supported DBMSes
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