Query method with bind parameter List<byte[]> does no longer work

[kunjiyan]

Hello, the following example doesn't work any more after upgrading spring-boot version from 3.3.2 to 3.3.3 / 3.3.4.
uuid is a BINARY(16) column in a table in MariaDB 10.6.18.

@Query(
      "(SELECT "
          + ALL_COLUMNS
          + " FROM user WHERE uuid IN (:uuids)) "
  List<User> findAllByUuids(List<byte[]> uuids);

It looks like the problem is caused by this fix in the class org.springframework.data.jdbc.repository.query.StringBasedJdbcQuery.

I debugged a bit and it looks like in the version 3.3.3 in the function StringBasedJdbcQuery.bindParameters(RelationalParameterAccessor accessor) a new function writeValue is called which iterates through each byte[] using writeJdbcValue and gets a jdbcValue for each byte in the array - jdbcType VARBINARY. The end result of the bindParameters' value is ArrayList<Object[16]> with Byte items.

If I understand correctly in the 3.3.2 version the bindParameters function uses convertAndAddParameter which calls writeJdbcValue for a byte[] and the result jdbcType is BINARY. The result value of bindParameters is ArrayList<byte[]>.

The error for List.of([-8, 7, -57, -71, -23, -77, 70, 24, -70, -19, -113, 98, -9, 0, 121, 119])

org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; bad SQL grammar 
Caused by: java.sql.SQLSyntaxErrorException: (conn=714) Could not convert [-8] to -3

Maybe a check for treating List<byte[]> should be added to differentiate from the tuple processing ?
Thanks in advance !

[schauder]

If you are dealing with UUIDs it assume that actually using the UUID type both in the database an in Java probably does work better.

That said, I still consider this a regression and we'll look into it.

[frivoire]

If you are dealing with UUIDs it assume that actually using the UUID type both in the database an in Java probably does work better.

I totally agree with this, it will be simpler 👍
Sadly, the UUID type on MariaDB is not available until a fairly recent version (10.7 which is not LTS, so 10.11 in LTS version => released in 2023), thus not applicable in all environments yet 😿