CassandraPersistentPropertyComparator and CassandraPrimaryKeyColumnAnnotationComparator sort properties by column name

[akshaysu]

I found that when having composite key in the entity, generated DDL differs when @PrimaryKeyColumn.name is used.
spring-data-cassandra version - 4.0.4
java-driver-core - 4.15.0
cassandra server - 4.0.8

Example:

@PrimaryKeyClass
public class PersonKey implements Serializable {
    @PrimaryKeyColumn(name = "firstname", type= PrimaryKeyType.PARTITIONED)
    private String firstName;

    @PrimaryKeyColumn(name="aname", type =  PrimaryKeyType.PARTITIONED)
    private String aName;

    @PrimaryKeyColumn(name="lastname", type = PrimaryKeyType.CLUSTERED)
    private String lastName;

    @PrimaryKeyColumn(name= "bname", type = PrimaryKeyType.CLUSTERED)
    private String bName;
}

Generated DDL is

CREATE TABLE springtest.person (
    aname text,
    firstname text,
    bname text,
    lastname text,
    age text,
    PRIMARY KEY ((aname, firstname), bname, lastname)
) WITH CLUSTERING ORDER BY (bname ASC, lastname ASC)

@PrimaryKeyClass
public class PersonKey implements Serializable {
    @PrimaryKeyColumn(type= PrimaryKeyType.PARTITIONED)
    private String firstName;

    @PrimaryKeyColumn(type =  PrimaryKeyType.PARTITIONED)
    private String aName;

    @PrimaryKeyColumn(type = PrimaryKeyType.CLUSTERED)
    private String lastName;

    @PrimaryKeyColumn(type = PrimaryKeyType.CLUSTERED)
    private String bName;
}

Generated DDL is

CREATE TABLE springtest.person (
    firstname text,
    aname text,
    lastname text,
    bname text,
    age text,
    PRIMARY KEY ((firstname, aname), lastname, bname)
) WITH CLUSTERING ORDER BY (lastname ASC, bname ASC)

It seems issue is not using class field name as column name while ordering the properties of the primary key class Entity. Please confirm whether this is an issue.

Thanks

[mp911de]

It is unfortunate to have the name within the column name comparison, but we always considered the column name as comparison argument. This issue is a bug at its core because we should not sort by column name but rather fall back to the field order.

For the time being, please use @PrimaryKeyColumn(ordinal = …) to provide a sort order for your columns.