CQL：InvalidRequest：来自服务器的错误：code=2200 [无效查询]

Question

create table cd_ml_api.sf_leads (
    id timeuuid,
    email text ,
    cdh_org text,
    source_of_funds text ,
    currency_purpose text ,
    created_date timestamp,
    last_modified_date timestamp,
    PRIMARY KEY (email, last_modified_date)
)  WITH CLUSTERING ORDER BY (id DESC);

在 cassandra 终端中显示错误：

InvalidRequest：来自服务器的错误：code=2200 [无效查询]
message="last_modified_date 列缺少 CLUSTERING ORDER"

Answer 1

create table cd_ml_api.sf_leads (
    id timeuuid,
    email text ,
    cdh_org text,
    source_of_funds text ,
    currency_purpose text ,
    created_date timestamp,
    last_modified_date timestamp,
    PRIMARY KEY (email, last_modified_date)
)  WITH CLUSTERING ORDER BY (last_modified_date DESC);

Cassandra 只能通过聚类键进行排序。 为了按 id 排序，它必须是集群键的一部分。