引起：com.datastax.driver.core.exceptions.InvalidQueryException：日期 (25) 的预期长度为 8 或 0 字节

Question

I developing application using Cassandra and SpringBoot. I have written Cassandra query in Java;

String userName="testUser";
String lastUpdatedDate="2018-11-29 13:00:43.400";
String tenantName="demo";

Select select = QueryBuilder.select().all()
                    .from(tenantName,getGenericClass().getSimpleName())
                    .where(QueryBuilder.eq("user_Name", userName))
                    .and(QueryBuilder.gt("last_updateddate",  lastUpdatedDate))
                    .allowFiltering()
                    .limit(100);
           return (List<T>) cassandraOperations.select(select, getGenericClass());

last_updateddate is timestamp data type column in Cassandra. userName and last_updateddate columns are composite key in database and using latest version of Cassandra.

while executing getting the following error.

Caused by: com.datastax.driver.core.exceptions.InvalidQueryException: Expected 8 or 0 byte long for date (25)

but

Issue got resolved after below change.

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));

Date date = sdf.parse(lastUpdatedDate);
long timeInSec = date.getTime();

Timestamp ts=new Timestamp(timeInSec);  
Date date1=ts;                                                                                                         
 Select select = QueryBuilder.select().all()
                        .from(tenantName,getGenericClass().getSimpleName())
                        .where(QueryBuilder.eq("user_Name", userName))
                        .and(QueryBuilder.gt("last_updateddate",  date1))
                        .allowFiltering()
                        .limit(100);
               return (List<T>) cassandraOperations.select(select, getGenericClass());

Answer 1

you have to check data type of Cassandra table and use corresponding datatype of java and use it in java code when declaring variable to pass value of column .

Example : In Cassandra LocalDate then define LocalDate of cassandra.core package in java instead Date or LocalDate of util package.

check this type mapping between Cassandra vs Java