Yes, so I've been researching for some time and found out it is not uncommon for people to have problems with ordering data in Cassandra, but I still can't figure out why my selects are not being ordered in the right way. So here is my table creation query:
CREATE TABLE library.query1 (
id int,
gender text,
surname text,
email text,
addinfo text,
endid int,
name text,
phone int,
PRIMARY KEY ((id), gender, surname, email)
) WITH CLUSTERING ORDER BY (gender DESC, surname DESC, email DESC);
As implicit, I want to order my data by gender > surname > email.
I then import data via CVN, as I'm importing data from PostgreSQL tables. Here's the SELECT I'm using:
SELECT id, gender, name, surname, phone, email
FROM library.query1;
Is there something I'm forgetting in the query for the ordering to be done, or is my modeling wrong?
You could create a partition for male users for example. Then your ordering should work fine.
CREATE TABLE library.query1 (
id int,
gender text,
surname text,
email text,
addinfo text,
endid int,
name text,
phone int,
PRIMARY KEY (gender, surname, email)
) WITH CLUSTERING ORDER BY (surname DESC, email DESC);