Cassandra: how to initialize the counter column with value? -

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i have benchmark cassandra facebook linkbench. there 2 phase during benchmark, load , request phase. in load phase, linkbench fill cassandra tables : nodes, links , counts (for links counting) default values(graph data).

the count table looks this:

keyspace.counttable ( link_id bigint, link_type bigint, time bigint, version bigint, count counter, primary key (link_id, link_type, time, version)

my question how insert default counter values (before incrementing , decrementing counter in linkbench request phase) ?

if isn't possible cassandra, how should increment/decrement bigint variable (instead of counter variable)

any suggest , comments? lot.

the default value zero. given

create table counttable ( link_id bigint, link_type bigint, time bigint, version bigint, count counter, primary key (link_id, link_type, time, version) );

and

update counttable set count = count + 1 link_id = 1 , link_type = 1 , time = 1 , version = 1;

we see value of count 1.

select * counttable ; link_id | link_type | time | version | count ---------+-----------+------+---------+------- 1 | 1 | 1 | 1 | 1 (1 rows)

so, if want set other value can:

update counttable set count = count + 500 link_id = 1 , link_type = 1 , time = 1 , version = 2; select * counttable ; link_id | link_type | time | version | count ---------+-----------+------+---------+------- 1 | 1 | 1 | 1 | 1 1 | 1 | 1 | 2 | 500 (2 rows)


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