[ https://issues.apache.org/jira/browse/CASSANDRA-11031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sylvain Lebresne resolved CASSANDRA-11031. ------------------------------------------ Resolution: Duplicate This is a duplicate of CASSANDRA-6377 (though the later is arguably a little bit more generic than this) and will be implemented eventually. > Support “ALLOW FILTERING" for Partition Key > ------------------------------------------- > > Key: CASSANDRA-11031 > URL: https://issues.apache.org/jira/browse/CASSANDRA-11031 > Project: Cassandra > Issue Type: New Feature > Components: CQL > Reporter: ZhaoYang > Assignee: ZhaoYang > Fix For: 2.1.x, 3.x > > > Currently, Allow Filtering only works for secondary Index column or > clustering columns. And it's slow, because Cassandra will read all data from > SSTABLE from hard-disk to memory to filter. > But we can support allow filtering on Partition Key, as far as I know, > Partition Key is in memory, so we can easily filter them, and then read > required data from SSTable. > This will similar to "Select * from table" which scan through entire cluster. > CREATE TABLE my_table ( > pk1 text, > pk2 text, > c1 text, > c2 text, > v1 text, > v2 text, > PRIMARY KEY ((pk1,pk2),c1,c2) > ) ; > Select * from my_table where pk1 = "partition key part 1" allow filtering; -- This message was sent by Atlassian JIRA (v6.3.4#6332)