Re: Secondary indices on boolean type columns

2015-10-08 Thread Robert Coli
On Thu, Oct 8, 2015 at 2:37 AM, anuja jain wrote: > 1. Does creating secondary index on low cardinality columns like of > boolean type helps in read performance any ways? > No. > 2. Should secondary indexes be created on clustering columns even if these > columns are not frequently used in wher

Re: Secondary indices on boolean type columns

2015-10-08 Thread Jack Krupansky
Secondary indexes are not a recommended best practice. Better choices: 1. The new 3.0 materialized views. 2. Manual query tables 3. DSE Search/Solr 4a. Stratio Lucene indexing 4b. TupleJump Stargate Lucene indexing In any case, low cardinality is not recommended for indexes. The goal is that a qu

Secondary indices on boolean type columns

2015-10-08 Thread anuja jain
I have two questions, 1. Does creating secondary index on low cardinality columns like of boolean type helps in read performance any ways? Because there will be only two values( true and false ) for that column in index table. 2. Should secondary indexes be created on clustering columns even if th