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Jonathan Ellis commented on CASSANDRA-4736: ------------------------------------------- My point is that the performance difference between {{SELECT foo}} and {{SELECT exists(foo)}} is small, unless foo is a blob. > Cassandra should expose a native existence check API > ---------------------------------------------------- > > Key: CASSANDRA-4736 > URL: https://issues.apache.org/jira/browse/CASSANDRA-4736 > Project: Cassandra > Issue Type: Improvement > Components: Core > Reporter: sankalp kohli > Priority: Minor > Labels: features > > Currently Cassandra does not have an existence check API. Because of this, > data needs to be read and thats how you know whether data is present or not. > This is not optimal because one replica needs to provide data. Instead a new > API could be exposed where each replica only sends out hash of the data. > Repairs and other stuff can happen like a normal read call. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira