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From "Mirchi Seth (JIRA)" <>
Subject [jira] [Issue Comment Deleted] (CASSANDRA-10560) Remove unnecessary index lookups for single partition reads
Date Sun, 25 Oct 2015 18:42:27 GMT


Mirchi Seth updated CASSANDRA-10560:
    Comment: was deleted

(was: test)

> Remove unnecessary index lookups for single partition reads
> -----------------------------------------------------------
>                 Key: CASSANDRA-10560
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Sam Tunnicliffe
>            Assignee: Sam Tunnicliffe
>             Fix For: 3.0.0
> For single partition reads, we currently perform an unnecessary call to SecondaryIndexManager
to lookup the most selective index based on the command's RowFilter. This is redundant as
if any applicable indexes are present, the query would be performed using a range command
(there was some code introduced into {{CassandraIndexSearcher}} by CASSANDRA-8099 in preparation
for supporting indexes on single partition reads, but it is as yet unused). Given that, we
should make sure we don't perform that lookup for now.

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