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https://issues.apache.org/jira/browse/DERBY-6942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16071337#comment-16071337
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Harshvardhan Gupta commented on DERBY-6942:
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In code, I am trying to query the statistics of those column which are backed
by indexes. (and thus their statistics exist).
I'm struck on this problem: How do we take a predicate and find out the
relevant conglomerate from the list of all conglomerates associated with that
table. From a predicate we can find out the ColumnReference which holds the
Column Name, so I am trying to use this info to find out the relevant info. I
would appreciate help on this blocker.
> Utilise additional statistics for selectivity estimates.
> --------------------------------------------------------
>
> Key: DERBY-6942
> URL: https://issues.apache.org/jira/browse/DERBY-6942
> Project: Derby
> Issue Type: Sub-task
> Components: SQL
> Reporter: Harshvardhan Gupta
> Assignee: Harshvardhan Gupta
> Priority: Minor
> Attachments: z12.txt
>
>
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