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https://issues.apache.org/jira/browse/IGNITE-4035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15566625#comment-15566625
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Sergi Vladykin commented on IGNITE-4035:
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Are you sure your example covers all the possible cases for that cache to make
any conclusions?
> SQL: Avoid excessive calls of deterministic functions on same arguments
> -----------------------------------------------------------------------
>
> Key: IGNITE-4035
> URL: https://issues.apache.org/jira/browse/IGNITE-4035
> Project: Ignite
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 1.6, 1.7
> Reporter: Andrew Mashenkov
> Labels: performance
>
> In sql query example below, heavy "datediff" deterministic function will be
> called 4 times per row. I'd expected function was called once per row.
> Example:
> {noformat}
> Select
> avg(datediff('s',ts1,ts2)) as avg_diff,
> min(datediff('s',ts1,ts2)) as min_diff,
> max(datediff('s',ts1,ts2)) as max_diff
> From table
> {noformat}
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