Andrew Mashenkov created IGNITE-4035:
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Summary: 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: Improvement
Components: SQL
Affects Versions: 1.7, 1.6
Reporter: Andrew Mashenkov
In sql query example below, heavy "datediff" deterministic function will be
called 4 times per row. I'd expect function call once per row.
It seems deterministic flag semantic is broken.
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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