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https://issues.apache.org/jira/browse/IGNITE-25716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18007989#comment-18007989
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Pavel Pereslegin commented on IGNITE-25716:
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[~mzhuravkov], [~zstan],
take a look at the proposed changes, please.
> Sql. Normalize dynamic parameter value according to the determined type
> -----------------------------------------------------------------------
>
> Key: IGNITE-25716
> URL: https://issues.apache.org/jira/browse/IGNITE-25716
> Project: Ignite
> Issue Type: Bug
> Components: sql, sql ai3
> Reporter: Pavel Pereslegin
> Assignee: Pavel Pereslegin
> Priority: Major
> Labels: ignite-3
> Time Spent: 1h
> Remaining Estimate: 0h
>
> The following test fails
> {code:java}
> LocalTime time = LocalTime.parse("00:00:00.1");
> assertQuery("SELECT ?::TIME") // SELECT ?::TIME(0) produces the same
> result
> .withParam(time)
> .returns(time.withNano(0))
> .check();
> // Expected: 00:00 <class java.time.LocalTime>
> // Actual: 00:00:00.100 <class java.time.LocalTime>
> {code}
> The plan is
> {noformat}
> Project(EXPR$0=[CAST(?0):TIME(0)]): rowcount = 1.0, cumulative cost =
> IgniteCost [rowCount=2.0, cpu=2.0, memory=0.0, io=0.0, network=0.0], id = 28
> Values(tuples=[[{ 0 }]]): rowcount = 1.0, cumulative cost = IgniteCost
> [rowCount=1.0, cpu=1.0, memory=0.0, io=0.0, network=0.0], id = 24
> {noformat}
> The type of dynamic parameter is determined as TIME(0), so Calcite doesn't
> implement excessive cast (TIME::TIME) for this case.
> A possible solution is to normalize the value of the dynamic parameter to a
> determined type on initialization, so that when it is retrieved from the
> execution context, it already has the expected precision.
> p.s. Check how DECIMAL works
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