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https://issues.apache.org/jira/browse/CALCITE-1552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde resolved CALCITE-1552.
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Resolution: Fixed
Fix Version/s: 1.11.0
Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/6f761d36.
> Add RAND function, returning DOUBLE values in the range 0..1
> ------------------------------------------------------------
>
> Key: CALCITE-1552
> URL: https://issues.apache.org/jira/browse/CALCITE-1552
> Project: Calcite
> Issue Type: Bug
> Reporter: Julian Hyde
> Assignee: Julian Hyde
> Fix For: 1.11.0
>
>
> Add {{RAND}} function, returning {{DOUBLE}} values in the range 0..1. It has
> variants {{RAND()}} and {{RAND(seed)}}.
> Also, add {{RAND_INTEGER(seed, bound)}}, support for a seed when generating
> random integers.
> To support seeds, the random function needs to have state. The random number
> generator is initialized, using the seed, on first use, and subsequent calls
> use the same random number generator. So, we are building on CALCITE-1548.
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