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https://issues.apache.org/jira/browse/ARROW-7821?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney updated ARROW-7821:
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Fix Version/s: (was: 0.17.0)
1.0.0
> [Gandiva] Add support for literal variables
> -------------------------------------------
>
> Key: ARROW-7821
> URL: https://issues.apache.org/jira/browse/ARROW-7821
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: C++ - Gandiva
> Reporter: Francois Saint-Jacques
> Priority: Major
> Fix For: 1.0.0
>
>
> Gandiva supports static literal constants, but doesn't support runtime
> literal constants (or simply, variables). This means that queries like `x >
> 1` and `x > 2` are compiled in separate operators. The goal would be to
> provide something like prepared statement for very simple expression, e.g. `
> x > ?`. This way we can pre-generate operators for most basic comparison
> filters on every type.
> I'm thinking that the variables should be stashed in the context pointer as
> opposed to a new function parameter. This would minimise the implementation
> impact.
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