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https://issues.apache.org/jira/browse/CALCITE-4786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17417801#comment-17417801
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Jacques Nadeau commented on CALCITE-4786:
-----------------------------------------
For those that are interested, tracking the work to compile within the context
of Substrait here: [https://github.com/substrait-io/substrait/issues/21]
To give people some sense of the differences using GraalVM vs JVM, I did a
non-scientific test: simple cli program that parses a trivial query, converts
it to rel and then converts it to a substrait plan (using linux time command).
|| ||JVM||Native Image||
|Query Parsing & Substrait Conversion Time|1.5s|<0.01s|
As mentioned, this would enable use cases such as FaaS/AWS Lambda where startup
time are critical. As part of this work I also hope to introduce a C API &
shared library for this type of functionality so Calcite's richness can be used
from more languages.
> Facilitate use of graalvm native-image compilation
> --------------------------------------------------
>
> Key: CALCITE-4786
> URL: https://issues.apache.org/jira/browse/CALCITE-4786
> Project: Calcite
> Issue Type: Improvement
> Components: build
> Reporter: Jacques Nadeau
> Priority: Major
>
> Right now, there are number of things that make it difficult to use Calcite
> with GraalVM native compilation.
> There are several reasons that supporting this kind of compilation could be
> beneficial:
> - Enable use of Calcite as a Lambda with minimal startup-time
> - Create a Calcite shared library that can be easily embedded in other
> languages
> Initially, I would focus this work on core parsing and query planning.
> This work was inspired by work on https://substrait.io
> Let's use this ticket to track improvements that can be done to enable this.
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