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https://issues.apache.org/jira/browse/CALCITE-1861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17055343#comment-17055343
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Julian Hyde commented on CALCITE-1861:
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{quote}How to integrate it in Calcite?
{quote}
Do you mean how do we enable spatial rules when people make a vanilla
connection to Calcite via JDBC? We don't necessarily want that. Let's do it for
this branch, and revisit before we merge to master.
Modify {{RelOptRules.registerDefaultRules}} and register the spatial rules and
I think you will get the desired effect.
Add a section to the end of {{spatial.iq}} to test rewrites, and use the
{{!plan}} command to check that they have worked. (If that section grows too
large, break out a new file {{spatial_index.iq}}.)
> Spatial Indexes
> ---------------
>
> Key: CALCITE-1861
> URL: https://issues.apache.org/jira/browse/CALCITE-1861
> Project: Calcite
> Issue Type: Improvement
> Components: spatial
> Reporter: Atri Sharma
> Priority: Major
>
> Many Calcite users, like Phoenix and Flink can benefit from support of
> Spatial indexes.
> See:
> http://revenant.ca/www/postgis/workshop/indexing.html
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