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Posted to issues@calcite.apache.org by "Julian Hyde (JIRA)" <ji...@apache.org> on 2017/06/30 17:48:00 UTC

[jira] [Commented] (CALCITE-1861) Spatial Indexes

    [ https://issues.apache.org/jira/browse/CALCITE-1861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16070472#comment-16070472 ] 

Julian Hyde commented on CALCITE-1861:
--------------------------------------

In https://github.com/julianhyde/calcite/tree/1861-spatial I have added some library functions for mapping between co-ordinates and position on the Hilbert curve, based on http://ratml.org/misc/hilbert_curve.pdf. See also https://github.com/galtay/hilbert_curve.

> Spatial Indexes
> ---------------
>
>                 Key: CALCITE-1861
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1861
>             Project: Calcite
>          Issue Type: Improvement
>            Reporter: Atri Sharma
>            Assignee: Julian Hyde
>
> 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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