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Posted to dev@sedona.apache.org by 可为 <mw...@qq.com.INVALID> on 2023/02/04 03:39:50 UTC

about spatial index

Hello expert，
&nbsp; &nbsp;&nbsp;
&nbsp; &nbsp; If I convert a spatial rdd with a spatial index into a dataframe, will its spatial index be preserved? When using sedona sql to query the dataframe（e.g.&nbsp; using&nbsp; a polygon to query）, can the spatial index be used?



Thanks.

Re: about spatial index

Posted by Jia Yu <ji...@apache.org>.

Hi

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If you convert an indexed spatial index to dataframe, the index will not be
preserved. Sedona SQL query will build a one-time index on the fly.

Thanks,
Jia

On Sat, Feb 4, 2023 at 3:41 PM 可为 <mw...@qq.com.invalid> wrote:

> Hello expert，
> &nbsp; &nbsp;&nbsp;
> &nbsp; &nbsp; If I convert a spatial rdd with a spatial index into a
> dataframe, will its spatial index be preserved? When using sedona sql to
> query the dataframe（e.g.&nbsp; using&nbsp; a polygon to query）, can the
> spatial index be used?
>
>
>
> Thanks.