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<p>Thanks Howard for the answer,</p>
<p>Yes, for now i store it temporarly as a view that I then use in
the post SQL, but I was thinking maybe it is possible to do it
directly the PDAL way :).<br>
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Florent<br>
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<pre wrap="">On May 18, 2017, at 9:42 AM, Florent Poux <a class="moz-txt-link-rfc2396E" href="mailto:fpoux@ulg.ac.be"><fpoux@ulg.ac.be></a> wrote:
Hey all,
I am struggling with a sql query within pg.pointcloud writer that you may have a solution for.
is there a way to store the pre sql query as a variable that will be used for the post sql query ?
specifically, i want to store as pre sql the count or max from a table, and pass this parameter to condition a query in the post sql, is that possible ?
Thank you !
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Florent,
There's no *PDAL* way to do this, but could you stash your variable in some kind of temporary (are there bound-to-session variables?, maybe another table) for use by the post sql?
This reminds me I've wanted to make the PointView metadata available to DB writers' post_sql methods as a variable. Very similar to what we did for the writers.las <a class="moz-txt-link-freetext" href="https://www.pdal.io/tutorial/las.html#metadata-example">https://www.pdal.io/tutorial/las.html#metadata-example</a> I could see how this might be useful to downstream consumers.
Howard
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