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<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over">
<Style name="world">
<Rule>
<PolygonSymbolizer fill="green" />
</Rule>
</Style>
<Layer name="world" srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over">
<StyleName>world</StyleName>
<Datasource>
<Parameter name="type">sqlite</Parameter>
<Parameter name="file">../sqlite/world.sqlite</Parameter>
<!-- should work with or without leveraging and index -->
<Parameter name="use_spatial_index">true</Parameter>
<!-- key_field is required if a subquery AND spatial index
is used. see: http://trac.mapnik.org/ticket/821
-->
<Parameter name="key_field">OGC_FID</Parameter>
<!--
<Parameter name="table">(SELECT * FROM world_merc)</Parameter>
-->
<Parameter name="table">(SELECT *,world_merc.rowid FROM world_merc INNER JOIN business ON business.ISO3 = world_merc.iso3) as s</Parameter>
<!--
sqlite3 world.sqlite
ATTACH DATABASE 'business.sqlite' AS business;
SELECT count(*) FROM "10m_admin_0_countries" INNER JOIN business ON business.ISO3 = iso_a3;
-->
<Parameter name="attachdb">business@business.sqlite</Parameter>
</Datasource>
</Layer>
</Map>
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