mapnik wms server, change postgis datasource using extra param in get map query -


i’m using pure python mapnik server publishing wms. change source data sql query(where statement), based on argument in map query.

is possible put variable data source definition in mapnik xml configuration file (like in example below). suppose not?

(select sth, sth2 ex_points arg=value map query) input

have idea how this?


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