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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I’m not even sure how to express this properly, but I’ll try. I’m trying to build a query which will select positions within a specified polygon. I have the query:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>SELECT * FROM positions WHERE ST_Within(geometry(positions.location), ST_GeomFromText(‘POLYGON((l b, r b, r t, l t, l b))’::text, 4326));<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I want to be able to replace l, b, r, and t with variable values in a plpgsql function like so:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>$BODY$<o:p></o:p></p><p class=MsoNormal>DECLARE<o:p></o:p></p><p class=MsoNormal> l integer;<o:p></o:p></p><p class=MsoNormal> r integer;<o:p></o:p></p><p class=MsoNormal> b integer;<o:p></o:p></p><p class=MsoNormal> t integer;<o:p></o:p></p><p class=MsoNormal>BEGIN<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>SELECT pli_config.filter_left_longitude INTO l FROM pli_config;<o:p></o:p></p><p class=MsoNormal>SELECT pli_config.filter_right_longitude INTO r FROM pli_config;<o:p></o:p></p><p class=MsoNormal>SELECT pli_config.filter_bottom_latitude INTO b FROM pli_config;<o:p></o:p></p><p class=MsoNormal>SELECT pli_config.filter_top_latitude INTO t FROM pli_config;<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>SELECT * FROM positions<o:p></o:p></p><p class=MsoNormal> WHERE st_within(geometry(positions.location), st_geomfromtext('POLYGON((l b,r b,r t,l t,l b))'::text, 4326));<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>END;<o:p></o:p></p><p class=MsoNormal>$BODY$<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The problem I have is I don’t know the proper syntax to replace the variables in the single-quoted statement or even if it is possible. Any ideas?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>--Jack Gold<o:p></o:p></p></div></body></html>