use new tiger step column for queries

[nominatim.git] / lib-php / PlaceLookup.php

diff --git a/lib-php/PlaceLookup.php b/lib-php/PlaceLookup.php
index 0e4b63bc6ba81335b2c7ec78f3f9fa17363adcdd..120f55436acb482de8d374019b2a30b05ffd2c0b 100644 (file)
--- a/lib-php/PlaceLookup.php
+++ b/lib-php/PlaceLookup.php
@@ -348,7 +348,9 @@ class PlaceLookup
                     $sSQL .= '     null::text AS extra_place ';
                     $sSQL .= ' FROM (';
                     $sSQL .= '     SELECT place_id, ';    // interpolate the Tiger housenumbers here
                     $sSQL .= '     null::text AS extra_place ';
                     $sSQL .= ' FROM (';
                     $sSQL .= '     SELECT place_id, ';    // interpolate the Tiger housenumbers here

-                    $sSQL .= '         ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float) AS centroid, ';
+                    $sSQL .= '         CASE WHEN startnumber != endnumber';
+                    $sSQL .= '              THEN ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float)';
+                    $sSQL .= '              ELSE ST_LineInterpolatePoint(linegeo, 0.5) END AS centroid, ';

                     $sSQL .= '         parent_place_id, ';
                     $sSQL .= '         housenumber_for_place';
                     $sSQL .= '     FROM (';
                     $sSQL .= '         parent_place_id, ';
                     $sSQL .= '         housenumber_for_place';
                     $sSQL .= '     FROM (';