trim all coordinate output to 7 digits

[nominatim.git] / nominatim / api / search / db_searches.py

diff --git a/nominatim/api/search/db_searches.py b/nominatim/api/search/db_searches.py
index 34a4037a356b466fbb03b1e73c39583243620af7..97c4292e56710ea22fe3d10fd48e9dc6bb8d04c5 100644 (file)
--- a/nominatim/api/search/db_searches.py
+++ b/nominatim/api/search/db_searches.py
@@ -61,6 +61,7 @@ def _select_placex(t: SaFromClause) -> SaSelect:
                      t.c.housenumber, t.c.postcode, t.c.country_code,
                      t.c.importance, t.c.wikipedia,
                      t.c.parent_place_id, t.c.rank_address, t.c.rank_search,
+                     t.c.linked_place_id, t.c.admin_level,
                      t.c.centroid,
                      t.c.geometry.ST_Expand(0).label('bbox'))
 
@@ -72,13 +73,13 @@ def _add_geometry_columns(sql: SaLambdaSelect, col: SaColumn, details: SearchDet
         col = sa.func.ST_SimplifyPreserveTopology(col, details.geometry_simplification)
 
     if details.geometry_output & GeometryFormat.GEOJSON:
-        out.append(sa.func.ST_AsGeoJSON(col).label('geometry_geojson'))
+        out.append(sa.func.ST_AsGeoJSON(col, 7).label('geometry_geojson'))
     if details.geometry_output & GeometryFormat.TEXT:
         out.append(sa.func.ST_AsText(col).label('geometry_text'))
     if details.geometry_output & GeometryFormat.KML:
-        out.append(sa.func.ST_AsKML(col).label('geometry_kml'))
+        out.append(sa.func.ST_AsKML(col, 7).label('geometry_kml'))
     if details.geometry_output & GeometryFormat.SVG:
-        out.append(sa.func.ST_AsSVG(col).label('geometry_svg'))
+        out.append(sa.func.ST_AsSVG(col, 0, 7).label('geometry_svg'))
 
     return sql.add_columns(*out)
 
@@ -271,7 +272,7 @@ class NearSearch(AbstractSearch):
         """
         table = await conn.get_class_table(*category)
 
-        t = conn.t.placex.alias('p')
+        t = conn.t.placex
         tgeom = conn.t.placex.alias('pgeom')
 
         sql = _select_placex(t).where(tgeom.c.place_id.in_(ids))\
@@ -448,7 +449,8 @@ class CountrySearch(AbstractSearch):
 
         sql = sa.select(tgrid.c.country_code,
                         tgrid.c.geometry.ST_Centroid().ST_Collect().ST_Centroid()
-                              .label('centroid'))\
+                              .label('centroid'),
+                        tgrid.c.geometry.ST_Collect().ST_Expand(0).label('bbox'))\
                 .where(tgrid.c.country_code.in_(self.countries.values))\
                 .group_by(tgrid.c.country_code)
 
@@ -464,13 +466,17 @@ class CountrySearch(AbstractSearch):
                          + sa.func.coalesce(t.c.derived_name,
                                             sa.cast('', type_=conn.t.types.Composite))
                         ).label('name'),
-                        sub.c.centroid)\
+                        sub.c.centroid, sub.c.bbox)\
                 .join(sub, t.c.country_code == sub.c.country_code)
 
+        if details.geometry_output:
+            sql = _add_geometry_columns(sql, sub.c.centroid, details)
+
         results = nres.SearchResults()
         for row in await conn.execute(sql, _details_to_bind_params(details)):
             result = nres.create_from_country_row(row, nres.SearchResult)
             assert result
+            result.bbox = Bbox.from_wkb(row.bbox)
             result.accuracy = self.penalty + self.countries.get_penalty(row.country_code, 5.0)
             results.append(result)
 
@@ -512,8 +518,8 @@ class PostcodeSearch(AbstractSearch):
                 sql = sql.where(t.c.geometry.intersects(VIEWBOX_PARAM))
             else:
                 penalty += sa.case((t.c.geometry.intersects(VIEWBOX_PARAM), 0.0),
-                                   (t.c.geometry.intersects(VIEWBOX2_PARAM), 1.0),
-                                   else_=2.0)
+                                   (t.c.geometry.intersects(VIEWBOX2_PARAM), 0.5),
+                                   else_=1.0)
 
         if details.near is not None:
             if details.near_radius is not None:
@@ -580,7 +586,7 @@ class PlaceSearch(AbstractSearch):
         sql: SaLambdaSelect = sa.lambda_stmt(lambda:
                   sa.select(t.c.place_id, t.c.osm_type, t.c.osm_id, t.c.name,
                             t.c.class_, t.c.type,
-                            t.c.address, t.c.extratags,
+                            t.c.address, t.c.extratags, t.c.admin_level,
                             t.c.housenumber, t.c.postcode, t.c.country_code,
                             t.c.wikipedia,
                             t.c.parent_place_id, t.c.rank_address, t.c.rank_search,
@@ -627,10 +633,15 @@ class PlaceSearch(AbstractSearch):
                     sql = sql.where(tsearch.c.centroid.intersects(VIEWBOX_PARAM))
                 else:
                     sql = sql.where(tsearch.c.centroid.ST_Intersects_no_index(VIEWBOX_PARAM))
+            elif self.expected_count >= 10000:
+                if details.viewbox.area < 0.5:
+                    sql = sql.where(tsearch.c.centroid.intersects(VIEWBOX2_PARAM))
+                else:
+                    sql = sql.where(tsearch.c.centroid.ST_Intersects_no_index(VIEWBOX2_PARAM))
             else:
                 penalty += sa.case((t.c.geometry.intersects(VIEWBOX_PARAM), 0.0),
-                                   (t.c.geometry.intersects(VIEWBOX2_PARAM), 1.0),
-                                   else_=2.0)
+                                   (t.c.geometry.intersects(VIEWBOX2_PARAM), 0.5),
+                                   else_=1.0)
 
         if details.near is not None:
             if details.near_radius is not None:
@@ -643,13 +654,18 @@ class PlaceSearch(AbstractSearch):
                                       .label('importance'))
             sql = sql.order_by(sa.desc(sa.text('importance')))
         else:
-            sql = sql.order_by(penalty - sa.case((tsearch.c.importance > 0, tsearch.c.importance),
-                                  else_=0.75001-(sa.cast(tsearch.c.search_rank, sa.Float())/40)))
+            if self.expected_count < 10000\
+               or (details.viewbox is not None and details.viewbox.area < 0.5):
+                sql = sql.order_by(
+                        penalty - sa.case((tsearch.c.importance > 0, tsearch.c.importance),
+                                    else_=0.75001-(sa.cast(tsearch.c.search_rank, sa.Float())/40)))
             sql = sql.add_columns(t.c.importance)
 
 
-        sql = sql.add_columns(penalty.label('accuracy'))\
-                 .order_by(sa.text('accuracy'))
+        sql = sql.add_columns(penalty.label('accuracy'))
+
+        if self.expected_count < 10000:
+            sql = sql.order_by(sa.text('accuracy'))
 
         if self.housenumbers:
             hnr_regexp = f"\\m({'|'.join(self.housenumbers.values)})\\M"
@@ -675,7 +691,8 @@ class PlaceSearch(AbstractSearch):
             if self.qualifiers:
                 place_sql = place_sql.where(self.qualifiers.sql_restrict(thnr))
 
-            numerals = [int(n) for n in self.housenumbers.values if n.isdigit()]
+            numerals = [int(n) for n in self.housenumbers.values
+                        if n.isdigit() and len(n) < 8]
             interpol_sql: SaColumn
             tiger_sql: SaColumn
             if numerals and \