#pylint: disable=singleton-comparison,not-callable
#pylint: disable=too-many-branches,too-many-arguments,too-many-locals,too-many-statements
+def no_index(expr: SaColumn) -> SaColumn:
+ """ Wrap the given expression, so that the query planner will
+ refrain from using the expression for index lookup.
+ """
+ return sa.func.coalesce(sa.null(), expr) # pylint: disable=not-callable
+
+
def _details_to_bind_params(details: SearchDetails) -> Dict[str, Any]:
""" Create a dictionary from search parameters that can be used
as bind parameter for SQL execute.
t.c.class_, t.c.type,
t.c.address, t.c.extratags,
t.c.housenumber, t.c.postcode, t.c.country_code,
- t.c.importance, t.c.wikipedia,
+ 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,
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)
def _filter_by_layer(table: SaFromClause, layers: DataLayer) -> SaColumn:
orexpr: List[SaExpression] = []
if layers & DataLayer.ADDRESS and layers & DataLayer.POI:
- orexpr.append(table.c.rank_address.between(1, 30))
+ orexpr.append(no_index(table.c.rank_address).between(1, 30))
elif layers & DataLayer.ADDRESS:
- orexpr.append(table.c.rank_address.between(1, 29))
- orexpr.append(sa.and_(table.c.rank_address == 30,
+ orexpr.append(no_index(table.c.rank_address).between(1, 29))
+ orexpr.append(sa.and_(no_index(table.c.rank_address) == 30,
sa.or_(table.c.housenumber != None,
table.c.address.has_key('addr:housename'))))
elif layers & DataLayer.POI:
- orexpr.append(sa.and_(table.c.rank_address == 30,
+ orexpr.append(sa.and_(no_index(table.c.rank_address) == 30,
table.c.class_.not_in(('place', 'building'))))
if layers & DataLayer.MANMADE:
if not layers & DataLayer.NATURAL:
exclude.extend(('natural', 'water', 'waterway'))
orexpr.append(sa.and_(table.c.class_.not_in(tuple(exclude)),
- table.c.rank_address == 0))
+ no_index(table.c.rank_address) == 0))
else:
include = []
if layers & DataLayer.RAILWAY:
if layers & DataLayer.NATURAL:
include.extend(('natural', 'water', 'waterway'))
orexpr.append(sa.and_(table.c.class_.in_(tuple(include)),
- table.c.rank_address == 0))
+ no_index(table.c.rank_address) == 0))
if len(orexpr) == 1:
return orexpr[0]
place_ids: List[int],
details: SearchDetails) -> AsyncIterator[nres.SearchResult]:
t = conn.t.placex
- sql = _select_placex(t).where(t.c.place_id.in_(place_ids))
+ sql = _select_placex(t).add_columns(t.c.importance)\
+ .where(t.c.place_id.in_(place_ids))
if details.geometry_output:
sql = _add_geometry_columns(sql, t.c.geometry, details)
"""
table = await conn.get_class_table(*category)
- t = conn.t.placex
tgeom = conn.t.placex.alias('pgeom')
- sql = _select_placex(t).where(tgeom.c.place_id.in_(ids))\
- .where(t.c.class_ == category[0])\
- .where(t.c.type == category[1])
-
if table is None:
# No classtype table available, do a simplified lookup in placex.
- sql = sql.join(tgeom, t.c.geometry.ST_DWithin(tgeom.c.centroid, 0.01))\
- .order_by(tgeom.c.centroid.ST_Distance(t.c.centroid))
+ table = conn.t.placex.alias('inner')
+ sql = sa.select(table.c.place_id,
+ sa.func.min(tgeom.c.centroid.ST_Distance(table.c.centroid))
+ .label('dist'))\
+ .join(tgeom, table.c.geometry.intersects(tgeom.c.centroid.ST_Expand(0.01)))\
+ .where(table.c.class_ == category[0])\
+ .where(table.c.type == category[1])
else:
# Use classtype table. We can afford to use a larger
# radius for the lookup.
- sql = sql.join(table, t.c.place_id == table.c.place_id)\
- .join(tgeom,
- table.c.centroid.ST_CoveredBy(
- sa.case((sa.and_(tgeom.c.rank_address < 9,
+ sql = sa.select(table.c.place_id,
+ sa.func.min(tgeom.c.centroid.ST_Distance(table.c.centroid))
+ .label('dist'))\
+ .join(tgeom,
+ table.c.centroid.ST_CoveredBy(
+ sa.case((sa.and_(tgeom.c.rank_address > 9,
tgeom.c.geometry.is_area()),
- tgeom.c.geometry),
- else_ = tgeom.c.centroid.ST_Expand(0.05))))\
- .order_by(tgeom.c.centroid.ST_Distance(table.c.centroid))
+ tgeom.c.geometry),
+ else_ = tgeom.c.centroid.ST_Expand(0.05))))
+
+ inner = sql.where(tgeom.c.place_id.in_(ids))\
+ .group_by(table.c.place_id).subquery()
+
+ t = conn.t.placex
+ sql = _select_placex(t).add_columns((-inner.c.dist).label('importance'))\
+ .join(inner, inner.c.place_id == t.c.place_id)\
+ .order_by(inner.c.dist)
- sql = sql.where(t.c.rank_address.between(MIN_RANK_PARAM, MAX_RANK_PARAM))
+ sql = sql.where(no_index(t.c.rank_address).between(MIN_RANK_PARAM, MAX_RANK_PARAM))
if details.countries:
sql = sql.where(t.c.country_code.in_(COUNTRIES_PARAM))
if details.excluded:
# simply search in placex table
def _base_query() -> SaSelect:
return _select_placex(t) \
+ .add_columns((-t.c.centroid.ST_Distance(NEAR_PARAM))
+ .label('importance'))\
.where(t.c.linked_place_id == None) \
.where(t.c.geometry.ST_DWithin(NEAR_PARAM, NEAR_RADIUS_PARAM)) \
.order_by(t.c.centroid.ST_Distance(NEAR_PARAM)) \
table = await conn.get_class_table(*category)
if table is not None:
sql = _select_placex(t)\
+ .add_columns(t.c.importance)\
.join(table, t.c.place_id == table.c.place_id)\
.where(t.c.class_ == category[0])\
.where(t.c.type == category[1])
ccodes = self.countries.values
sql = _select_placex(t)\
+ .add_columns(t.c.importance)\
.where(t.c.country_code.in_(ccodes))\
.where(t.c.rank_address == 4)
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:
tsearch = conn.t.search_name
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.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,
- t.c.centroid,
- t.c.geometry.ST_Expand(0).label('bbox'))
- .where(t.c.place_id == tsearch.c.place_id))
+ _select_placex(t).where(t.c.place_id == tsearch.c.place_id))
if details.geometry_output:
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:
projects / nominatim.git / blobdiff