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add a small penalty to lookups in address vectors

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Sarah Hoffmann
2023-07-04 16:54:42 +02:00
parent ce17b0eeca
commit 3266daa8fd
1 changed files with 3 additions and 1 deletions
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4
nominatim/api/search/db_search_builder.py
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@@ -210,7 +210,9 @@ class SearchBuilder:
exp_addr_count = min(t.count for t in addr_partials) if addr_partials else exp_name_count exp_addr_count = min(t.count for t in addr_partials) if addr_partials else exp_name_count
if exp_addr_count < 1000 and partials_indexed: if exp_addr_count < 1000 and partials_indexed:
# Lookup by address partials and restrict results through name terms. # Lookup by address partials and restrict results through name terms.
yield penalty, exp_addr_count,\ # Give this a small penalty because lookups in the address index are
# more expensive
yield penalty + exp_addr_count/5000, exp_addr_count,\
[dbf.FieldLookup('name_vector', [t.token for t in name_partials], 'restrict'), [dbf.FieldLookup('name_vector', [t.token for t in name_partials], 'restrict'),
dbf.FieldLookup('nameaddress_vector', addr_tokens, 'lookup_all')] dbf.FieldLookup('nameaddress_vector', addr_tokens, 'lookup_all')]
return return