do not run near queries on qualifier words

There is too much potential for confusion (e.g. 'Rio Grande' read
as 'river near Grande') fir too little gain. Use near phrases
instead.

nominatim/api/search/icu_tokenizer.py

@@ -8,7 +8,6 @@
 Implementation of query analysis for the ICU tokenizer.
 """
 from typing import Tuple, Dict, List, Optional, NamedTuple, Iterator, Any, cast
-from copy import copy
 from collections import defaultdict
 import dataclasses
 import difflib
@@ -188,10 +187,6 @@ async def analyze_query(self, phrases: List[qmod.Phrase]) -> qmod.QueryStruct:
                             query.add_token(trange, qmod.TokenType.NEAR_ITEM, token)
                     else:
                         query.add_token(trange, qmod.TokenType.QUALIFIER, token)
-                        if trange.start == 0 or trange.end == query.num_token_slots():
-                            token = copy(token)
-                            token.penalty += 0.1 * (query.num_token_slots())
-                            query.add_token(trange, qmod.TokenType.NEAR_ITEM, token)
                 else:
                     query.add_token(trange, DB_TO_TOKEN_TYPE[row.type], token)
 

test/python/api/search/test_icu_query_analyzer.py

@@ -148,9 +148,9 @@ async def test_qualifier_words(conn):
     query = await ana.analyze_query(make_phrase('foo BAR foo BAR foo'))
 
     assert query.num_token_slots() == 5
-    assert set(t.ttype for t in query.nodes[0].starting) == {TokenType.NEAR_ITEM, TokenType.QUALIFIER}
+    assert set(t.ttype for t in query.nodes[0].starting) == {TokenType.QUALIFIER}
     assert set(t.ttype for t in query.nodes[2].starting) == {TokenType.QUALIFIER}
-    assert set(t.ttype for t in query.nodes[4].starting) == {TokenType.NEAR_ITEM, TokenType.QUALIFIER}
+    assert set(t.ttype for t in query.nodes[4].starting) == {TokenType.QUALIFIER}
 
 
 @pytest.mark.asyncio