To avoid importance becoming zero and cancelling out other weights,
df008d99f5 introduced a minimum value
for importance. That broke importances for interpolated addresses,
which are less than zero.
Instead of setting a minimum, set zero importances to a very small
value.
Fixes#2753.
The search query builder currently rejects searches for partial
names only, when the partial terms are all very frequent to avoid
queries that return too many results.
This change slightly relaxes the condition to allow the search when
there are 3 or more partial terms. With so many terms the number
of matches should be managable.
Return OSM main tag information in geocodejson. This is not part
of the official spec but can be useful to get more detailed information
of the object type. Brings the Nominatim output closer to what
Photon produces.
'type' so far contained the value of the OSM tag. That is rarely
helpful because it is not a restricted class of values. Change
this to contain the types as defined in the geocodejson spec,
which correspond to the address layer names.
Convert the '_place_*' entries back to normal entries before
returning them in the 'namedetails' section. If the name field is
duplicated, kept the '_place_*' notation. This preserves the previous
behaviour before _place_ names were introduces but adds the additional
names from the linked place for reference.
This lays the groundwork for adding variants for housenumbers.
When analysis is enabled, then the 'word' field in the word table
is used as usual, so that variants can be created. There will be
only one analyser allowed which must have the fixed name
'@housenumber'.
The name query already looks for the existence of housenumbers and
may as well retrive them. Saves up to threee additional lookups.
It also means that we can lift the restriction on looking
for existance of housenumbers for simple queries only.
A forward interpretation of the form 'street, city, country' is
much more frequent than the reverse form 'country, city, street'.
Thus swap the order of interpretations that the forward order comes
first.
Queries with a housenumber need to rank streets higher that
have the requested housenumber attached. We already do that for
ordinary housenumber objects and for interpolations. This
adds support for Tiger housenumbers as well.
Fixes#2501.
House numbers of the form '9 bis' are usual in France. So
be a bit more lenient before adding penalties to house numbers
with letters in them.
Fixes#2527.
When ordering results by the fact that they have a housenumber,
also take cases into account where the housenumber is on the
place itself. This may happen when the search includes the name
of the place and the housenumber or for addr:place addresses
where the place is unlisted.
The fairly complex where condition of idx_placex_geometry_placenode
won't always be matched by the query planner if the condition
part doesn't appear verbatim in the query.
Fixes#2480.
Running the warm-up search requests requires querying
the most frequent words. This must be done via the tokenizer
to honor the different formats of the word table.
Additional penalty for special terms with operator None
should only go to near searches. To reduce the number
of produced searches, restrict the none operator to
appear only in conjunction with the name.
The new icu tokenizer is now no longer compatible with the old
legacy tokenizer in terms of data structures. Therefore there
is also no longer a need to refer to the legacy tokenizer in the
name.
The hack for IL, AL and LA is only needed because these abbreviations
are removed by the legacy tokenizer as a stop word. There is no need
to keep the hack for future tokenizers. Move it therefore to the
token extraction function.
This separates the logic of creating word sets from the Phrase
class. A tokenizer may now derived the word sets any way they
like. The SimpleWordList class provides a standard implementation
for splitting phrases on spaces.
Restricting tokens due to the search context is better done in
the generic search part instead of repeating the same test in
every tokenizer implementation.
