Merge pull request #3096 from alfmarcua/search-within-countries-parameter

[nominatim.git] / docs / customize / Settings.md

diff --git a/docs/customize/Settings.md b/docs/customize/Settings.md
index 3a45e8fecd80f1db79ceb8e06639660af38153cc..ebfa2421a12d79a7a7580afb504b073642c4844b 100644 (file)
--- a/docs/customize/Settings.md
+++ b/docs/customize/Settings.md
@@ -148,6 +148,29 @@ Setting this option to 'yes' means that Nominatim skips reindexing of contained
 objects when the area becomes too large.
 
 
+#### NOMINATIM_UPDATE_FORWARD_DEPENDENCIES
+
+| Summary            |                                                     |
+| --------------     | --------------------------------------------------- |
+| **Description:**   | Forward geometry changes to dependet objects |
+| **Format:**        | bool |
+| **Default:**       | no |
+| **Comment:**       | EXPERT ONLY. Must not be enabled after import. |
+
+The geometry of OSM ways and relations may change when a node that is part
+of the object is moved around. These changes are not propagated per default.
+The geometry of ways/relations is only updated the next time that the object
+itself is touched. When enabling this option, then dependent objects will
+be marked for update when one of its member objects changes.
+
+Enabling this option may slow down updates significantly.
+
+!!! warning
+    If you want to enable this option, it must be set already on import.
+    Do not enable this option on an existing database that was imported with
+    NOMINATIM_UPDATE_FORWARD_DEPENDENCIES=no.
+    Updates will become unusably slow.
+
 #### NOMINATIM_LANGUAGES
 
 | Summary            |                                                     |
@@ -189,7 +212,7 @@ will be used.
 | **Description:**   | Enable searching for Tiger house number data |
 | **Format:**        | boolean |
 | **Default:**       | no |
-| **After Changes:** | run `nominatim --refresh --functions` |
+| **After Changes:** | run `nominatim refresh --functions` |
 
 When this setting is enabled, search and reverse queries also take data
 from [Tiger house number data](Tiger.md) into account.
@@ -202,7 +225,7 @@ from [Tiger house number data](Tiger.md) into account.
 | **Description:**   | Enable searching in external house number tables |
 | **Format:**        | boolean |
 | **Default:**       | no |
-| **After Changes:** | run `nominatim --refresh --functions` |
+| **After Changes:** | run `nominatim refresh --functions` |
 | **Comment:**       | Do not use. |
 
 When this setting is enabled, search queries also take data from external
@@ -354,6 +377,9 @@ location for OSM nodes. For larger imports it can significantly speed up
 the import. When this option is unset, then osm2pgsql uses a PsotgreSQL table
 to store the locations.
 
+When a relative path is given, then the flatnode file is created/searched
+relative to the project directory.
+
 !!! warning
 
     The flatnode file is not only used during the initial import but also
@@ -601,6 +627,23 @@ with a single query.
 
 Setting this parameter to 0 disables polygon output completely.
 
+
+#### NOMINATIM_SEARCH_WITHIN_COUNTRIES
+
+| Summary            |                                                     |
+| --------------     | --------------------------------------------------- |
+| **Description:**   | Disable search for elements that are not in the country grid |
+| **Format:**        | boolean |
+| **Default:**       | no |
+| **After Changes:** | run `nominatim refresh --website` |
+
+Enable to search elements just within countries.
+
+When enabled, if, despite not finding a point within the static grid of countries, it
+finds a geometry of a region, do not return the geometry.
+Return "Unable to geocode" instead.
+
+
 ### Logging Settings
 
 #### NOMINATIM_LOG_DB
@@ -631,12 +674,16 @@ Can be used as the same time as NOMINATIM_LOG_FILE.
 | **After Changes:** | run `nominatim refresh --website` |
 
 Enable logging of requests into a file with this setting by setting the log
-file where to log to. The entries in the log file have the following format:
+file where to log to. A relative file name is assumed to be relative to
+the project directory.
+
+
+The entries in the log file have the following format:
 
     <request time> <execution time in s> <number of results> <type> "<query string>"
 
 Request time is the time when the request was started. The execution time is
-given in ms and corresponds to the time the query took executing in PHP.
+given in seconds and corresponds to the time the query took executing in PHP.
 type contains the name of the endpoint used.
 
 Can be used as the same time as NOMINATIM_LOG_DB.