add migration for new lookup index

[nominatim.git] / docs / admin / Import.md

diff --git a/docs/admin/Import.md b/docs/admin/Import.md
index 425812a7c12261488b64b4bb7980c5ca86d73eea..7ebebde3559b925970b0557748c61f0d7f13ddac 100644 (file)
--- a/docs/admin/Import.md
+++ b/docs/admin/Import.md
@@ -47,8 +47,9 @@ You can also set the same configuration via environment variables. All
 settings have a `NOMINATIM_` prefix to avoid conflicts with other environment
 variables.
 
-There are lots of configuration settings you can tweak. Have a look
-at `Nominatim/settings/env.default` for a full list. Most should have a sensible default.
+There are lots of configuration settings you can tweak. A full reference
+can be found in the chapter [Configuration Settings](../customize/Settings.md).
+Most should have a sensible default.
 
 #### Flatnode files
 
@@ -95,7 +96,7 @@ This data can be optionally downloaded into the project directory:
     wget https://www.nominatim.org/data/us_postcodes.csv.gz
 
 You can also add your own custom postcode sources, see
-[Customization of postcodes](Customization.md#external-postcode-data).
+[Customization of postcodes](../customize/Postcodes.md).
 
 ## Choosing the data to import
 
@@ -270,20 +271,7 @@ reverse query, e.g. `http://localhost:8088/reverse.php?lat=27.1750090510034&lon=
 To run Nominatim via webservers like Apache or nginx, please read the
 [Deployment chapter](Deployment.md).
 
-## Tuning the database
-
-Accurate word frequency information for search terms helps PostgreSQL's query
-planner to make the right decisions. Recomputing them can improve the performance
-of forward geocoding in particular under high load. To recompute word counts run:
-
-```sh
-nominatim refresh --word-counts
-```
-
-This will take a couple of hours for a full planet installation. You can
-also defer that step to a later point in time when you realise that
-performance becomes an issue. Just make sure that updates are stopped before
-running this function.
+## Adding search through category phrases
 
 If you want to be able to search for places by their type through
 [special phrases](https://wiki.openstreetmap.org/wiki/Nominatim/Special_Phrases)