X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/c86cfefc4813d275073fb5f2b196ddfcc7f26aef..90b29aa8080ffae08084cf556b45e05f9f2d3198:/docs/admin/Import.md diff --git a/docs/admin/Import.md b/docs/admin/Import.md index 576c0097..d84a2376 100644 --- a/docs/admin/Import.md +++ b/docs/admin/Import.md @@ -74,15 +74,15 @@ but it will improve the quality of the results if this is installed. This data is available as a binary download. Put it into your project directory: cd $PROJECT_DIR - wget https://www.nominatim.org/data/wikimedia-importance.sql.gz + wget https://nominatim.org/data/wikimedia-importance.sql.gz The file is about 400MB and adds around 4GB to the Nominatim database. !!! tip - If you forgot to download the wikipedia rankings, you can also add - importances after the import. Download the files, then run - `nominatim refresh --wiki-data --importance`. Updating importances for - a planet can take a couple of hours. + If you forgot to download the wikipedia rankings, then you can + also add importances after the import. Download the SQL files, then + run `nominatim refresh --wiki-data --importance`. Updating + importances for a planet will take a couple of hours. ### External postcodes @@ -92,8 +92,8 @@ and the UK (using the [CodePoint OpenData set](https://osdatahub.os.uk/downloads This data can be optionally downloaded into the project directory: cd $PROJECT_DIR - wget https://www.nominatim.org/data/gb_postcodes.csv.gz - wget https://www.nominatim.org/data/us_postcodes.csv.gz + wget https://nominatim.org/data/gb_postcodes.csv.gz + wget https://nominatim.org/data/us_postcodes.csv.gz You can also add your own custom postcode sources, see [Customization of postcodes](../customize/Postcodes.md). @@ -139,7 +139,7 @@ import. So this option is particularly interesting if you plan to transfer the database or reuse the space later. !!! warning - The datastructure for updates are also required when adding additional data + The data structure for updates are also required when adding additional data after the import, for example [TIGER housenumber data](../customize/Tiger.md). If you plan to use those, you must not use the `--no-updates` parameter. Do a normal import, add the external data and once you are done with @@ -150,7 +150,7 @@ database or reuse the space later. If you only want to use the Nominatim database for reverse lookups or if you plan to use the installation only for exports to a -[photon](https://photon.komoot.de/) database, then you can set up a database +[photon](https://photon.komoot.io/) database, then you can set up a database without search indexes. Add `--reverse-only` to your setup command above. This saves about 5% of disk space. @@ -271,20 +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)