add type annotations to config module

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

diff --git a/docs/admin/Migration.md b/docs/admin/Migration.md
index 753fb5009220674e1ee2295d3ea234272dcd98a9..950f7e193beee883a5fd4d06c2ea65bcd1e500a3 100644 (file)
--- a/docs/admin/Migration.md
+++ b/docs/admin/Migration.md
@@ -1,12 +1,78 @@
 # Database Migrations
 
 # Database Migrations
 

-This page describes database migrations necessary to update existing databases
-to newer versions of Nominatim.
+Since version 3.7.0 Nominatim offers automatic migrations. Please follow
+the following steps:

 
 

-SQL statements should be executed from the PostgreSQL commandline. Execute
-`psql nominatim` to enter command line mode.
+* stop any updates that are potentially running
+* update Nominatim to the newer version
+* go to your project directory and run `nominatim admin --migrate`
+* (optionally) restart updates

 
 

-## 3.6.0 -> master
+Below you find additional migrations and hints about other structural and
+breaking changes. **Please read them before running the migration.**
+
+!!! note
+    If you are migrating from a version <3.6, then you still have to follow
+    the manual migration steps up to 3.6.
+
+## 4.0.0 -> master
+
+### ICU tokenizer is the new default
+
+Nominatim now installs the [ICU tokenizer](../customize/Tokenizers.md#icu-tokenizer)
+by default. This only has an effect on newly installed databases. When
+updating older databases, it keeps its installed tokenizer. If you still
+run with the legacy tokenizer, make sure to compile Nominatim with the
+PostgreSQL module, see [Installation](Installation.md#building-nominatim).
+
+### geocodejson output changed
+
+The `type` field of the geocodejson output has changed. It now contains
+the address class of the object instead of the value of the OSM tag. If
+your client has used the `type` field, switch them to read `osm_value`
+instead.
+
+## 3.7.0 -> 4.0.0
+
+### NOMINATIM_PHRASE_CONFIG removed
+
+Custom blacklist configurations for special phrases now need to be handed
+with the `--config` parameter to `nominatim special-phrases`. Alternatively
+you can put your custom configuration in the project directory in a file
+named `phrase-settings.json`.
+
+Version 3.8 also removes the automatic converter for the php format of
+the configuration in older versions. If you are updating from Nominatim < 3.7
+and still work with a custom `phrase-settings.php`, you need to manually
+convert it into a json format.
+
+### PHP utils removed
+
+The old PHP utils have now been removed completely. You need to switch to
+the appropriate functions of the nominatim  command line tool. See
+[Introducing `nominatim` command line tool](#introducing-nominatim-command-line-tool)
+below.
+
+## 3.6.0 -> 3.7.0
+
+### New format and name of configuration file
+
+The configuration for an import is now saved in a `.env` file in the project
+directory. This file follows the dotenv format. For more information, see
+the [installation chapter](Import.md#configuration-setup-in-env).
+
+To migrate to the new system, create a new project directory, add the `.env`
+file and port your custom configuration from `settings/local.php`. Most
+settings are named similar and only have received a `NOMINATIM_` prefix.
+Use the default settings in `settings/env.defaults` as a reference.
+
+### New location for data files
+
+External data files for Wikipedia importance, postcodes etc. are no longer
+expected to reside in the source tree by default. Instead they will be searched
+in the project directory. If you have an automated setup script you must
+either adapt the download location or explicitly set the location of the
+files to the old place in your `.env`.

 
 ### Introducing `nominatim` command line tool
 
 
 ### Introducing `nominatim` command line tool
 


@@ -19,14 +85,20 @@ functionality of each script:
 * ./utils/setup.php: `import`, `freeze`, `refresh`
 * ./utils/update.php: `replication`, `add-data`, `index`, `refresh`
 * ./utils/specialphrases.php: `special-phrases`
 * ./utils/setup.php: `import`, `freeze`, `refresh`
 * ./utils/update.php: `replication`, `add-data`, `index`, `refresh`
 * ./utils/specialphrases.php: `special-phrases`

-* ./utils/check_import_finished.php: `check-database`
-* ./utils/warm.php: `warm`
+* ./utils/check_import_finished.php: `admin`
+* ./utils/warm.php: `admin`

 * ./utils/export.php: `export`
 
 Try `nominatim <command> --help` for more information about each subcommand.
 
 `./utils/query.php` no longer exists in its old form. `nominatim search`
 * ./utils/export.php: `export`
 
 Try `nominatim <command> --help` for more information about each subcommand.
 
 `./utils/query.php` no longer exists in its old form. `nominatim search`

-provides a replacement.
+provides a replacement but returns different output.
+
+### Switch to normalized house numbers
+
+The housenumber column in the placex table uses now normalized version.
+The automatic migration step will convert the column but this may take a
+very long time. It is advisable to take the machine offline while doing that.

 
 ## 3.5.0 -> 3.6.0
 
 
 ## 3.5.0 -> 3.6.0
 


@@ -46,7 +118,7 @@ done
 
 The debugging UI is no longer directly provided with Nominatim. Instead we
 now provide a simple Javascript application. Please refer to
 
 The debugging UI is no longer directly provided with Nominatim. Instead we
 now provide a simple Javascript application. Please refer to

-[Setting up the Nominatim UI](../Setup-Nominatim-UI) for details on how to
+[Setting up the Nominatim UI](Setup-Nominatim-UI.md) for details on how to

 set up the UI.
 
 The icons served together with the API responses have been moved to the
 set up the UI.
 
 The icons served together with the API responses have been moved to the


@@ -90,6 +162,14 @@ configuration file, run the following command after updating:
 ./utils/setup.php --setup-website
 ```
 
 ./utils/setup.php --setup-website
 ```
 

+### Update SQL code
+
+To update the SQL code to the leatest version run:
+
+```
+./utils/setup.php --create-functions --enable-diff-updates --create-partition-functions
+```
+

 ## 3.4.0 -> 3.5.0
 
 ### New Wikipedia/Wikidata importance tables
 ## 3.4.0 -> 3.5.0
 
 ### New Wikipedia/Wikidata importance tables