X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/139cea5720e3b1030ec9a10c678d723752d707f4..bf683d434bcbd57bf146c05047adc88a62f79387:/docs/admin/Installation.md

diff --git a/docs/admin/Installation.md b/docs/admin/Installation.md
index cb0df5c1..3db16c3b 100644
--- a/docs/admin/Installation.md
+++ b/docs/admin/Installation.md
@@ -4,8 +4,8 @@ This page contains generic installation instructions for Nominatim and its
 prerequisites. There are also step-by-step instructions available for
 the following operating systems:
 
-  * [Ubuntu 24.04](../appendix/Install-on-Ubuntu-24.md)
-  * [Ubuntu 22.04](../appendix/Install-on-Ubuntu-22.md)
+  * [Ubuntu 24.04](Install-on-Ubuntu-24.md)
+  * [Ubuntu 22.04](Install-on-Ubuntu-22.md)
 
 These OS-specific instructions can also be found in executable form
 in the `vagrant/` directory.
@@ -22,33 +22,24 @@ and can't offer support.
 
 ### Software
 
-!!! Warning
-    For larger installations you **must have** PostgreSQL 11+ and PostGIS 3+
-    otherwise import and queries will be slow to the point of being unusable.
-    Query performance has marked improvements with PostgreSQL 13+ and PostGIS 3.2+.
-
 For running Nominatim:
 
-  * [PostgreSQL](https://www.postgresql.org) (9.6+ will work, 11+ strongly recommended)
-  * [PostGIS](https://postgis.net) (2.2+ will work, 3.0+ strongly recommended)
+  * [PostgreSQL](https://www.postgresql.org) (12+ will work, 13+ strongly recommended)
+  * [PostGIS](https://postgis.net) (3.0+ will work, 3.2+ strongly recommended)
   * [osm2pgsql](https://osm2pgsql.org) (1.8+, optional when building with CMake)
   * [Python 3](https://www.python.org/) (3.7+)
 
 Furthermore the following Python libraries are required:
 
-  * [Psycopg2](https://www.psycopg.org) (2.7+)
+  * [Psycopg3](https://www.psycopg.org)
   * [Python Dotenv](https://github.com/theskumar/python-dotenv)
   * [psutil](https://github.com/giampaolo/psutil)
   * [Jinja2](https://palletsprojects.com/p/jinja/)
-  * [SQLAlchemy](https://www.sqlalchemy.org/) (1.4.31+ with greenlet support)
-  * one of
-    * [psycopg3](https://www.psycopg.org)
-    * [asyncpg](https://magicstack.github.io/asyncpg) (0.8+)
   * [PyICU](https://pypi.org/project/PyICU/)
   * [PyYaml](https://pyyaml.org/) (5.1+)
   * [datrie](https://github.com/pytries/datrie)
 
-These will be installed automatically, when using pip installation.
+These will be installed automatically when using pip installation.
 
 When using legacy CMake-based installation:
 
@@ -69,18 +60,13 @@ For running continuous updates:
 
 For running the Python frontend:
 
+  * [SQLAlchemy](https://www.sqlalchemy.org/) (1.4.31+ with greenlet support)
+  * [asyncpg](https://magicstack.github.io/asyncpg) (0.8+, only when using SQLAlchemy < 2.0)
   * one of the following web frameworks:
     * [falcon](https://falconframework.org/) (3.0+)
     * [starlette](https://www.starlette.io/)
   * [uvicorn](https://www.uvicorn.org/)
 
-For running the legacy PHP frontend:
-
-  * [PHP](https://php.net) (7.3+)
-  * PHP-pgsql
-  * PHP-intl (bundled with PHP)
-
-
 For dependencies for running tests and building documentation, see
 the [Development section](../develop/Development-Environment.md).
 
@@ -162,7 +148,7 @@ Nominatim is easiest to run from its own virtual environment. To create one, run
 
 To install Nominatim directly from the source tree into the virtual environment, run:
 
-    /srv/nominatim-venv/bin/pip install packaging/nominatim-{core,db,api}
+    /srv/nominatim-venv/bin/pip install packaging/nominatim-{db,api}
 
 #### Building in legacy CMake mode
 
@@ -187,17 +173,6 @@ make
 sudo make install
 ```
 
-!!! warning
-    The default installation no longer compiles the PostgreSQL module that
-    is needed for the legacy tokenizer from older Nominatim versions. If you
-    are upgrading an older database or want to run the
-    [legacy tokenizer](../customize/Tokenizers.md#legacy-tokenizer) for
-    some other reason, you need to enable the PostgreSQL module via
-    cmake: `cmake -DBUILD_MODULE=on ../Nominatim`. To compile the module
-    you need to have the server development headers for PostgreSQL installed.
-    On Ubuntu/Debian run: `sudo apt install postgresql-server-dev-<postgresql version>`
-
-
 Nominatim installs itself into `/usr/local` per default. To choose a different
 installation directory add `-DCMAKE_INSTALL_PREFIX=<install root>` to the
 cmake command. Make sure that the `bin` directory is available in your path