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make ICU the default tokenizer

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Sarah Hoffmann
2022-05-10 12:02:50 +02:00
parent ed6fda6968
commit 4002bee0c1
4 changed files with 29 additions and 4 deletions
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18
docs/customize/Tokenizers.md
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@@ -19,7 +19,22 @@ they can be configured.
The legacy tokenizer implements the analysis algorithms of older Nominatim
versions. It uses a special Postgresql module to normalize names and queries.
This tokenizer is currently the default.
This tokenizer is automatically installed and used when upgrading an older
database. It should not be used for new installations anymore.
### Compiling the PostgreSQL module
The tokeinzer needs a special C module for PostgreSQL which is not compiled
by default. If you need the legacy tokenizer, compile Nominatim as follows:
```
mkdir build
cd build
cmake -DBUILD_MODULE=on
make
```
### Enabling the tokenizer
To enable the tokenizer add the following line to your project configuration:
@@ -47,6 +62,7 @@ normalization functions are hard-coded.
The ICU tokenizer uses the [ICU library](http://site.icu-project.org/) to
normalize names and queries. It also offers configurable decomposition and
abbreviation handling.
This tokenizer is currently the default.
To enable the tokenizer add the following line to your project configuration: