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update documentation for new wikipedia data

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Sarah Hoffmann
2019-11-01 10:07:04 +01:00
parent d1a9dc0f24
commit d53af96aa4
4 changed files with 25 additions and 18 deletions
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docs/admin/Migration.md
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@@ -6,6 +6,21 @@ to newer versions of Nominatim.
SQL statements should be executed from the PostgreSQL commandline. Execute
`psql nominatim` to enter command line mode.
## 3.4.0 -> master
### New Wikipedia/Wikidata importance tables
The `wikipedia_*` tables have a new format that also includes references to
Wikidata. You need to update the computation functions and the tables as
follows:
* download the new Wikipedia tables as described in the import section
* reimport the tables: `./utils/setup.php --import-wikipedia-articles`
* update the functions: `./utils/setup.php --create-functions --enable-diff-updates`
* compute importance: `./utils/update.php --recompute-importance`
The last step takes about 10 hours on the full planet.
## 3.3.0 -> 3.4.0
### Reorganisation of location_area_country table