Nominatim/data-sources/wikipedia-wikidata/import_wikidata.sh

275 lines
8.2 KiB
Bash
Executable File

#!/bin/bash
psqlcmd() {
psql --quiet wikiprocessingdb
}
mysql2pgsqlcmd() {
./mysql2pgsql.perl /dev/stdin /dev/stdout
}
download() {
echo "Downloading $1"
wget --quiet --no-clobber --tries 3 "$1"
}
# languages to process (refer to List of Wikipedias here: https://en.wikipedia.org/wiki/List_of_Wikipedias)
# requires Bash 4.0
readarray -t LANGUAGES < languages.txt
echo "====================================================================="
echo "Download wikidata dump tables"
echo "====================================================================="
# 114M wikidatawiki-latest-geo_tags.sql.gz
# 1.7G wikidatawiki-latest-page.sql.gz
# 1.2G wikidatawiki-latest-wb_items_per_site.sql.gz
download https://dumps.wikimedia.org/wikidatawiki/latest/wikidatawiki-latest-geo_tags.sql.gz
download https://dumps.wikimedia.org/wikidatawiki/latest/wikidatawiki-latest-page.sql.gz
download https://dumps.wikimedia.org/wikidatawiki/latest/wikidatawiki-latest-wb_items_per_site.sql.gz
echo "====================================================================="
echo "Import wikidata dump tables"
echo "====================================================================="
echo "Importing wikidatawiki-latest-geo_tags"
gzip -dc wikidatawiki-latest-geo_tags.sql.gz | mysql2pgsqlcmd | psqlcmd
echo "Importing wikidatawiki-latest-page"
gzip -dc wikidatawiki-latest-page.sql.gz | mysql2pgsqlcmd | psqlcmd
echo "Importing wikidatawiki-latest-wb_items_per_site"
gzip -dc wikidatawiki-latest-wb_items_per_site.sql.gz | mysql2pgsqlcmd | psqlcmd
echo "====================================================================="
echo "Get wikidata places from wikidata query API"
echo "====================================================================="
echo "Number of place types:"
wc -l wikidata_place_types.txt
while read F ; do
echo "Querying for place type $F..."
wget --quiet "https://query.wikidata.org/bigdata/namespace/wdq/sparql?format=json&query=SELECT ?item WHERE{?item wdt:P31*/wdt:P279*wd:$F;}" -O $F.json
jq -r '.results | .[] | .[] | [.item.value] | @csv' $F.json >> $F.txt
awk -v qid=$F '{print $0 ","qid}' $F.txt | sed -e 's!"http://www.wikidata.org/entity/!!' | sed 's/"//g' >> $F.csv
cat $F.csv >> wikidata_place_dump.csv
rm $F.json $F.txt $F.csv
done < wikidata_place_types.txt
echo "====================================================================="
echo "Import wikidata places"
echo "====================================================================="
echo "CREATE TABLE wikidata_place_dump (
item text,
instance_of text
);" | psqlcmd
echo "COPY wikidata_place_dump (item, instance_of)
FROM '/srv/nominatim/Nominatim/data-sources/wikipedia-wikidata/wikidata_place_dump.csv'
DELIMITER ','
CSV
;" | psqlcmd
echo "CREATE TABLE wikidata_place_type_levels (
place_type text,
level integer
);" | psqlcmd
echo "COPY wikidata_place_type_levels (place_type, level)
FROM '/srv/nominatim/Nominatim/data-sources/wikipedia-wikidata/wikidata_place_type_levels.csv'
DELIMITER ','
CSV
HEADER
;" | psqlcmd
echo "====================================================================="
echo "Create derived tables"
echo "====================================================================="
echo "CREATE TABLE geo_earth_primary AS
SELECT gt_page_id,
gt_lat,
gt_lon
FROM geo_tags
WHERE gt_globe = 'earth'
AND gt_primary = 1
AND NOT( gt_lat < -90
OR gt_lat > 90
OR gt_lon < -180
OR gt_lon > 180
OR gt_lat=0
OR gt_lon=0)
;" | psqlcmd
echo "CREATE TABLE geo_earth_wikidata AS
SELECT DISTINCT geo_earth_primary.gt_page_id,
geo_earth_primary.gt_lat,
geo_earth_primary.gt_lon,
page.page_title,
page.page_namespace
FROM geo_earth_primary
LEFT OUTER JOIN page
ON (geo_earth_primary.gt_page_id = page.page_id)
ORDER BY geo_earth_primary.gt_page_id
;" | psqlcmd
echo "ALTER TABLE wikidata_place_dump
ADD COLUMN ont_level integer,
ADD COLUMN lat numeric(11,8),
ADD COLUMN lon numeric(11,8)
;" | psqlcmd
echo "UPDATE wikidata_place_dump
SET ont_level = wikidata_place_type_levels.level
FROM wikidata_place_type_levels
WHERE wikidata_place_dump.instance_of = wikidata_place_type_levels.place_type
;" | psqlcmd
echo "CREATE TABLE wikidata_places
AS
SELECT DISTINCT ON (item) item,
instance_of,
MAX(ont_level) AS ont_level,
lat,
lon
FROM wikidata_place_dump
GROUP BY item,
instance_of,
ont_level,
lat,
lon
ORDER BY item
;" | psqlcmd
echo "UPDATE wikidata_places
SET lat = geo_earth_wikidata.gt_lat,
lon = geo_earth_wikidata.gt_lon
FROM geo_earth_wikidata
WHERE wikidata_places.item = geo_earth_wikidata.page_title
;" | psqlcmd
echo "====================================================================="
echo "Process language pages"
echo "====================================================================="
echo "CREATE TABLE wikidata_pages (
item text,
instance_of text,
lat numeric(11,8),
lon numeric(11,8),
ips_site_page text,
language text
);" | psqlcmd
for i in "${LANGUAGES[@]}"
do
echo "CREATE TABLE wikidata_${i}_pages AS
SELECT wikidata_places.item,
wikidata_places.instance_of,
wikidata_places.lat,
wikidata_places.lon,
wb_items_per_site.ips_site_page
FROM wikidata_places
LEFT JOIN wb_items_per_site
ON (CAST (( LTRIM(wikidata_places.item, 'Q')) AS INTEGER) = wb_items_per_site.ips_item_id)
WHERE ips_site_id = '${i}wiki'
AND LEFT(wikidata_places.item,1) = 'Q'
ORDER BY wikidata_places.item
;" | psqlcmd
echo "ALTER TABLE wikidata_${i}_pages
ADD COLUMN language text
;" | psqlcmd
echo "UPDATE wikidata_${i}_pages
SET language = '${i}'
;" | psqlcmd
echo "INSERT INTO wikidata_pages
SELECT item,
instance_of,
lat,
lon,
ips_site_page,
language
FROM wikidata_${i}_pages
;" | psqlcmd
done
echo "ALTER TABLE wikidata_pages
ADD COLUMN wp_page_title text
;" | psqlcmd
echo "UPDATE wikidata_pages
SET wp_page_title = REPLACE(ips_site_page, ' ', '_')
;" | psqlcmd
echo "ALTER TABLE wikidata_pages
DROP COLUMN ips_site_page
;" | psqlcmd
echo "====================================================================="
echo "Add wikidata to wikipedia_article table"
echo "====================================================================="
echo "UPDATE wikipedia_article
SET lat = wikidata_pages.lat,
lon = wikidata_pages.lon,
wd_page_title = wikidata_pages.item,
instance_of = wikidata_pages.instance_of
FROM wikidata_pages
WHERE wikipedia_article.language = wikidata_pages.language
AND wikipedia_article.title = wikidata_pages.wp_page_title
;" | psqlcmd
echo "CREATE TABLE wikipedia_article_slim
AS
SELECT * FROM wikipedia_article
WHERE wikidata_id IS NOT NULL
;" | psqlcmd
echo "ALTER TABLE wikipedia_article
RENAME TO wikipedia_article_full
;" | psqlcmd
echo "ALTER TABLE wikipedia_article_slim
RENAME TO wikipedia_article
;" | psqlcmd
echo "====================================================================="
echo "Dropping intermediate tables"
echo "====================================================================="
echo "DROP TABLE wikidata_place_dump;" | psqlcmd
echo "DROP TABLE geo_earth_primary;" | psqlcmd
for i in "${LANGUAGES[@]}"
do
echo "DROP TABLE wikidata_${i}_pages;" | psqlcmd
done