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| author | Alexandre Flament <alex@al-f.net> | 2021-09-25 11:16:22 +0200 |
|---|---|---|
| committer | Alexandre Flament <alex@al-f.net> | 2021-09-25 11:16:22 +0200 |
| commit | ab569c1e12672a2d54a51738863b37d2261de5f5 (patch) | |
| tree | 7b0cd69070fb00816247ae14216ab8439a0917e9 | |
| parent | 6f11b61cd5eebd0d9b046be20f4f225803279c67 (diff) | |
[fix] openstreetmap engine: optmizer SPARQL query
add
hint:Query hint:optimizer "None".
to the SPARQL query to keep the response time small.
It tells the optimizer to follow the path from ?item to the different property values
instead of the other way around.
See https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/query_optimization#Property_paths
| -rw-r--r-- | searx/engines/openstreetmap.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/searx/engines/openstreetmap.py b/searx/engines/openstreetmap.py index 07d536725..c6211a004 100644 --- a/searx/engines/openstreetmap.py +++ b/searx/engines/openstreetmap.py @@ -42,6 +42,7 @@ route_re = re.compile('(?:from )?(.+) to (.+)') wikidata_image_sparql = """ select ?item ?itemLabel ?image ?sign ?symbol ?website ?wikipediaName where { + hint:Query hint:optimizer "None". values ?item { %WIKIDATA_IDS% } OPTIONAL { ?item wdt:P18|wdt:P8517|wdt:P4291|wdt:P5252|wdt:P3451|wdt:P4640|wdt:P5775|wdt:P2716|wdt:P1801|wdt:P4896 ?image } OPTIONAL { ?item wdt:P1766|wdt:P8505|wdt:P8667 ?sign } |