qendpoint-wikidata docker problems

[namespace-Pt]

I used the latest qendpoint-wikidata docker and download the wikidata_all split. After downloading the service quickly started. But after examination I had several problems:

1. cannot use sitelink

• the following query works fine

SELECT DISTINCT ?item ?itemLabel WHERE {
  ?item wdt:P39 wd:Q121594 .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "zh,en". }
}
LIMIT 10

• but the results become empty once I added sitelinks

SELECT DISTINCT ?item ?itemLabel ?linkcount WHERE {
  ?item wdt:P39 wd:Q121594 .
  ?item wikibase:sitelinks ?linkcount .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "zh,en". }
}
LIMIT 10

2. cannot search 'reversely'

• for example, select distinct * where{ wd:Q112619493 wdt:P26 ?s .} is fine but select distinct * where{ ?s wdt:P26 wd:Q112619493 .} is not.

[ate47]

It might be linked with the oldness of the dataset, did you try with the information on the Wiki from last time?