guergana.tzatchkova added a comment.
Example query for union of two conditions (OR):
SELECT DISTINCT ?item ?P281 ?P17 WHERE {
{
BIND("10777" AS ?P281)
?item p:P281 ?statement0.
?statement0 (ps:P281) "10777".
}
UNION
{
?item p:P17 ?statement1.
?statement1 (ps:P17) wd:Q147.
}
OPTIONAL { ?item (p:P281/ps:P281) ?P281 . }
OPTIONAL { ?item (p:P17/ps:P17) ?P17 . }
}
LIMIT 4
TASK DETAIL
https://phabricator.wikimedia.org/T277646
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