abian added a comment.
Hey over here. I'm writing to warn you that, unfortunately, this can be extremely problematic. Since Wikibase stores all dates with day precision, regardless of their actual precision (which is stored separately), and the irrelevant part of the value can be arbitrary, it's very easy to generate misinformation with these features, as has been quietly happening for years and continues to happen to many agents and to at least three Property constraint types (see T168379 <https://phabricator.wikimedia.org/T168379>, one of the most important causes of false positives in the very system that is intended to ensure data quality; and see https://reasonator.toolforge.org/?q=Q100410179 mentioning the year 1476, totally arbitrary value that Wikibase stores internally and shamelessly communicates to all software agents but does not display in its web interface). Including these features in the Query Builder aimed at the general public without first resolving this problem could have very undesirable consequences. I should have opened a Phabricator task describing this general problem and all its consequences, but I have never found the time or known where to start because of its magnitude and the questions it opens up. TASK DETAIL https://phabricator.wikimedia.org/T272697 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: abian Cc: abian, Charlie_WMDE, Lydia_Pintscher, amy_rc, Aklapper, Akuckartz, Nandana, Lahi, Gq86, GoranSMilovanovic, QZanden, LawExplorer, _jensen, rosalieper, Scott_WUaS, Wikidata-bugs, aude, Mbch331
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