Random 7.5k sample of Wikidata items across different size strata, plus Wikidata low Q-ID items

SQL

use wikidatawiki_p;

(SELECT page_latest AS rev_id, page_title, page_len, "1024" as strata
FROM page 
WHERE page_namespace = 0 AND page_len BETWEEN 0 AND 1024 AND page_is_redirect = 0
ORDER BY RAND() LIMIT 1500)
UNION ALL
(SELECT page_latest AS rev_id, page_title, page_len, "8192" as strata
FROM page 
WHERE page_namespace = 0 AND page_len BETWEEN 1025 AND 8192 AND page_is_redirect = 0
ORDER BY RAND() LIMIT 1500)
UNION ALL
(SELECT page_latest AS rev_id, page_title, page_len, "131072" as strata
FROM page 
WHERE page_namespace = 0 AND page_len BETWEEN 8193 AND 131072 AND page_is_redirect = 0
ORDER BY RAND() LIMIT 1500)
UNION ALL
(SELECT page_latest AS rev_id, page_title, page_len, "262144" as strata
FROM page 
WHERE page_namespace = 0 AND page_len BETWEEN 131073 AND 262144 AND page_is_redirect = 0
ORDER BY RAND() LIMIT 500)
UNION ALL
(SELECT page_latest AS rev_id, page_title, page_len, "inf" as strata
FROM page 
WHERE page_namespace = 0 AND page_len >= 262145 AND page_is_redirect = 0
ORDER BY RAND() LIMIT 500)
UNION ALL
(SELECT page_latest AS rev_id, page_title, page_len, "low-qid" as strata
FROM page 
WHERE page_namespace = 0 AND page_is_redirect = 0
order by page_id
LIMIT 2000);
SQL

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