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Basic stats (2019-09-23):
SELECT COUNT(*) FROM cdx WHERE NOT EXISTS (SELECT grobid.sha1hex FROM grobid WHERE cdx.sha1hex = grobid.sha1hex);
=> 28,023,760
=> Time: 253897.213 ms (04:13.897)
SELECT COUNT(DISTINCT sha1hex) FROM cdx WHERE NOT EXISTS (SELECT grobid.sha1hex FROM grobid WHERE cdx.sha1hex = grobid.sha1hex);
=> 22,816,087
=> Time: 287097.944 ms (04:47.098)
SELECT COUNT(*) FROM grobid.
=> 56,196,992
SELECT COUNT(DISTINCT sha1hex) FROM cdx;
=> 64,348,277
=> Time: 572383.931 ms (09:32.384)
SELECT COUNT(*) FROM cdx;
=> 74,796,777
SELECT mimetype, COUNT(*) FROM cdx GROUP BY mimetype ORDER BY COUNT(*) DESC;
=> Time: 189067.335 ms (03:09.067)
mimetype | count
------------------------+----------
application/pdf | 51049905
text/html | 24841846
text/xml | 524682
application/postscript | 81009
(4 rows)
Time: 189067.335 ms (03:09.067)
SELECT status_code, COUNT(*) FROM grobid GROUP BY status_code ORDER BY count(*) DESC;
status_code | count
-------------+----------
200 | 56196992
compare with older sandcrawler/output-prod/2019-05-28-1920.35-statuscodecount:
200 49567139
400 3464503
409 691917
500 247028
503 123
SELECT row_to_json(cdx) FROM cdx LIMIT 5;
SELECT row_to_json(r) FROM (
SELECT url, datetime FROM cdx
) r
LIMIT 5;
More stats (2019-12-27):
SELECT mimetype, COUNT(*) FROM file_meta GROUP BY mimetype ORDER BY COUNT(*) DESC LIMIT 20;
SELECT SUM(size_bytes) FROM file_meta;
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