MySQL Query still executing after a day..?
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by Matt Jarvis
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Published on 2010-06-01T14:29:25Z
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2010/06/01
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Hi - I'm trying to isolate duplicates in a 500MB database and have tried two ways to do it. One creating a new table and grouping:
CREATE TABLE test_table as SELECT * FROM items WHERE 1 GROUP BY title;
But it's been running for an hour and in MySQL Admin it says the status is Locked.
The other way I tried was to delete duplicates with this:
DELETE bad_rows.* from items as bad_rows inner join ( select post_title, MIN(id) as min_id from items group by title having count(*) > 1 ) as good_rows on good_rows.post_title = bad_rows.post_title;
..and this has been running for 24hours now, Admin telling me it's Sending data...
Do you think either or these queries are actually still running? How can I find out if it's hung? (with Apple OS X 10.5.7)
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