describe revision_userindex; |
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show tables; |
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describe revision_userindex;
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describe revision;
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describe revision_userindex;
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describe revision;
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use enwiki_p;
select count(*) from revision where rev_user = 130326;
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use enwiki_p;
select count(*) from revision where rev_user = 130326;
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select count(*) from revision where rev_user = 130326;
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explain select count(*) from revision where rev_user = 33956805;
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explain select count(*) from revision use index(user_timestamp) where... |
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-- select count(*) from revision use index(user_timestamp) where rev_user =... |
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-- select count(*) from revision use index(user_timestamp) where rev_user =... |
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-- select count(*) from revision use index(user_timestamp) where rev_user =... |
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-- select count(*) from revision use index(user_timestamp) where rev_user =... |
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select count(*) from revision use index(user_timestamp) where rev_user = 33956805;
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select count(*) from revision use index(user_timestamp) where rev_user = 33956805;
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select count(*) from revision where rev_user = 33956805 using index user_timestamp;
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select count(*) from revision where rev_user = 33956805;
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-- select * from revision where rev_user = 33956805;
describe revision; |
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-- select * from revision where rev_user = 33956805;
SHOW INDEX IN revision; |
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-- select * from revision where rev_user = 33956805;
SHOW INDEX IN revision; |
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select * from revision where rev_user = 33956805; |
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select * from revision where rev_user_id = 33956805; |
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