MySQL :: Re: Dumping enormous MYISAM table with BLOB based on WHERE clause

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Re: Dumping enormous MYISAM table with BLOB based on WHERE clause

Posted by: Jonathan Stephens
Date: January 29, 2015 06:27AM

Why is it necessary to drop/re-create/reload the table? You're not interested in saving any of the old data, right? So why not just run something like this in the mysql client?

DELETE FROM upload_table WHERE serve_date < "2015-01-01";

OPTIMIZE TABLE upload_table;

OPTIMIZE TABLE should recover the space from the deleted rows and rebuild any indexes that need it.

Jon Stephens
MySQL Documentation Team @ Oracle

MySQL Dev Zone
MySQL Server Documentation
Oracle

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Dumping enormous MYISAM table with BLOB based on WHERE clause

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Ifechukwukwu Okobi

January 29, 2015 12:40AM

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Jonathan Stephens

January 29, 2015 06:27AM

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January 29, 2015 10:34AM

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January 29, 2015 04:53PM

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Rick James

January 29, 2015 04:59PM

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January 30, 2015 05:49AM

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January 30, 2015 12:01PM

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January 30, 2015 05:46AM

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