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MySQL :: MySQL 5.1 Reference Manual :: 7.2.8 IS NULL Optimization

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MySQL :: MySQL 5.0 Reference Manual :: 7.2.8 IS NULL Optimization

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MySQL :: MySQL 5.0 Reference Manual :: 7.2.7 Cómo optimiza MySQL ...

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MySQL :: MySQL 6.0 Reference Manual :: 7.2.10 IS NULL Optimization

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MySQL :: MySQL 3.23, 4.0, 4.1 Reference Manual :: 7.2.6 IS NULL ...

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MySQL :: MySQL 5.1 with Maria Reference Manual :: 7.2.8 IS NULL ...

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MySQL Lists: mysql: Re: NULL, OR, and indexes

... And to answer my own question: > http://dev.mysql.com/doc/refman/5.0/en/is-null- optimization.html > explains that ref_is_null only works on the first part ... lists.mysql.com/mysql/192759

MySQL Lists: mysql: Re: NULL, OR, and indexes

... And to answer my own question: http://dev.mysql.com/doc/refman/5.0/en/is-null- optimization.html explains that ref_is_null only works on the first part of a ... lists.mysql.com/mysql/192758

MySQL Lists: commits: svn commit - mysqldoc@docsrva: r8434 - in ...

lists.mysql.com/commits/36770