Gary Pendergast 0d85038ce6 Schema: Increase the length of wp_options.option_name. ...

It's pretty easy to run over the `option_name` length, which causes undefined behaviour when inserting and retrieving options. Increasing the length from `VARCHAR(64)` to `VARCHAR(191)` significantly reduces the risk of this occurring.

Because `option_name` has a `UNIQUE` index, we can only increase it to 191 characters, rather than 255. The index can only use a prefix of 191 characters, so will incorrectly restrict long different strings that have the same prefix, if we make the column longer.

Props scribu, OriginalEXE, khromov, MikeHansenMe, netweb, pento.

Fixes #13310.


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git-svn-id: http://core.svn.wordpress.org/trunk@33999 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2015-09-11 01:26:24 +00:00

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