[Koha-bugs] [Bug 18336] Use utf8mb4 instead of utf8 for MySQL tables, columns, and connections

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=18336

Victor Grousset/tuxayo <victor.grousset at biblibre.com> changed:

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--- Comment #67 from Victor Grousset/tuxayo <victor.grousset at biblibre.com> ---
Can there be a loss of performance after "text" → "mediumtext"?

https://stackoverflow.com/questions/3516290/any-pitfalls-of-converting-mysql-text-field-to-mediumtext
> with PHP 5.6 and PDO, mediumtext uses more memory than text (with same value, an empty string). In my simple test, the difference is 0.5 MiB vs. 1.5 MiB

Our ORM might have such an issue.

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