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Plugin needs some optimisation to be used in large sites #40

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golenkovm opened this issue Mar 28, 2022 · 1 comment · May be fixed by #41
Open

Plugin needs some optimisation to be used in large sites #40

golenkovm opened this issue Mar 28, 2022 · 1 comment · May be fixed by #41

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@golenkovm
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It's been found that the following SQL is smashing DB when minduplicates is set to 5:

SELECT contenthash, COUNT(contenthash)
FROM mdl_files
WHERE filearea <> ? AND (filearea <> ? OR component <> ?)
GROUP BY contenthash
HAVING COUNT(contenthash) >= $1
@gthomas2
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I'm guessing that is due to the "HAVING" portion of the query.

@cameron1729 cameron1729 linked a pull request Apr 1, 2022 that will close this issue
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Performance improvements catalyst/moodle-filter_imageopt
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@gthomas2 @golenkovm